Thorlabs Inc.
Visit the Photodiode Power Sensors (C-Series) page for pricing and availability information

Photodiode Power Sensors (C-Series)

  • Power Ranges Covering 100 pW to 20 W
  • Wavelength Ranges Covering 200 nm to 5.5 µm
  • C-Series Connector for Quick Exchange

S120C

Sensor with IR
Target

S145C

Integrating Sphere Sensor

Posts and Post Holders Not Included

S140C

Integrating Sphere Sensor

S130C

Slim Sensor

S154C

Fiber Sensor

S170C

Microscope Slide
Power Sensor Head

Integrating Sphere Sensors Shown with FC/PC Adapters (Included on Sensors with Apertures ≤Ø12 mm)

Articulating Arm Not Included

S116C

Compact Slim Sensor

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OVERVIEW

Power Meter Selection Guide
Sensors
Photodiode Power Sensors
Thermal Power Sensors
Thermal Position & Power Sensors
Pyroelectric Energy Sensors
Power Meter Consoles and Interfaces
Digital Handheld Console
Analog Handheld Console
Touchscreen Handheld Console
Dual-Channel Benchtop Console
USB Interfaces with External Readout
Complete Power Meters
Power Meter Bundles
Wireless Power Meters with Sensors
Compact USB Power Meters
Field Power Meters for Terminated Fibers

Features

  • Fast Response Time and High Resolution
  • C-Series Connector Design for Quick Sensor Connection
  • Over-Temperature Alert Sensor (Except S130 Series and S170C and NS170C Microscope Slide Sensors)
  • Individually Calibrated with NIST- or PTB-Traceable Certificate of Calibration Plus Embedded Calibration Curve and Sensor Settings

Thorlabs' C-Series Photodiode Power Meter Sensors cover a wide power and wavelength range. These sensors are offered in standard, slim, microscope slide, integrating sphere, and compact fiber versions to meet your specific application requirements. They are the best sensor choice when a fast response time or high resolution is required and there is not a need for a flat spectral response.

These photodiode power meter sensors feature enhanced shielding to avoid electromagnetic interference as well as an over-temperature alert sensor to warn against damage and measurement errors due to overheating of the sensor (except the S130VC, S130C, and S132C Slim Sensors and the S170C, S171C, and NS170C Microscope Slide Sensors). For all sensors (except the S130VC, S130C, and S132C Slim Sensors and the S170C, S171C, and NS170C Microscope Slide Sensors), a set of fiber adapters is available to connect them to standard optical fiber patch cables (see below). Other fiber adapter types are available upon request.

The sensors below (except the S150C series) have universal 8-32 and M4 taps for mounting to Ø1/2" Posts. Posts and post holders are not included and sold separately.

Compatibility
The Photodiode Sensors presented here are compatible with C-Series power meter consoles including the PM400, PM100D, PM100A, and PM5020, as well as many of our C-series power and energy meter interfaces. The S150C Series Fiber Sensors are integrated into the connector itself and directly plugged into the console.

Calibration
Each sensor head is individually calibrated and is shipped with NIST- or PTB-traceable calibration data. The included data will match the calibration certification of the photodiode used to test the individual sensor. The calibration and identification data is stored in the connector of the sensor and is downloaded automatically to the connected power meter console.

Sensor Upgrade Service
All C-Series Sensors are incompatible with old power meter consoles with non-C-Series connectors. We offer a sensor upgrade service if you want to use your existing sensors with a new power meter console with C-Series connector. Note: upgraded sensors will be incompatible with old power meter consoles with non-C-Series connectors. Please contact our Tech Support team for details.

Recalibration Service
Thorlabs offers specific recalibration services for all our photodiode power sensors. To ensure accurate measurements, we recommend recalibrating the sensors annually. To order this service, scroll toward the bottom of the page and select the appropriate Item # that corresponds to your power sensor. For questions and pricing information pertaining to this service, please contact Tech Support.

Photodiode Sensor Selection Guide
Housing Type Standard Slim Compact Slim Microscope Slide Integrating Sphere Fiber-Coupled
Power Range 50 nW - 500 mW 500 pW - 500 mW 20 nW - 50 mW 1 nW - 350 mW 1 µW - 20 W 100 pW - 20 mW
Wavelength Range 200 - 1800 nm 200 - 1800 nm 400 - 1100 nm 350 - 1300 nm 350 - 5500 nm 350 - 1700 nm
Typical Application General Measurement Tight Places Microscope Alignment
and Calibration		 Divergent Beams Fiber
Fiber Adapters Available Yes Yes Yes No Yesa Yes
  • Fiber adapters are only available on integrating spheres with apertures ≤Ø12 mm.

Hide Specs

SPECS

These specifications were obtained at an ambient room temperature of 23 °C ± 0.5 °C and a humidity of 45% ± 15%.

For details on sensor-related terminology, see our list of definitions.

Standard Photodiode Sensors: S120C Series

Item # S120VC S120C S121C S122Ca
Technical Specs
Detector Type Silicon Photodiode (UV Extended) Silicon Photodiode Silicon Photodiode Germanium Photodide
Wavelength Range 200 nm - 1100 nm 400 nm - 1100 nm 400 nm - 1100 nm 700 nm - 1800 nm
Optical Power Range 50 nW - 50 mW 50 nW - 50 mW 500 nW - 500 mW 50 nW - 40 mW
Max Average Power Densityb 20 W/cm² 10 W/cm²
Max Pulse Energy 20 µJ
Linearity ±0.5%
Resolutionc 1 nW 1 nW 10 nW 2 nW
Measurement Uncertaintyd ±3% (440 - 980 nm)
±5% (280 - 439 nm)
±7% (200 - 279 nm,
981 - 1100 nm)		 ±3% (440 - 980 nm)
±5% (400 - 439 nm)
±7% (981 - 1100 nm)		 ±3% (440 - 980 nm)
±5% (400 - 439 nm)
±7% (981 - 1100 nm)		 ±5%
Responsivitye (Click for Details)
Raw Data
Raw Data
Raw Data
Raw Data
  • The minimum measurable power for Germanium photodiodes can vary due to large fluctuations in the sensor's dark current, which is dependent on wavelength and temperature. This is particularly true at the edges of the sensor's operating range where the responsivity is lower. The S122C also includes an ND filter with high attenuation from 700 nm to 900 nm in front of the sensor. This will also affect the measurable minimum power in that wavelength range.
  • For continuous wave (CW) sources, this value is equivalent to the peak power density, while for pulsed laser sources this value is calculated from the time-averaged power and beam profile. The maximum average power density is determined by the total energy deposited, so the instantaneous power can be higher, as long as the maximum pulse energy is not exceeded.
  • Measured with PM100D console in low bandwidth setting.
  • Beam diameter > 1 mm.
  • All sensor responsivities shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
  • For the S120VC, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had a reflective ND diffuser (OD1). Additionally, they came with an 8-32 tap and M4 adpater. For additional information, please contact technical support.
  • For the S120C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an absorptive ND diffuser (Schott NG3). Additionally, they came with an 8-32 tap and M4 adpater. For additional information, please contact technical support.
  • For the S121C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an absorptive ND diffuser (Schott NG9). Additionally, they came with an 8-32 tap and M4 adpater. For additional information, please contact technical support.
  • ST® is a registered trademark of Lucent Technologies, Inc.

Compact Slim Photodiode Sensor

Item # S116C
Technical Specs
Detector Type Silicon Photodiode
Wavelength Range 400 - 1100 nm
Optical Power
Working Range		 20 nW - 50 mW
Max Average
Power Densitya		 20 W/cm²
Max Pulse Energy 20 µJ
Linearity ±0.5%
Resolutionb 1 nW
Measurement
Uncertaintyc		 ±3% (451 - 1000 nm)
±5% (400 - 450 nm,
1001 - 1100 nm)
Responsivityd
(Click for Details)		 Typical Responsivity
Raw Data
  • For continuous wave (CW) sources, this value is equivalent to the peak power density, while for pulsed laser sources this value is calculated from the time-averaged power and beam profile. The maximum average power density is determined by the total energy deposited, so the instantaneous power can be higher, as long as the maximum pulse energy is not exceeded.
  • Measured with PM100D console in low bandwidth setting.
  • Beam diameter > 1 mm.
  • The sensor responsivity shown in this plot was calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
  • ST® is a registered trademark of Lucent Technologies, Inc.

Slim Profile Photodiode Sensors: S130C Series

Item # S130VC S130C S132Ca
Technical Specs
Detector Type Silicon Photodiode
(UV Extended)		 Silicon Photodiode Germanium Photodide
Wavelength Range 200 nm - 1100 nm 400 nm - 1100 nm 700 nm - 1800 nmb
Optical Power Range (with Filter) 500 pW - 0.5 mWc
(Up to 50 mW)c		 500 pW - 5 mW
(Up to 500 mW)		 5 nW - 5 mW
(Up to 500 mW)
Max Average
Power Densityd		 20 W/cm² 10 W/cm²
Max Pulse Energy 20 µJ
Linearity ±0.5%
Resolution 100 pWe 100 pWe 1 nWf
Measurement
Uncertaintyg		 ±3% (440 - 980 nm)
±5% (400 - 439 nm)
±7% (200 - 279 nm,
981 - 1100 nm)		 ±3% (440 - 980 nm)
±5% (280 - 439 nm)
±7% (981 - 1100 nm)		 ±5%
Responsivityh (Click for Details)
Raw Data
Raw Data
Raw Data
  • The minimum measurable power for Germanium photodiodes can vary due to large fluctuations in the sensor's dark current, which is dependent on wavelength and temperature. This is particularly true at the edges of the sensor's operating range where the responsivity is lower.
  • For the S132C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had a reflective ND diffuser (OD1), which would decrease the wavelength range from 700 nm to 1800 nm to 1200 nm to 1800 nm. For additional information, please contact technical support.
  • For the S130VC, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an optical power range of 5 nW - 5 mW (50 nW - 50 mW with filter) and a reflective ND diffuser (OD1). For additional information, please contact technical support.
  • For continuous wave (CW) sources, this value is equivalent to the peak power density, while for pulsed laser sources this value is calculated from the time-averaged power and beam profile. The maximum average power density is determined by the total energy deposited, so the instantaneous power can be higher, as long as the maximum pulse energy is not exceeded.
  • Measured with PM100D console in low bandwidth setting, without filter.
  • Measured with PM100D console in low bandwidth setting at 1550 nm, without filter.
  • Beam Diameter > 1 mm.
  • All sensor responsivities shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
  • For the S130C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an absorptive ND diffuser (Schott NG9). For additional information, please contact technical support.
  • ST® is a registered trademark of Lucent Technologies, Inc.

