Mode-Conditioned Light Sources
![](https://www.thorlabs.de/Images/GuideImages/13156_ModeConditionedSource_1.jpg)
- Produces Flat Modal Profile at 470 nm or 625 nm
- Ø105 µm or Ø200 µm Core Options for Fiber-Coupled Output
MCS101
625 nm, Ø105 µm Core
Connecting a Compatible Patch Cable Does Not Disrupt the Flat-Top Profile of the Mode-Conditioned Source
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Features
- Flat-Top Profile for Equilibrium Modal Distribution
- FC/PC Fiber-Coupled Output
- Easily Adjustable Output Power
- Includes DS15 Power Supply
Thorlabs' Mode-Conditioned Light Sources are fiber-coupled LED sources that have an output with a flat-top profile in the far field. Common applications include the testing of multimode fused fiber components as well as verification of modal behavior in fiber-based setups. Standard fiber-coupled LED sources can have a range of output profiles that are usually not uniform and vary from source to source. This can be dependent on emitter orientation, alignment with fiber tip, and connector assembly. These mode-conditioned sources have been engineered to distribute light evenly into all transverse modes, resulting in an equilibrium modal distribution at the output. The front panel includes an adjustment knob to control the power and an output port that accepts 2.2 mm wide-key FC/PC connectors. A DS15 15 V power supply with a location-specific plug is included with each device.
See the tables below for 1 m long patch cables verified to work with each item #. Longer patch cables will not affect the overall output distribution, but will reduce the throughput slightly due to fiber attenuation.
Item # | MCS102 | MCS104 | MCS101 | MCS103 |
---|---|---|---|---|
LED Wavelength | 470 nm | 470 nm | 625 nm | 625 nm |
Bandwidth (FWHM) | 20 nm | 20 nm | 15 nm | 15 nm |
Maximum Intensity at the Exit Port |
>0.1 mW | >0.4 mW | >0.1 mW | >0.4 mW |
Typical Output Profile (Click to View Graph) | ![]() Click Here for Raw Data |
![]() Click Here for Raw Data |
![]() Click Here for Raw Data |
![]() Click Here for Raw Data |
95% Intensity Clip Angular Span | ±7.35° (Minimum) | |||
95%/50% Intensity Clip Bandwidth Ratio | >0.65 | |||
Standard Deviation within 95% Intensity Bandwidth Region | <1.5% | |||
Exit Port Bulkhead | FC/PC, 2.2 mm Wide Key | |||
NA | 0.22 | |||
Core Diameter | 105 µm | 200 µm | 105 µm | 200 µm |
Operating Temperature (Non-Condensing) | 0 to 40 °C | |||
Storage Temperature | -40 to 70 °C | |||
Risk Groupa | RG2 | RG2 | RG0 | RG0 |
Compatible Patch Cablesb | M43L01, M18L01 | M122L01, M36L01, M91L01 | M43L01, M18L01 | M122L01, M36L01, M91L01 |
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Item # | LED Wavelength |
95% Intensity Clip Angular Span |
Typical Output Profile (Click to View Graph) |
Maximum Intensity at the Exit Port |
Exit Port Bulkhead |
NA | Core Diameter |
Compatible Patch Cablesa | |
---|---|---|---|---|---|---|---|---|---|
MCS102 | 470 nm | ±7.35° (Minimum) | ![]() Click Here for Raw Data |
>0.1 mW | FC/PC, 2.2 mm Wide Key |
0.22 | 105 µm | M43L01 FC/PC to FC/PC M18L01 FC/PC to SMA |
|
MCS104 | 470 nm | ±7.35° (Minimum) | ![]() Click Here for Raw Data |
>0.4 mW | FC/PC, 2.2 mm Wide Key |
0.22 | 200 µm | M122L01 FC/PC to FC/PC M36L01 FC/PC to SMA (Low OH) M91L01 FC/PC to SMA (High OH) |
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Item # | LED Wavelength |
95% Intensity Clip Angular Span |
Typical Output Profile (Click to View Graph) |
Maximum Intensity at the Exit Port |
Exit Port Bulkhead |
NA | Core Diameter |
Compatible Patch Cablesa | |
---|---|---|---|---|---|---|---|---|---|
MCS101 | 625 nm | ±7.35° (Minimum) | ![]() Click Here for Raw Data |
>0.1 mW | FC/PC, 2.2 mm Wide Key |
0.22 | 105 µm | M43L01 FC/PC to FC/PC M18L01 FC/PC to SMA |
|
MCS103 | 625 nm | ±7.35° (Minimum) | ![]() Click Here for Raw Data |
>0.4 mW | FC/PC, 2.2 mm Wide Key |
0.22 | 200 µm | M122L01 FC/PC to FC/PC M36L01 FC/PC to SMA (High OH) M91L01 FC/PC to SMA (Low OH) |