Microscope Slide Photodiode Sensors

Item # S170C S171C NS170C
Technical Specs
Detector Type Silicon Photodiode Second-Order Nonlinear Crystal
with Silicon Photodiode
Wavelength Range 350 - 1100 nm 400 - 1100 nm Laser: 780 - 1300 nm
SHG: 390 - 650 nm
Optical Power
Working Range		 10 nW - 150 mW 1 nW - 15 mW Laser: 0.5 - 350 mWa
SHG: 10 nW - 5 mW
Max Average
Power Densityb		 20 W/cm2 10 W/cm2 N/A
Max Peak Power Densityc - - 10 TW/cm2
Max Pulse Energy - - -
Linearity ±0.5% ±0.5%d
Resolution 1 nWe 0.5 pWf 1 nWd,e
Measurement
Uncertainty		 ±3% (440 - 980 nm)g
±5% (350 - 439 nm)g
±7% (981 - 1100 nm)g		 ±3% 440 – 980 nmg,h
 ±5% 400 – 439 nmg,h
±7% 981 – 1100 nmg,h		 ±3% (440 - 650 nm)d,i
±5% (390 - 439 nm)d,i
Responsivityj
(Click for Details)		 Typical Responsivity
Raw Data		 Typical Responsivity
Raw Data		 Typical Responsivity
Raw Data
  • The working range provided is for lasers with a repetition rate of 80 MHz. Because the peak power and peak power density are dependent on the average power and repetition rate of the laser, the upper limit to the working average power range will be lower for lower repetition rates. Exceeding the maximum average power may result in damage to the sensor's optical components.
  • For continuous wave (CW) sources, this value is equivalent to the peak power density, while for pulsed laser sources this value is calculated from the time-averaged power and beam profile. The maximum average power density is determined by the total energy deposited, so the instantaneous power can be higher, as long as the maximum pulse energy is not exceeded.
  • The specified damage threshold is for objectives with NA > 0.5. The damage threshold will be lower for NA < 0.5.
  • This specification is for the measured second harmonic generation (SHG) signal.
  • Measured with PM100D console in low bandwidth setting.
  • Measured with PM5020 console in low bandwidth setting.
  • Beam Diameter >1 mm.
  • Valid for (24 ± 2) °C
  • Valid for 1/e2 beam diameters >1 mm at the photodiode sensor. Please note that the photodiode sensor is several millimeters below the β-BBO crystal and for high NA objectives, the beam diameter is expanded appreciably.
  • The sensor responsivity shown in this plot was calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
  • For more information, please see the full presentation for our microscope slide peak power sensor for two-photon lasers.
  • These sensors are compatible with all currently available photodiode power meter consoles and interfaces, as well as the previous-generation PM200 and PM320E consoles; they are not compatible with other previous generation Thorlabs power meter consoles.

Integrating Sphere Photodiode Sensors

Item # S140C S142C S142CL S144C S145C S145CL S146C S148C S180C
Technical Specs
Detector Type Si Photodiode Si Photodiode with Baffle InGaAs Photodiode InGaAs Photodiode with Baffle InGaAs Photodiode Extended InGaAs Photodiode MCT (HgCdTe)
Photodiode
Wavelength Range 350 - 1100 nm 400 - 1100 nm 800 - 1700 nm 900 - 1650 nm 1200 - 2500 nm 2.9 µm - 5.5 µm
Optical Power Range 1 µW - 500 mW 1 µW - 5 W 10 µW - 5 W 1 µW - 500 mW 1 µW - 3 W 10 µW - 3 W 10 µW - 20 W 1 µW - 1 W 1 µW - 3 W
Max Average
Power Densitya		 1 kW/cm² 2 kW/cm² 1 kW/cm² 2 kW/cm² 1 kW/cm²
Max Pulse
Energy Density		 1 J/cm² 7 J/cm² 1 J/cm² 7 J/cm² 1 J/cm²
Linearity ±0.5%
Resolutionb 1 nW 10 nW 1 nW 10 nW 1 nW 10 nW
Measurement
Uncertaintyc,d		 ±3% (440 - 980 nm)
±5% (350 - 439 nm)
±7% (981 - 1100 nm)		 ±3%
(440 - 980 nm)
±5%
(400 - 439 nm)
±7%
(981 - 1100 nm)		 ±5%
Responsivitye
(Click for Plot)
Raw Data
Raw Data
Raw Data
Raw Data
Raw Data
Raw Data
Raw Data
Raw Data
Raw Data
  • For continuous wave (CW) sources, this value is equivalent to the peak power density, while for pulsed laser sources this value is calculated from the time-averaged power and beam profile. The maximum average power density is determined by the total energy deposited, so the instantaneous power can be higher, as long as the maximum pulse energy is not exceeded.
  • Measured with PM100D console in low bandwidth setting.
  • Beam Diameter > 1 mm.
  • Uncertainties for S142CL and S145CL are valid at a temperature of 24 °C ± 2 °C.
  • All sensor responsivities shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals except for the S180C. See the S180C responsivity plot to see the NIST-traceable reference points.
  • ST® is a registered trademark of Lucent Technologies, Inc.

Fiber-Coupled Photodiode Sensors: S150C Series

Item # S150C S151C S154C S155C
Technical Specs
Detector Type Si Photodiode InGaAs Photodiode
Wavelength Range 350 nm - 1100 nm 400 nm - 1100 nm 800 nm - 1700 nm 800 nm - 1700 nm
Optical Power Range 100 pW - 5 mW
(-70 dBm to 7 dBm)		 1 nW - 20 mW
(-60 dBm to 13 dBm)		 100 pW - 3 mW
(-70 dBm to 5 dBm)		 1 nW - 20 mW
(-60 dBm to 13 dBm)
Max Average Power Densitya 100 mW/cm² 10 W/cm² 100 mW/cm² 10 W/cm²
Max Pulse Energy 20 µJ
Linearity ±0.5%
Resolutionb 10 pW (-80 dBm) 100 pW (-70 dBm) 10 pW (-80 dBm) 100 pW (-70 dBm)
Measurement Uncertaintyc ±3% (440 - 980 nm)
±5% (350 - 439 nm)
±7% (981 - 1100 nm)		 ±3% (440 - 980 nm)
±5% (400 - 439 nm)
±7% (981 - 1100 nm)		 ±5%
Responsivityd (Click for Details)
Raw Data
Raw Data
Raw Data
Raw Data
  • For continuous wave (CW) sources, this value is equivalent to the peak power density, while for pulsed laser sources this value is calculated from the time-averaged power and beam profile. The maximum average power density is determined by the total energy deposited, so the instantaneous power can be higher, as long as the maximum pulse energy is not exceeded.
  • Measured with PM100D console in low bandwidth setting.
  • For a beam diameter > 1 mm incident on the active area of the detector (i.e. at the detector surface after the light has exited the fiber and passed through any internal optics).
  • All sensor responsivities shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
  • This specification is valid for devices with serial numbers 1203xxx and higher. For older versions, please contact technical support.
  • ST® is a registered trademark of Lucent Technologies, Inc.

Hide Pin Diagram

PIN DIAGRAM

Sensor Connectors

D-Type Male

DB9 Male

Pin Connection
S120, S140, and S150 Series, S116C, and S180C Sensors S170C, S171C, and NS170C Sensors S130 Series Sensors
1 Not Used
2 EEPROM Data
3 Photodiode Anode and NTC Ground Photodiode Anode Ground Photodiode Anode
4 Photodiode Cathode
5 Not Used
6 EEPROM Ground
7 NTC Not Used Slider Detection
8 Not Used
9 Not Used

Hide Pulse Calculations

PULSE CALCULATIONS

Pulsed Laser Emission: Power and Energy Calculations



Click above to download the full report.

Determining whether emission from a pulsed laser is compatible with a device or application can require referencing parameters that are not supplied by the laser's manufacturer. When this is the case, the necessary parameters can typically be calculated from the available information. Calculating peak pulse power, average power, pulse energy, and related parameters can be necessary to achieve desired outcomes including:

  • Protecting biological samples from harm.
  • Measuring the pulsed laser emission without damaging photodetectors and other sensors.
  • Exciting fluorescence and non-linear effects in materials.

Pulsed laser radiation parameters are illustrated in Figure 1 and described in the table. For quick reference, a list of equations is provided below. The document available for download provides this information, as well as an introduction to pulsed laser emission, an overview of relationships among the different parameters, and guidance for applying the calculations. 

 

Equations:
Period and repetition rate are reciprocal:    and 
Pulse energy calculated from average power:       
Average power calculated from pulse energy:        
Peak pulse power estimated from pulse energy:            

Peak power and average power calculated from each other:
  and
Peak power calculated from average power and duty cycle*:
*Duty cycle () is the fraction of time during which there is laser pulse emission.
Pulsed Laser Emission Parameters
Click to Enlarge

Figure 1: Parameters used to describe pulsed laser emission are indicated in the plot (above) and described in the table (below). Pulse energy (E) is the shaded area under the pulse curve. Pulse energy is, equivalently, the area of the diagonally hashed region. 

Parameter Symbol Units Description
Pulse Energy E Joules [J] A measure of one pulse's total emission, which is the only light emitted by the laser over the entire period. The pulse energy equals the shaded area, which is equivalent to the area covered by diagonal hash marks.
Period Δt  Seconds [s]  The amount of time between the start of one pulse and the start of the next.
Average Power Pavg Watts [W] The height on the optical power axis, if the energy emitted by the pulse were uniformly spread over the entire period.
Instantaneous Power P Watts [W] The optical power at a single, specific point in time.
Peak Power Ppeak Watts [W] The maximum instantaneous optical power output by the laser.
Pulse Width Seconds [s] A measure of the time between the beginning and end of the pulse, typically based on the full width half maximum (FWHM) of the pulse shape. Also called pulse duration.
Repetition Rate frep Hertz [Hz] The frequency with which pulses are emitted. Equal to the reciprocal of the period.

Example Calculation:

Is it safe to use a detector with a specified maximum peak optical input power of 75 mW to measure the following pulsed laser emission?

  • Average Power: 1 mW
  • Repetition Rate: 85 MHz
  • Pulse Width: 10 fs

The energy per pulse:

seems low, but the peak pulse power is:

It is not safe to use the detector to measure this pulsed laser emission, since the peak power of the pulses is >5 orders of magnitude higher than the detector's maximum peak optical input power.


Hide Console Selection

CONSOLE SELECTION

Thorlabs offers a wide selection of power and energy meter consoles and interfaces for operating our power and energy sensors. Key specifications of all of our power meter consoles and interfaces are presented below to help you decide which device is best for your application. We also offer self-contained wireless power meters and compact USB power meters.

When used with our C-series sensors, Thorlabs' power meter consoles and interfaces recognize the type of connected sensor and measure the current or voltage as appropriate. Our C-series sensors have responsivity calibration data stored in their connectors. The console will read out the responsivity value for the user-entered wavelength and calculate a power or energy reading.

  • Photodiode sensors deliver a current that depends on the input optical power and the wavelength. The current is fed into a transimpedance amplifier, which outputs a voltage proportional to the input current. The photodiode's responsivity is wavelength dependent, so the correct wavelength must be entered into the console for an accurate power reading. The console reads out the responsivity for this wavelength from the connected sensor and calculates the optical power from the measured photocurrent.
  • Thermal sensors deliver a voltage proportional to the input optical power. Based on the measured sensor output voltage and the sensor's responsivity, the console will calculate the incident optical power.
  • Energy sensors are based on the pyroelectric effect. They deliver a voltage peak proportional to the pulse energy. If an energy sensor is recognized, the console will use a peak voltage detector and the pulse energy will be calculated from the sensor's responsivity.

The consoles and interfaces are also capable of providing a readout of the current or voltage delivered by the sensor. Select models also feature an analog output.

Consoles

Item # PM100A PM100D PM400 PM5020
(Click Photo to Enlarge) PM100A PM100D PM400 PM5020
Key Features Analog Power Measurements Digital Power and Energy Measurements Digital Power and Energy Measurements, Touchscreen Control Dual Channel
Compatible Sensors Photodiode and Thermal Power Photodiode Power, Thermal Power, and Pyroelectric Energya Photodiode Power, Thermal Power, Thermal Power and Position, and Pyroelectric Energya Photodiode Power, Thermal Power, Thermal Power and Position, and Pyroelectric Energy
Housing Dimensions
(H x W x D)		 7.24" x 4.29" x 1.61"
(184 mm x 109 mm x 41 mm)		 7.09" x 4.13" x 1.50"
(180 mm x 105 mm x 38 mm)		 5.35" x 3.78" x 1.16"
(136.0 mm x 96.0 mm x 29.5 mm)		 9.97" x 4.35" x 11.56"
(253.2 mm x 110.6 mm x 293.6 mm)
Channels 1 2
External Temperature Sensor Input (Sensor not Included) - - Readout and Record Temperature Over Time Readout and Record Temperature Over Time
External Humidity Sensor Input (Sensor not Included) - - Readout and Record Humidity Over Time Readout and Record Humidity Over Time
Input/Output Ports - 4 GPIO, Programmable 4 Configurable Digital I/O Channels
Shutter Control - - - Support for SH05R(/M) or SH1(/M) Optical Shutter with Interlock Input
Fan Control - - - Yes!
Source Spectral Correction - - Yes! Yes!
Attenuation Correction - - Yes! Yes!
External Trigger Input - - - Yes!
Display
Type Mechanical Needle and LCD Display with Digital Readout 320 x 240 Pixel Backlit Graphical LCD Display Protected Capacitive Touchscreen with Color Display
Dimensions Digital: 1.9" x 0.5"
(48.2 mm x 13.2 mm)
Analog: 3.54" x 1.65"
(90.0 mm x 42.0 mm)		 3.17" x 2.36"
(81.4 mm x 61.0 mm)		 3.7" x 2.1"
(95 mm x 54 mm)		 4.32" x 2.43"
(109.7 mm x 61.6 mm)
Refresh Rate 20 Hz 10 Hz (Numerical)
25 Hz (Analog Simulation)		 25 Hz
Measurement Viewsb
Numerical yes yes yes
Mechanical Analog Needle yes - - -
Simulated Analog Needle - yes Yes! yes
Bar Graph - yes Yes! yes
Trend Graph - yes Yes! yes
Histogram - yes - -
Statistics Yes! yes Yes! yes
Memory
Type - SD Card NAND Flash SD Card
Size - 2 GB 4 GB 8 GB
Power
Battery LiPo 3.7 V 1300 mAh LiPo 3.7 V 2600 mAh -
External 5 VDC via USB or Included AC Adapter 5 VDC via USB Line Voltage: 100 - 240 V
  • As the PM100D and PM400 consoles can only support repetition rates of up to 3 kHz, they should not be used with the ES408C sensor, which detects repetition rates up to 10 kHz.
  • These are the measurement views built into the unit.

Interfaces

Item # PM101 PM102 PM103 PM101A PM102A PM103A
(Click Photo to Enlarge) PM101 PM102 PM103 PM101A PM102A PM103A
Operation Protocol USB, RS232, UART,
and Analog		 USB and Analog SMA
Sensor Compatibility
Photodiode - -
Thermal Power - -
Thermal Position & Power - - - -
Pyroelectric - - - -

Item # PM103E PM101R PM101U PM102U PM103U PM100USB
(Click Photo to Enlarge) PM101R PM101U PM102U PM103U PM100USB
Operation Protocol Ethernet, RS232, and Analog USB and
RS232		 USB Operation USB
Sensor Compatibility
Photodiode -
Thermal Power -
Thermal Position & Power - - - -
Pyroelectric - - - a
  • As the PM100USB interface can only support repetition rates of up to 3 kHz, it should not be used with the ES408C sensor, which detects repetition rates up to 10 kHz.
  • Dependent on PC Settings
  • These power meter interfaces do not have a built-in monitor, so all data must be displayed through a PC running the Optical Power Monitor Software.
  •  48 V is the nominal voltage over the network, but can range from 36 V - 57 V.

Hide Sensor Selection

SENSOR SELECTION

Handheld Power Meter with iPad
Click to Enlarge
The PM160 wireless power meter, shown here with an iPad mini (not included), can be remotely operated using Apple mobile devices.

This tab outlines the full selection of Thorlabs' power and energy sensors. Refer to the lower right table for power meter console and interface compatibility information.

In addition to the power and energy sensors listed below, Thorlabs also offers all-in-one, wireless, handheld power meters and compact USB power meter interfaces that contain either a photodiode or a thermal sensor, as well as power meter bundles that include a console, sensor head, and post mounting accessories.

Thorlabs offers four types of sensors:

  • Photodiode Sensors: These sensors are designed for power measurements of monochromatic or near-monochromatic sources, as they have a wavelength dependent responsivity. These sensors deliver a current that depends on the input optical power and the wavelength. The current is fed into a transimpedance amplifier, which outputs a voltage proportional to the input current.
  • Thermal Sensors: Constructed from material with a relatively flat response function across a wide range of wavelengths, these thermopile sensors are suitable for power measurements of broadband sources such as LEDs and SLDs. Thermal sensors deliver a voltage proportional to the input optical power.
  • Thermal Position & Power Sensors: These sensors incorporate four thermopiles arranged as quadrants of a square. By comparing the voltage output from each quadrant, the unit calculates the beam's position.
  • Pyroelectric Energy Sensors: Our pyroelectric sensors produce an output voltage through the pyroelectric effect and are suitable for measuring pulsed sources, with a repetition rate limited by the time constant of the detector. These sensors will output a peak voltage proportional to the incident pulse energy.
Console Compatibility
Console Item # PM100A PM100D PM400 PM5020 PM101
Series		 PM102
Series		 PM103
Series		 PM100USB
Photodiode Power -
Thermal Power -
Thermal Position - - - - -
Pyroelectric Energy - a a - - a
  • As the PM100D and PM400 consoles and the PM100USB interface can only support repetition rates of up to 3 kHz, they should not be used with the ES408C sensor, which detects repetition rates up to 10 kHz.

Power and Energy Sensor Selection Guide

There are two options for comparing the specifications of our Power and Energy Sensors. The expandable table below sorts our sensors by type (e.g., photodiode, thermal, or pyroelectric) and provides key specifications.

Alternatively, the selection guide graphic further below arranges our entire selection of photodiode and thermal power sensors by wavelength (left) or optical power range (right). Each box contains the item # and specified range of the sensor. These graphs allow for easy identification of the sensor heads available for a specific wavelength or power range.

Photodiode Power Sensors
Thermal Power Sensors
Thermal Position & Power Sensors
Pyroelectric Energy Sensors
  • The response time of the photodiode sensor. The actual response time of a power meter using these sensors will be limited by the update rate of your power meter console.
  • The power range provided is for lasers with a repetition rate of 80 MHz. Because the peak power and peak power density are dependent on the average power and repetition rate of the laser, the upper limit to the working average power range will be lower for lower repetition rates. Please see the Specs tab here for more details. 
  • Typical natural response time (0 - 95%). Our power consoles can provide estimated measurements of optical power on an accelerated time scale (typically <1 s) when the natual response time is approximately 1 s or greater. As the natural response times of the S415C, S425C, and S425C-L are fast, these do not benefit from accelerated measurements and this function cannot be enabled. For more information, see the Operation tab here.
  • With intermittent use: maximum exposure time of 20 minutes for the S401C, otherwise maximum exposure time is 2 minutes.
  • All pyroelectric sensors have a thermal time constant, τ. This value indicates how long it takes the sensor to recover from a single pulse. To detect the correct energy levels, pulses must be shorter than 0.1τ and the repetition rate of your source must be well below 1/τ. Please see the Specs tab here for the τ value of each sensor.

Sensor Options
(Arranged by Wavelength Range)

Sensors by Wavelength

Sensor Options
(Arranged by Power Range)

Sensors by Power

Sensor Key


Hide Standard Photodiode Power Sensors

Standard Photodiode Power Sensors

S120C and quick release 30mm Cage System
Click to Enlarge
S120C and CP44F Quick-Release Mount
  • For General Purpose Optical Power Measurements
  • Integrated Viewing Target for Easy Sensor Alignment
  • Ø9.5 mm Sensor Aperture
  • Fiber Adapters Available Separately (See Table Below)
  • Sensor, Protective Cap, and IR Target Included

The S12xC Standard Photodiode Power Sensors are ideal for metering low power coherent and incoherent sources from the UV to the NIR. These sensors feature an integrated viewing target for easy alignment, enhanced shielding against electromagnetic interference, over temperature alert device, and large Ø9.5 mm sensor aperture. The sensors are compatible with  Ø1/2" posts and SM1 (1.035"-40) lens tubes and are ideal for free-space and fiber-coupled sources. They may also be mounted in 30 mm cage systems using our selection of 30 mm Cage System Optic Mounts with internal SM1 threading.

Each sensor is shipped with NIST- or PTB-traceable calibration data. The included data will match the calibration certification of the photodiode used to test the individual sensor. Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-UVPD for UV-extended Si sensors, Item # CAL-PD for Si sensors and Item # CAL-IRPD for Ge sensors).

Item #a S120VC S120C S121C S122Cb,i
Sensor Image
(Click the Image to Enlarge)

S120VC

S120C

S121C

S122C
Aperture Size Ø9.5 mm
Wavelength Range 200 - 1100 nm 400 - 1100 nm 400 - 1100 nm 700 - 1800 nm
Power Range 50 nW - 50 mW 500 nW - 500 mW 50 nW - 40 mW
Detector Type Si Photodiode (UV Extended) Si Photodiode Ge Photodiode
Linearity ±0.5%
Resolutionc 1 nW 10 nW 2 nW
Measurement Uncertaintyd ±3% (440 - 980 nm)
±5% (280 - 439 nm)
±7% (200 - 279 nm,
981 - 1100 nm)		 ±3% (440 - 980 nm)
±5% (400 - 439 nm)
±7% (981 - 1100 nm)		 ±5%
Responsivitye (Click for Plot)
Raw Data
Raw Data
Raw Data
Raw Data
Coating/Diffuser Reflective ND (OD1.5)f Reflective ND (OD1)g Reflective ND (OD2)h Absorptive ND (Schott NG9)
Head Temperature Measurement NTC Thermistor 4.7 kΩ
Housing Dimensions Ø30.5 mm x 12.7 mm
Active Detector Area 9.7 mm x 9.7 mm
Cable Length 1.5 m
Mounting Threadf,g,h Universal 8-32 / M4 Tap, Post Not Included
Aperture Thread External SM1 (1.035"-40)
Fiber Adapters S120-FC2, S120-FC, S120-APC2, S120-APC, S120-SMA, S120-ST, S120-LC, S120-SC, and S120-25 (Not Included)
Compatible Consoles PM400, PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101R, PM101U, PM103, PM103E, PM103A, PM103U, and PM100USB
  • For complete specifications, please see the Specs tab.
  • The minimum measurable power for Germanium photodiodes can vary due to large fluctuations in the sensor's dark current, which is dependent on wavelength and temperature. This is particularly true at the edges of the sensor's operating range where the responsivity is lower. The S122C also includes an ND filter with high attenuation from 700 nm to 900 nm in front of the sensor. This will also affect the measurable minimum power in that wavelength range.
  • Measured with PM100D console in low bandwidth setting.
  • Beam diameter > 1 mm.
  • All sensor responsivities shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
  • For the S120VC, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had a reflective ND diffuser (OD1). Additionally, they came with an 8-32 tap and M4 adapter. For additional information, please contact technical support.
  • For the S120C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an absorptive ND diffuser (Schott NG3). Additionally, they came with an 8-32 tap and M4 adapter. For additional information, please contact technical support.
  • For the S121C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an absorptive ND diffuser (Schott NG9). Additionally, they came with an 8-32 tap and M4 adapter. For additional information, please contact technical support.
  • Previously, S122C came with an 8-32 tap and M4 adapter. For additional information, please contact technical support.

Part Number
Description
Price
Availability
S120VC
Standard Photodiode Power Sensor, UV-Extended Si, 200 - 1100 nm, 50 nW - 50 mW
$494.17
3 Weeks
S120C
Standard Photodiode Power Sensor, Si, 400 - 1100 nm, 50 nW - 50 mW
$356.39
3-5 Days
S121C
Standard Photodiode Power Sensor, Si, 400 - 1100 nm, 500 nW - 500 mW
$387.27
3-5 Days
S122C
Standard Photodiode Power Sensor, Ge, 700 - 1800 nm, 50 nW - 40 mW
$711.56
3 Weeks

Hide Slim Photodiode Power Sensors

Slim Photodiode Power Sensors


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[APPLIST]
[APPLIST]
S130C Sensor in a 30 mm Cage

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SM1A29 SM1 Thread Adapter
Mounted on a S130C Sensor

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[APPLIST]
S130C Photodiode Sensor Mounted in FiberBench System Using FBSM Mount
  • For Optical Power Measurements in Confined Spaces
  • Slim Design: 5 mm Thin on Sensor Side
  • Ø9.5 mm Sensor Aperture
  • Slideable ND Filter Automatically Changes Sensor Power Range
  • Accessories Available Separately Below:
    • SM1A29 Adapter with VIS/IR Target and External SM1 Threading
    • FBSM Mount with VIS/IR Target for FiberBench Systems

The S13xC Slim Photodiode Power Sensors are designed to take optical source power measurements in locations where space and accessibility are at a premium. The 5 mm thin
Slim Photodiode Sensors can fit between closely spaced optics, cage systems, and other arrangements where standard power meters may not fit. These sensors also feature a large Ø9.5 mm sensor aperture and slideable neutral density filter for dual power ranges in one compact device.

A separately available SM1A29 adapter can be attached by 2 setscrews to any S130 series power sensor to mount fiber adapters, light shields, filters or any other SM1-threaded (1.035"-40) mechanics or optics. The FBSM Mount allows our S130 series power sensors to be mounted vertically into FiberBench systems for stable mounting with a minimal footprint.

Each sensor is shipped with NIST- or PTB-traceable calibration data. The included data will match the calibration certification of the photodiode used to test the individual sensor. Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-UVPD2 for UV-extended Si sensors, Item # CAL-PD2 for Si sensors, and Item # CAL-IRPD2 for Ge sensors).

Item #a S130VC S130C S132Cb
Sensor Image
(Click the Image to Enlarge)

S130VC

S130C

S132C
Aperture Size Ø9.5 mm
Wavelength Range 200 - 1100 nm 400 - 1100 nm 700 - 1800 nmc
Power Range
(with Filter)		 500 pW - 0.5 mWd
(Up to 50 mW)d		 500 pW - 5 mW
(Up to 500 mW)		 5 nW - 5 mW
(Up to 500 mW)
Detector Type Si Photodiode (UV Extended) Si Photodiode Ge Photodiode
Linearity ±0.5%
Resolution 100 pWe 1 nWf
Measurement Uncertaintyg ±3% (440 - 980 nm)
±5% (280 - 439 nm)
±7% (200 - 279 nm, 981 - 1100 nm)		 ±3% (440 - 980 nm)
±5% (400 - 439 nm)
±7% (981 - 1100 nm)		 ±5%
Responsivityh (Click for Plot)
Raw Data
Raw Data
Raw Data
Coating/Diffuser Reflective ND (OD1.5)d Reflective ND (OD2)i Absorptive ND (Schott NG9/KG3)c
Housing Dimensions 150 mm x 19 mm x 10 mm; 5 mm Thickness on Sensor Side
Active Detector Area 9.7 mm x 9.7 mm
Cable Length 1.5 m
Mounting Thread Separate 8-32 and M4 Taps, Posts Not Included
Adapters (Not Included) SM1A29: Add SM1 Thread and Viewing Target to Aperture
Fiber Adapters Compatible with SM1A29 Adapter: S120-FC2, S120-FC, S120-APC2, S120-APC,
S120-SMA, S120-ST, S120-LC, S120-SC, and S120-25
FBSM: Integrate Sensor into FiberBench Setups
Compatible Consoles PM400, PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101R, PM101U, PM103, PM103A, PM103E, PM103U, and PM100USB
  • For complete specifications, please see the Specs tab.
  • The minimum measurable power for Germanium photodiodes can vary due to large fluctuations in the sensor's dark current, which is dependent on wavelength and temperature. This is particularly true at the edges of the sensor's operating range where the responsivity is lower.
  • For the S132C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had a reflective ND diffuser (OD1), which would decrease the wavelength range from 700 nm to 1800 nm to 1200 nm to 1800 nm. For additional information, please contact technical support.
  • For the S130VC, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an optical power range of 5 nW to 5 mW (50 nW to 50 mW with filter) and a reflective ND diffuser (OD1). For additional information, please contact technical support.
  • Measured with PM100D console in low bandwidth setting, without filter.
  • Measured with PM100D console in low bandwidth setting at 1550 nm, without filter.
  • Beam Diameter > 1 mm.
  • All sensor responsivities shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
  • For the S130C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an absorptive ND diffuser (Schott NG9). For additional information, please contact technical support.
SM1A29 is an adapter that can be attached by 2 set screws to any S130 series power sensor. This gives the possibility to mount fiber adapters, light shields, filters or any other SM1 threaded mechanics or optics.

Part Number
Description
Price
Availability
S130VC
Slim Photodiode Power Sensor, UV-Extended Si, 200 - 1100 nm, 500 pW - 0.5 mW, Up to 50 mW with Filter
$717.51
3 Weeks
S130C
Slim Photodiode Power Sensor, Si, 400 - 1100 nm, 500 pW - 5 mW, Up to 500 mW with Filter
$592.77
3-5 Days
S132C
Slim Photodiode Power Sensor, Ge, 700 - 1800 nm, 5 nW - 5 mW, Up to 500 mW with Filter
$842.24
Lead Time
SM1A29
Customer Inspired! SM1 Thread Adapter for Slim Photodiode Sensors
$49.01
Lead Time
FBSM
FiberBench Mount for Slim Photodiode Sensors
$48.69
3 Weeks

Hide Compact Slim Photodiode Power Sensor

Compact Slim Photodiode Power Sensor

Item #a S116C
Sensor Image
(Click the Image to Enlarge)

S116C
Aperture Size Ø6 mm
Wavelength Range 400 - 1100 nm
Power Range 20 nW - 50 mW
Detector Type Si Photodiode
Linearity ±0.5%
Resolution 1 nWb
Measurement Uncertaintyc ±3% (451 - 1000 nm)
±5% (400 - 450 nm, 1001 - 1100 nm)
Responsivityd
(Click for Plot)		 Typical Responsivity
Raw Data
Coating/Diffuser Absorptive ND (NG9)
Housing Dimensions
(L x W x T)		 70.0 mm x 11.0 mm x 8.9 mm;
10.0 mm Width and 4.5 mm Thickness on Sensor Side
Active Detector Area 7 mm x 7 mm
Cable Length 1.5 m
Mounting Threads 2 Universal 8-32 / M4 Taps
(One on the Back, One on the Bottom),
Posts Not Included
Adapters
(Not Included)		 SM05A29: Add SM05 Thread to Aperture
Fiber Adapters Compatible with SM05A29 Adapter:
PM20-FC2, PM20-FC, PM20-APC2, PM20-APC,
PM20-SMA, PM20-ST, PM20-SC, and PM20-LC, and PM20-25
Compatible Consoles PM400, PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101R, PM101U, PM103, PM103A, PM103E, PM103U, and PM100USB
  • For complete specifications, please see the Specs tab.
  • Measured with PM100D console in low bandwidth setting.
  • Beam Diameter > 1 mm.
  • The sensor responsivity shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
SM1A29 is an adapter that can be attached by 2 set screws to any S130 series power sensor. This gives the possibility to mount fiber adapters, light shields, filters or any other SM1 threaded mechanics or optics.
  • For Optical Power Measurements in Tiny Spaces Such as 16 mm Cage Systems
  • Wavelength Range: 400 - 1100 nm
  • Very Slim Design: 10.0 mm Wide and 4.5 mm Thin on Sensor Side
  • Silicon Photodiode with Ø6 mm Sensor Aperture
  • Designed for Power Measurements for Low Power Lasers
  • Post Mountable via 8-32 (M4) Taps
  • SM05A29 Adapter with External SM05 (0.535"-40) Threading Available Separately Below

The S116C Compact Slim Photodiode Power Sensor is designed to take optical source power measurements in locations where space and accessibility are at a premium. The 4.5 mm thin photodiode sensor can fit between the rods of a 16 mm cage system, as seen in the application photo below, as well as through the side openings of our slotted Ø1/2" lens tubes (Item #s SM05L20C and SM05L30C). This sensor also features a Ø6 mm sensor aperture.

A separately available SM05A29 adapter can be attached by two 0.05" (1.3 mm) hex setscrews to an S116C power sensor to mount fiber adapters, light shields, filters or any other SM05-threaded (0.535"-40) mechanics or optics. The adapter mounted on the S116C power sensor is shown below.

Each sensor is shipped with NIST- and PTB-traceable calibration data. The included data is determined with the help of a certified reference diode, which corresponds to the spectral range of the sensor to be calibrated. Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-PD for Si sensors).


Click to Enlarge
[APPLIST]
[APPLIST]
S116C Sensor in a 16 mm Cage System

Click for Details
SM05A29 SM05 Thread Adapter
(Sold Separately) Mounted on
an S116C Sensor

Part Number
Description
Price
Availability
S116C
Compact Slim Photodiode Power Sensor, Si, 400 - 1100 nm, 20 nW - 50 mW
$439.11
3-5 Days
SM05A29
SM05-Threaded Adapter for Compact Slim Photodiode Sensors
$46.10
3-5 Days

Hide Microscope Slide Photodiode Power Sensors

Microscope Slide Photodiode Power Sensors

Microscope Beam Alignment
Click for Details
Using the engraved alignment target on the back of the sensor housing, a user can position the stage so that when the sensor is flipped, the beam strikes the center of the sensor. The S170C sensor is shown in this image.
  • Designed to Measure Optical Power at the Sample Plane of a Microscope
  • Silicon Photodiode with Large 18 mm x 18 mm Active Area
  • Sensor Housing Dimensions: 76.0 mm x 25.2 x 5.0 mm
  • Novel Optical Design Accommodates High NA Objectives
  • Information Stored in Connector
    • Sensor Data
    • NIST- and PTB-Traceable Calibration Data
  • Post Mountable via 8-32 (M4 x 0.7) Tap

The Microscope Slide Power Sensor Heads with silicon photodiodes are designed to measure the power at the sample plane in microscopy setups. The S170C sensor can detect wavelengths from 350 nm to 1100 nm at optical powers from 10 nW to 150 mW, while the S171C sensor can detect wavelengths from 400 nm to 1100 nm at powers from 1 nW to 15 mW. The NS170C sensor is designed to measure the relative peak power of femtosecond lasers with center wavelengths from 780 nm to 1300 nm and average powers from 0.5 mW to 350 mW. Each sensor head's 76.0 mm x 25.2 mm footprint matches that of a standard microscope slide and is compatible with most standard upright and inverted microscopes.

The photodiodes used in the S170C and S171C sensors have 18 mm x 18 mm active areas and are contained in sealed housings behind neutral density (ND) filters. A 20 mm x 20 mm indentation around the surface of the ND filter is sized to accept standard microscope cover slips. An immersion medium (water, glycerol, oil) may be placed in this well directly over the ND filter, or a cover slip may be inserted first to simplify clean up. The gap between the photodiode and the neutral density filter has been filled with an index matching gel in order to prevent internal reflections from causing significant measurement errors when using high NA objectives with oil or water.

The NS170C sensor is designed to measure the relative peak power of two-photon lasers by utilizing a second-order nonlinear β-BBO crystal to convert incident ultrafast NIR pulses into their visible second harmonic. Shortpass filters underneath the β-BBO crystal reject the residual NIR light, allowing only the second harmonic light to transmit down to a large area silicon photodiode sensor. At the entrance of the sensor is a 170 µm thick cover glass sealed to the sensor housing, allowing the sensor to be used with dry, water immersion, and oil immersion objectives. The working distance from the top of the cover glass to the β-BBO crystal is 0.22 mm.

The bottom of each sensor housing features a laser-engraved grid to aid in aligning and focusing the beam. In standard microscopes, this grid can be used for beam alignment before flipping the sensor head to face the objective for power measurements. In inverted microscopes, turn on the transmitted illuminator to align the grid on the detector housing with the beam, thereby centering the sensor in front of the objective. Alternatively, the diffusive surface of the ND filter can be used as a focusing plane.

To avoid damaging the sensor, we recommend positioning it in the light path at a location where the beam is not focused. It is important not to exceed the Max Average Power Density over the beam's spot size for the S170C and S171C sensors, and the Max Peak Power Density for the NS170C sensor (see Specs tab) .

Each sensor is shipped with NIST- or PTB-traceable calibration data. The included data will match the calibration certification of the photodiode used to test the individual sensor. Sensor specifications and the included NIST- or PTB-traceable calibration data are stored in non-volatile memory in the sensor connector and can be read out by the latest generation of Thorlabs power meters. Please note that the NS170C sensor's NIST and PTB calibration is for the visible light incident on the detector; however, the magnitude of that visible light is specific to the illumination conditions of the NIR femtosecond pulses. We recommend yearly recalibration to ensure accuracy and performance, which can be ordered below (see Item # CAL-PD for S170C and S171C sensors, and Item # CAL-NS for the NS170C sensor). Please contact Tech Support for more information.

The complete set of specifications are presented on the Specs tab above. Thorlabs also offers a Microscope Slide Sensor Head with a thermal sensor; the full presentation can be found here.

Item #a S170C S171C NS170C
Sensor Image
(Click Image to Enlarge)		 S170C Microscope Slide Power Head S170C Microscope Slide Power Head NS170C Microscope Slide Power Head
Dimensions 76.0 mm x 25.2 mm x 5.0 mm
(2.99" x 0.99" x 0.20")		 Base: 76.0 mm x 25.2 mm x 5.0 mm
(2.99" x 0.99" x 0.20")
Overall: 76.0 mm x 30.0 mm x 11.0 mm
(2.99" x 1.18" x 0.43")
Active Detector Area 18 mm x 18 mm
Input Aperture 20 mm x 20 mm Ø4.5 mm
Wavelength Range 350 - 1100 nm 400 - 1100 nm Laser: 780 - 1300 nm
SHG: 390 - 650 nm
Optical Power Working Range 10 nW - 150 mW 1 nW - 15 mW Laser: 0.5 - 350 mWb
SHG: 10 nW - 5 mW
Max Peak Power Densityc - - 10 TW/cm2
Detector Type Silicon Photodiode Second-Order Nonlinear Crystal
with Silicon Photodiode
Linearity ±0.5% ±0.5%d
Resolution 1 nWe 0.5 pWf 1 nWd,e
Measurement Uncertaintyg ±3% (440 - 980 nm)
±5% (350 - 439 nm)
±7% (981 - 1100 nm)		 ±3% (440 - 980 nm)h
±5% (400 - 439 nm)h
±7% (981 - 1100 nm)h		 ±3% (440 - 650 nm)d
±5% (390 - 439 nm)d
Responsivityi
(Click for Plot)		 Typical Responsivity
Raw Data		 Typical Responsivity
Raw Data		 Typical Responsivity
Raw Data
Neutral Density Filter Reflective (OD 1.5) Absorptive (OD 0.4) N/A
Cable Length 1.5 m
Mounting Thread Universal 8-32 / M4 x 0.7 Tap, Post Not Included
Compatible Consoles PM400, PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101R, PM101U, PM103, PM103A, PM103E, PM103U, and PM100USB
  • For complete specifications, please see the Specs tab.
  • The working range provided is for lasers with a repetition rate of 80 MHz. Because the peak power and peak power density are dependent on the average power and repetition rate of the laser, the upper limit to the working average power range will be lower for lower repetition rates. Exceeding the maximum average power may result in damage to the sensor's optical components.
  • The specified damage threshold is for objectives with NA > 0.5. The damage threshold will be lower for NA < 0.5.
  • This specification is for the measured second harmonic generation (SHG) signal.
  • Measured with PM100D console in low bandwidth setting.
  • Measured with PM5020 console in low bandwidth setting.
  • Beam Diameter >1 mm
  • Valid for 24 ± 2 °C
  • The sensor responsivity shown in this plot was calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.

Part Number
Description
Price
Availability
S170C
Customer Inspired! Microscope Slide Power Sensor, 350 - 1100 nm, 10 nW - 150 mW
$1,324.53
Lead Time
S171C
Customer Inspired! Microscope Slide Power Sensor, 400 - 1100 nm, 1 nW - 15 mW
$1,324.53
3 Weeks
NS170C
Microscope Slide Peak Power Sensor for Two-Photon Lasers, 780 - 1300 nm
$2,650.00
3-5 Days

Hide Integrating Sphere Photodiode Power Sensors

Integrating Sphere Photodiode Power Sensors

S142C and S140-BFA Bare Fiber Adapter
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S142C and S140-BFA Bare Fiber Adapter (Sold Separately)
S142C and S120-FC Fiber Adapter
Click to Enlarge
S142C with the S120-FC Fiber Adapter (Included)
  • For Measurements Independent of Beam Shape and Entrance Angle
  • Integrating Sphere Design Acts as a Diffuser with Minimal Power Loss
  • Ø5 mm, Ø7 mm, Ø12 mm, or Ø22 mm Input Sensor Aperture
  • Spheres with Apertures ≤Ø12 mm Include a Removable S120-FC Fiber Adapter (FC/PC and FC/APC)  
  • Fiber Adapters for Terminated and Bare Fiber (See Table Below) are Compatible with Spheres with Apertures ≤Ø12 mm

These Integrating Sphere Photodiode Power Sensors are the ideal choice for power measurements independent of beam uniformity, divergence angle, beam shape, or entrance angle, making them excellent for use with fiber sources and off-axis free space sources. They feature enhanced shielding to avoid electromagnetic interference and an over-temperature alert sensor to warn against damage and measurement errors due to overheating of the sensor.

Our integrating spheres are designed for wavelength ranges from the visible through the NIR. Sensor heads for use between 350 and 2500 nm use a single Ø1" or Ø2" sphere made from Zenith® PTFE and feature a black housing to minimize reflected light around the entrance aperture. These sensors use either a silicon photodiode for detection in the 350 - 1100 nm range or an InGaAs photodiode for detection in the 800 - 1700 nm, 900 - 1650 nm, or 1200 - 2500 nm wavelength range.

The S180C integrating sphere for 2.9 - 5.5 µm uses two connected, gold-plated Ø20 mm spheres, with an entrance port in the first sphere and a port for the MCT (HgCdTe) detector located in the second sphere. Compared to single-sphere designs, the two-sphere configuration improves device sensitivity by minimizing the internal sphere surface area while still effectively shielding the detector from direct illumination. This design reduces the effect of input angle, divergence, and beam shape on the measurement result by effectively shielding the photodiode without the use of a baffle or other shielding mechanism.

S142CL and S145CL Baffle
Click to Enlarge
A baffle on the S142CL and S145CL spheres blocks light from directly hitting the detector.

The integrating spheres with Ø5 mm, Ø7 mm, or Ø12 mm apertures feature large active detector areas, and externally SM1-threaded (1.035"-40) adapters for compatibility with the included S120-FC fiber adapter. Because of the large active detector areas of these sensors, the included S120-FC fiber adapter can be used with FC/PC- or FC/APC-terminated fiber. The externally SM1-threaded adapter can be removed using a size 1 screwdriver to place components closer to the window.

The S142CL and S145CL integrating spheres feature a large Ø22 mm input aperture and a baffle within the sphere which prevents direct illumination of the photodiode. The large aperture and baffle enable measurements of large and divergent beams, such as those emitted from LED and VCSEL light sources. The input face of the detectors have four 4-40 threads for mounting 30 mm cage system components. Additionally, insertion of a second or third port in the sensor head is possible on request, please contact Tech Support for details.

Each sensor is shipped with NIST- or PTB-traceable calibration data. The included data will match the calibration certification of the photodiode used to test the individual sensor. NIST- or PTB-traceable data is stored in the sensor connector. Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-PD for Si sensors, Item # CAL-IRPD for InGaAs sensors, and Item # CAL-MIRPD for extended InGaAs or MCT sensors).

Item #a S140C S142C S142CL S144C S145C S145CL S146C S148C S180C
Sensor Image
(Click the Image
to Enlarge)		 S140C S142C S142CL S144C S145C S145CL S146C S144C Mid-IR Detector
Aperture Size Ø5 mm Ø12 mm Ø22 mm Ø5 mm Ø12 mm Ø22 mm Ø12 mm Ø5 mm Ø7 mm
Wavelength Range 350 - 1100 nm 400 - 1100 nm 800 - 1700 nm 900 - 1650 nm 1200 - 2500 nm 2.9 µm - 5.5 µm
Power Range 1 µW - 500 mW 1 µW - 5 W 10 µW - 5 W 1 µW - 500 mW 1 µW - 3 W 10 µW - 3 W 10 µW - 20 W 1 µW - 1 W 1 µW - 3 W
Detector Type Si Photodiode Si Photodiode with Baffle InGaAs Photodiode InGaAs Photodiode with Baffle InGaAs Photodiode Extended InGaAs Photodiode MCT (HgCdTe)
Photodiode
Linearity ±0.5%
Resolutionb 1 nW 10 nW 1 nW 10 nW 1 nW 10 nW
Measurement
Uncertaintyc,d		 ±3% (440 - 980 nm)
±5% (350 - 439 nm)
±7% (981 - 1100 nm)		 ±3%
(440 - 980 nm)
±5%
(400 - 439 nm)
±7%
(981 - 1100 nm)		 ±5%
Responsivitye
(Click for Plot)
Raw Data
Raw Data
Raw Data
Raw Data
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Integrating Sphere
Material (Size)		 Zenith® PTFE
(Ø1")		 Zenith® PTFE
(Ø2")		 Zenith® PTFE
(Ø1")		 Zenith® PTFE
(Ø2")		 Zenith® PTFE
(Ø1")		 Gold Plating
(Two Ø20 mm Spheres)
Head Temperature
Measurement		 NTC Thermistor 4.7 kΩ
Housing
Dimensions		 Ø45 mm x 30.5 mm 70 mm x 74 mm x 70 mm Ø45 mm x 30.5 mm 70 mm x 74 mm x 70 mm Ø45 mm x 30.5 mm 59.0 mm x 50.0 mm x
28.5
Active Detector Area 3.6 mm x 3.6 mm Ø2 mm Ø3 mm Ø1 mm Ø1 mm 1 mm x 1 mm
Cable Length 1.5 m
Mounting Thread Separate 8-32 and M4 Taps, Posts Not Included Universal 8-32 / M4 Thread, Post Not Included Separate 8-32 and M4 Taps, Posts Not Included Universal 8-32 / M4 Thread, Post Not Included Separate 8-32 and M4 Taps, Posts Not Included Universal 8-32 / M4 Tap, Post Not Included
Aperture Thread Included Adapter with SM1 (1.035"-40) External Thread None Included Adapter with SM1 (1.035"-40) External Thread None Included Adapter with SM1 (1.035"-40) External Thread
Compatible Fiber
Adapters		 S120-FC (Included)
S120-FC2, S120-APC2, S120-APC, S120-SMA, S120-ST, S120-SC, S120-LC, S120-25, and S140-BFA (Not Included)		 None S120-FC (Included)
S120-FC2, S120-APC2, S120-APC, S120-SMA, S120-ST, S120-SC, S120-LC, S120-25, and S140-BFA (Not Included)		 None S120-FC (Included)
S120-FC2, S120-APC2, S120-APC, S120-SMA, S120-ST, S120-SC, S120-LC, S120-25, and S140-BFA (Not Included)
Compatible Consoles PM400, PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101R, PM101U, PM103, PM103A, PM103E, PM103U, and PM100USB
  • For complete specifications, please see the Specs tab.
  • Measured with PM100D console in low bandwidth setting.
  • Beam diameter > 1 mm
  • Uncertainties for S142CL and S145CL are valid at a temperature of 24 °C ± 2 °C.
  • All sensor responsivities shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals except for the S180C. See the S180C responsivity plot to see the NIST-traceable reference points.

Part Number
Description
Price
Availability
S140C
Integrating Sphere Photodiode Power Sensor, Si, 350 - 1100 nm, 1 µW - 500 mW
$818.48
3 Weeks
S142C
Integrating Sphere Photodiode Power Sensor, Si, 350 - 1100 nm, 1 µW - 5 W
$1,135.65
Lead Time
S142CL
Customer Inspired! Large Aperture Integrating Sphere Photodiode Power Sensor, Si, 400 - 1100 nm, 10 µW - 5 W
$1,224.00
Lead Time
S144C
Integrating Sphere Photodiode Power Sensor, InGaAs, 800 - 1700 nm, 1 µW - 500 mW
$961.04
Lead Time
S145C
Integrating Sphere Photodiode Power Sensor, InGaAs, 800 - 1700 nm, 1 µW - 3 W
$1,179.61
Lead Time
S145CL
Customer Inspired! Large Aperture Integrating Sphere Photodiode Power Sensor, InGaAs, 800 - 1700 nm, 10 µW - 3 W
$1,269.90
Lead Time
S146C
Integrating Sphere Photodiode Power Sensor, InGaAs, 900 - 1650 nm, 10 µW - 20 W
$1,179.61
Lead Time
S148C
Customer Inspired! Integrating Sphere Photodiode Power Sensor, Extended InGaAs, 1200 - 2500 nm, 1 µW - 1 W
$987.17
3 Weeks
S180C
Integrating Sphere Photodiode Power Sensor, MCT (HgCdTe), 2.9 - 5.5 µm, 1 µW - 3 W
$4,291.96
3-5 Days

Hide Fiber Photodiode Power Sensors

Fiber Photodiode Power Sensors

S150C and PM100D
Click to Enlarge
PM100D with S150C Sensor and FC Cable
  • For Fiber-Based Optical Power Measurements
  • Compact Sensor Integrated into the Connector
  • Integrated Design for use in the Field and Lab
  • Includes FC/PC Adapter
    • S150C and S151C Sensors also Include SMA Adapter
    • Compatible FC/APC, LC/PC, SC/PC, and ST®* Fiber Adapters Also Available (See Table Below)
  • Compatible with the PM100D, PM100USB, and PM100A Consoles

The S15xC Compact Fiber Photodiode Power Sensor is designed to take power measurements from a wide variety of fiber-coupled sources. The compact sensor, integrated into the power meter connector, features a unique integrated design housing the photodiode sensor, fiber coupling, and NIST- or PTB-traceable data. The fiber adapter included with each sensor can be interchanged easily to accomodate a variety of fiber connectors (see table below).

Each sensor is shipped with NIST- or PTB-traceable calibration data. The included data will match the calibration certification of the photodiode used to test the individual sensor. NIST- or PTB-traceable data is stored in the sensor connector. Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-PD for Si sensors and Item # CAL-IRPD for InGaAs sensors).

*ST® is a registered trademark of Lucent Technologies, Inc.

Item #a S150C S151C S154C S155C
Sensor Image
(Click the Image to Enlarge)

S150C

S151C

S152C

S153C
Wavelength Range 350 - 1100 nm 400 - 1100 nm 800 - 1700 nm
Power Range 100 pW to 5 mW
(-70 dBm to +7 dBm)		 1 nW to 20 mW
(-60 dBm to +13 dBm)		 100 pW to 3 mW
(-70 dBm to +5 dBm)		 1 nW to 20 mW
(-60 dBm to +13 dBm)
Detector Type Si Photodiode InGaAs Photodiode
Linearity ±0.5%
Resolutionb 10 pW (-80 dBm) 100 pW (-70 dBm) 10 pW (-80 dBm) 100 pW (-70 dBm)
Measurement Uncertaintyc ±3% (440 - 980 nm)
±5% (350 - 439 nm)
±7% (981 - 1100 nm)		 ±3% (440 - 980 nm)
±5% (400 - 439 nm)
±7% (981 - 1100 nm)		 ±5%
Responsivityd (Click for Details)
Raw Data
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Coating/Diffuser N/A Absorptive ND (Schott NG3) N/A
Head Temperature Measuremente NTC Thermistor 3 kΩ
Aperture Thread External SM05 (0.535"-40)
Fiber Adaptersf Included (FC and SMA): PM20-FC and PM20-SMA;
Optional: PM20-FC2, PM20-APC2, PM20-APC, PM20-ST,
PM20-SC,PM20-LC, and PM20-25		 Included (FC): PM20-FC;
Optional: PM20-FC2, PM20-APC2, PM20-APC, PM20-SMA, PM20-ST, PM20-SC, PM20-LC, and PM20-25
Compatible Consoles PM400, PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101R, PM101U, PM103, PM103A, PM103E, PM103U, and PM100USB
  • For complete specifications, please see the Specs tab.
  • Measured with PM100D console in low bandwidth setting.
  • For a beam diameter > 1 mm incident on the active area of the detector (i.e. at the detector surface after the light has exited the fiber and passed through any internal optics).
  • All sensor responsivities shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
  • This specification is valid for devices with serial numbers 1203xxx and higher. For older versions, please contact technical support.
  • Because of the large active detector area of these sensors, the included PM20-FC fiber adapter can be used with both FC/PC- and FC/APC-terminated fiber. 

Part Number
Description
Price
Availability
S150C
Compact Fiber Photodiode Power Sensor, Si, 350 - 1100 nm, 100 pW - 5 mW
$356.39
3-5 Days
S151C
Compact Fiber Photodiode Power Sensor, Si, 400 - 1100 nm, 1 nW - 20 mW
$406.28
3-5 Days
S154C
Compact Fiber Photodiode Power Sensor, InGaAs, 800 - 1700 nm, 100 pW - 3 mW
$511.99
3-5 Days
S155C
Compact Fiber Photodiode Power Sensor, InGaAs, 800 - 1700 nm, 1 nW - 20 mW
$586.84
3-5 Days

Hide Internally SM05-Threaded Fiber Adapters

Internally SM05-Threaded Fiber Adapters

These internally SM05-threaded (0.535"-40) adapters mate terminated fiber to our free-space detectors and power sensors, including, but not limited to:

For details on narrow versus wide key connectors, please see our Intro to Fiber tutorial. Please contact Tech Support if you are unsure if the adapter is mechanically compatible.

The PM20-25 ferrule adapter is designed without a locking connector mechanism and accepts fiber patch cables with Ø2.5 mm ferrules for quick power meter measurements.

Item # PM20-FC2 PM20-FC PM20-APC2a PM20-APCa PM20-SMA PM20-ST PM20-SC PM20-LC PM20-25
Adapter Image
(Click the Image
to Enlarge)		 PM20-FC2 PM20-FC PM20-APC2 PM20-APC PM20-SMA PM20-ST PM20-SC PM20-LC PM20-25
Connector Type FC/PC,
2.0 mm Narrow Key		 FC/PC,
2.2 mm Wide Key		 FC/APC,
2.0 mm Narrow Key		 FC/APC,
2.2 mm Wide Key		 SMA ST®b/PC SC/PCc LC/PC Ø2.5 mm Ferrule
Threading Internal SM05 (0.535"-40)
  • The PM20-APC and PM20-APC2 are designed with a 4° mechanical angle to compensate for the refraction angle of the output beam.
  • ST® is a registered trademark of Lucent Technologies, Inc.
  • In certain angle-independent applications, this adapter may also be used with SC/APC connectors.

Part Number
Description
Price
Availability
PM20-FC2
FC/PC Fiber Adapter Cap with Internal SM05 (0.535"-40) Threads, Narrow Key (2.0 mm)
$37.72
3-5 Days
PM20-FC
FC/PC Fiber Adapter Cap with Internal SM05 (0.535"-40) Threads, Wide Key (2.2 mm)
$37.72
3-5 Days
PM20-APC2
FC/APC Fiber Adapter Cap with Internal SM05 (0.535"-40) Threads, Narrow Key (2.0 mm)
$37.27
3-5 Days
PM20-APC
Customer Inspired! FC/APC Fiber Adapter Cap with Internal SM05 (0.535"-40) Threads, Wide Key (2.2 mm)
$37.27
3-5 Days
PM20-SMA
SMA Fiber Adapter Cap with Internal SM05 (0.535"-40) Threads
$37.72
3-5 Days
PM20-ST
ST/PC Fiber Adapter Cap with Internal SM05 (0.535"-40) Threads
$52.28
3-5 Days
PM20-SC
SC/PC Fiber Adapter Cap with Internal SM05 (0.535"-40) Threads
$52.28
3-5 Days
PM20-LC
Customer Inspired! LC/PC Fiber Adapter Cap with Internal SM05 (0.535"-40) Threads
$52.28
3-5 Days
PM20-25
Customer Inspired! Ø2.5 mm Ferrule Adapter Cap with Internal SM05 (0.535"-40) Threads
$37.72
3 Weeks

Hide Internally SM1-Threaded Fiber Adapters

Internally SM1-Threaded Fiber Adapters

These internally SM1-threaded (1.035"-40) adapters mate terminated fiber to any of our externally SM1-threaded components, including a selection of our photodiode power sensors, our thermal power sensors, and our photodetectors.

For details on narrow versus wide key connectors, please see our Intro to Fiber tutorial. Please contact Tech Support if you are unsure if the adapter is mechanically compatible.

The APC adapters have two dimples in the front surface that allow them to be tightened with the SPW909 or SPW801 spanner wrench. The dimples do not go all the way through the disk so that the adapter can be used in light-tight applications when paired with SM1 lens tubes.

The S120-25 ferrule adapter is designed without a locking connector mechanism and accepts fiber patch cables with Ø2.5 mm ferrules for quick measurements with photodetectors or power sensors.

Item # S120-FC2 S120-FC S120-APC2a S120-APCa S120-SMA S120-ST S120-SC S120-LC S120-25
Adapter Image
(Click the Image
to Enlarge)		 S120-FC2 S120-FC S120-APC2 S120-APC S120-SMA S120-ST S120-SC S120-LC S120-25
Fiber Connector Type FC/PC,
2.0 mm Narrow Key		 FC/PC,
2.2 mm Wide Key		 FC/APC,
2.0 mm Narrow Key		 FC/APC
2.2 mm Wide Key		 SMA ST®b/PC SC/PCc LC/PC Ø2.5 mm Ferrule
Threading Internal SM1 (1.035"-40)
  • The S120-APC and S120-APC2 are designed with a 4° mechanical angle to compensate for the refraction angle of the output beam.
  • ST® is a registered trademark of Lucent Technologies, Inc.
  • In certain angle-independent applications, this adapter may also be used with SC/APC connectors.

Part Number
Description
Price
Availability
S120-FC2
FC/PC Fiber Adapter Cap with Internal SM1 (1.035"-40) Threads, Narrow Key (2.0 mm)
$46.33
3-5 Days
S120-FC
FC/PC Fiber Adapter Cap with Internal SM1 (1.035"-40) Threads, Wide Key (2.2 mm)
$46.33
3-5 Days
S120-APC2
FC/APC Fiber Adapter Cap with Internal SM1 (1.035"-40) Threads, Narrow Key (2.0 mm)
$36.18
3-5 Days
S120-APC
Customer Inspired! FC/APC Fiber Adapter Cap with Internal SM1 (1.035"-40) Threads, Wide Key (2.2 mm)
$36.18
3-5 Days
S120-SMA
SMA Fiber Adapter Cap with Internal SM1 (1.035"-40) Threads
$46.33
3-5 Days
S120-ST
ST/PC Fiber Adapter Cap with Internal SM1 (1.035"-40) Threads
$46.33
3-5 Days
S120-SC
SC/PC Fiber Adapter Cap with Internal SM1 (1.035"-40) Threads
$58.21
3-5 Days
S120-LC
LC/PC Fiber Adapter Cap with Internal SM1 (1.035"-40) Threads
$58.21
3-5 Days
S120-25
Customer Inspired! Ø2.5 mm Ferrule Adapter Cap with Internal SM1 (1.035"-40) Threads
$46.33
3-5 Days

Hide Bare Fiber Adapter

Bare Fiber Adapter


Click to Enlarge
Fiber with Ø3 mm Tubing
Inserted into the S140-BFA Adapter
  • Compatible with S140C Series Power Sensors
  • Power Measurements of Bare Fiber Outputs
  • Easy Loading and Positioning of Optical Fiber in V-Groove
  • Supports Fiber with Buffer Diameters from 250 to 450 µm
  • Tight Holding without Fiber Damage by Magnetic Clip
  • Attached by Two M2.5 x 4 mm Cap Screws

Part Number
Description
Price
Availability
S140-BFA
Bare Fiber Adapter for Calibrated Integrating Sphere Power Sensors
$150.87
3-5 Days

Hide Externally SM1-Threaded Slim Photodiode Adapter

Externally SM1-Threaded Slim Photodiode Adapter


Click to Enlarge
SM1 Lens Tube Mounted on an S132C Photodiode Sensor Using an SM1A29 Adapter

The SM1A29 adapter can be attached to our slim photodiode sensors using two setscrews, which are compatible with 0.035" (0.9 mm) hex keys. This allows for mounting SM1-threaded fiber adapters, filters, or other SM1-threaded mechanics or optics to our slim photodiode sensors. The target around the aperture uses the same material as our VRC2 Laser Viewing Card and is sensitive to light between the wavelength ranges of 400 - 645 nm and 800 - 1700 nm.


Part Number
Description
Price
Availability
SM1A29
Customer Inspired! SM1 Thread Adapter for Slim Photodiode Sensors
$49.01
Lead Time

Hide FiberBench Slim Photodiode Mount

FiberBench Slim Photodiode Mount


Click for Details
[APPLIST]
S130C Photodiode Sensor Mounted in FiberBench System Using FBSM Adapter

The FBSM FiberBench Mount enables stable mounting of our slim photodiode sensors into our FiberBench systems. A side-located setscrew with a 0.050" (1.3 mm) hex can be used to lock the sensor in place. The mount has dowel pins for compatibility with FiberBenches and an optical axis height of 0.56" (14.2 mm) to match other FiberBench components. The target around the aperture uses the same material as our VRC2 Laser Viewing Card and is sensitive to light between the wavelength ranges of 400 - 645 nm and 800 - 1700 nm.


Part Number
Description
Price
Availability
FBSM
FiberBench Mount for Slim Photodiode Sensors
$48.69
3 Weeks

Hide Externally SM05-Threaded Compact Slim Photodiode Adapter

Externally SM05-Threaded Compact Slim Photodiode Adapter


Click to Enlarge
P1-630A-FC-1 Fiber with PM20-FC Fiber Adapter Mounted on an S116C Photodiode Sensor Using an SM05A29 Adapter

The SM05A29 adapter can be attached to our compact slim photodiode sensors using two setscrews, which are compatible with 0.05" (1.3 mm) hex keys. This allows for mounting SM05-threaded fiber adapters, filters, or other SM05-threaded mechanics or optics to our compact slim photodiode sensors.


Part Number
Description
Price
Availability
SM05A29
SM05-Threaded Adapter for Compact Slim Photodiode Sensors
$46.10
3-5 Days

Hide Recalibration Service for Photodiode Power Sensors

Recalibration Service for Photodiode Power Sensors

Calibration Service Item # Compatible Sensors
CAL-UVPD S120VC
CAL-PD S116C, S120C, S121C, S170C, S171C, S140C, S142C, S142CL, S150C, S151C, PM16-120, PM16-121, PM16-140
CAL-UVPD2 S130VC
CAL-PD2 S130C, PM16-130, PM160
CAL-NS NS170C
CAL-IRPD S122C, S144C, S145C, S145CL, S146C, S154C, S155C, PM16-122, PM16-144
CAL-IRPD2 S132C
CAL-MIRPD S148C, S180C

Thorlabs offers recalibration services for our photodiode optical power sensors. To ensure accurate measurements, we recommend recalibrating the sensors annually. Recalibration of a single-channel power and/or energy meter console or interface is included with the recalibration of a sensor at no additional cost. If you wish to calibrate one or more sensors with a dual-channel console, each sensor and console calibration service will need to be purchased individually. For more details on these recalibration services, please click the Documents () icons below.

Refer to the table to the right for the appropriate calibration service Item # that corresponds to your power sensor.

Requesting a Calibration
Thorlabs provides two options for requesting a calibration:

  1. Complete the Returns Material Authorization (RMA) form. When completing the RMA form, please enter your name, contact information, the Part #, and the Serial # of each item being returned for calibration; in the Reason for Return field, select "I would like an item to be calibrated." All other fields are optional. Once the form has been submitted, a member of our RMA team will reach out to provide an RMA Number, return instructions, and to verify billing and payment information.
  2. Select the appropriate sensor calibration Item # below, enter the Part # and Serial # of the sensor that requires recalibration, and then Add to Cart. If you would like a console calibrated with your sensor, repeat this process for Item # CAL-PM1 or CAL-PM2 below, entering the console Item # and Serial #. A member of our RMA team will reach out to coordinate the return of the item(s) for calibration. Note that each console calibration Item # represents the cost of calibrating a console alone; if requesting a single-channel console calibration with a sensor calibration, the appropriate discount will be applied when your request is processed. Should you have other items in your cart, note that the calibration request will be split off from your order for RMA processing.

Please Note: To ensure your item being returned for calibration is routed appropriately once it arrives at our facility, please do not ship it prior to being provided an RMA Number and return instructions by a member of our team.


Part Number
Description
Price
Availability
CAL-UVPD
Recalibration Service for S120VC UV-Extended Silicon Photodiode Power Sensor
$193.21
Lead Time
CAL-PD
Recalibration Service for Single-Power-Range Silicon Photodiode Power Sensors
$167.48
Lead Time
CAL-UVPD2
Recalibration Service for S130VC Extended-UV Silicon Photodiode Power Sensor
$229.44
Lead Time
CAL-PD2
Recalibration Service for Dual-Power-Range Silicon Photodiode Power Sensors
$194.83
Lead Time
CAL-NS
Recalibration Service for Second-Order Nonlinear Crystal with Silicon Photodiode Sensor
$335.00
Lead Time
CAL-IRPD
Recalibration Service for Single-Power-Range Germanium or InGaAs Photodiode Power Sensors
$188.88
Lead Time
CAL-IRPD2
Recalibration Service for Dual-Power-Range Germanium or InGaAs Photodiode Power Sensors
$206.69
Lead Time
CAL-MIRPD
Recalibration Service for Extended InGaAs or MCT Photodiode Power Sensors
$337.37
Lead Time

Hide Recalibration of Power & Energy Meter Electronics

Recalibration of Power & Energy Meter Electronics

Calibration Service Item # Compatible Consoles & Interfaces
Single-Channel
CAL-PM1 PM100D, PM100A, PM400, PM100USB,
PM101 Series, PM102 Series, PM103 Series
Dual-Channel
CAL-PM2 PM5020, Previous-Generation PM320E

These recalibration services are for the power and/or energy meter electronics of our consoles and interfaces. To ensure accurate measurements, we recommend recalibrating annually. Recalibration of a single-channel console or interface is included with these sensor recalibration services at no additional cost. If you wish to calibrate one or more sensors with a dual-channel console, each sensor and console calibration service will need to be purchased individually. For more details on these recalibration services, please click the Documents () icons below. 

The table to the upper right lists the power and/or energy meter consoles and interfaces that can be calibrated using the CAL-PM1 and CAL-PM2 recalibration services.

Requesting a Calibration
Thorlabs provides two options for requesting a calibration:

  1. Complete the Returns Material Authorization (RMA) form. When completing the RMA form, please enter your name, contact information, the Part #, and the Serial # of each item being returned for calibration; in the Reason for Return field, select "I would like an item to be calibrated." All other fields are optional. Once the form has been submitted, a member of our RMA team will reach out to provide an RMA Number, return instructions, and to verify billing and payment information.
  2. Select the appropriate Item # below, enter the Part # and Serial # of the item that requires recalibration, and then Add to Cart. If you would like to calibrate one or more sensors with your console, repeat this process for the appropriate sensor recalibration service above, entering the console Item # and Serial #. A member of our RMA team will reach out to coordinate return of the item(s) for calibration. Note that each console calibration Item # represents the cost of calibrating a console alone; if requesting a single-channel console calibration with a sensor calibration, the appropriate discount will be applied when your request is processed. Should you have other items in your cart, note that the calibration request will be split off from your order for RMA processing.

Please Note: To ensure your item being returned for calibration is routed appropriately once it arrives at our facility, please do not ship it prior to being provided an RMA Number and return instructions by a member of our team.


Part Number
Description
Price
Availability
CAL-PM1
Recalibration of Single-Channel Power and/or Energy Meter Electronics
$78.80
Lead Time
CAL-PM2
Recalibration of Dual-Channel Power and Energy Meter Electronics
$210.12
Lead Time