Products HomeNonlinear Crystal Ovens
- Ovens for Controlling the Temperature of Nonlinear Crystals
- Holds Crystals at Temperatures from Ambient to 200 °C
- Pin Alignment Features Allow for Easy Crystal Installation
- Compatible with Thorlabs' TC300B Temperature Controller
NLCH1
Oven for Nonlinear Crystals up to 15 mm Long
NLCH2
Oven for Nonlinear Crystals up to 30 mm Long
An NLCL8 noncritical phase matching crystal is mounted in an NLCH2 oven to maintain its temperature for phase matching.
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| Key Common Specificationsa | ||
|---|---|---|
| Operating Temperature | Ambient to 200 °C | |
| Clear Aperture | Ø0.18" (4.6 mm)b | |
| Beam Height | 1.00" (25.4 mm) | |
| Input Voltage | 24 V Max | |
| Heater Power | 15 W Max @ 24 V | |
| Electrical Connection | 6-Pin Female Hirosec | |
| Recommended Controller | TC300Bd | |
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Figure 1.1 The cover of an NLCH2 oven is shown being removed, revealing the interior of the oven with an NLCL8 crystal mounted on the heater deck.
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Figure 1.2 An NLCH2 nonlinear crystal oven is shown operated by the TC300B Temperature Controller.
Features
- Internal Temperatures Controllable from Ambient to 200 °C
- Designed for Drop-In Compatibility for Thorlabs' Mounted LBO Nonlinear Crystals
- Options for Mounting Crystals up to 15.0 mm or 30.0 mm Long
- 8-32 (M4 x 0.7) Mounting Holes on Bottom of Oven
- Compatible with our 30 mm Cage Systems
- Ø0.18" (4.6 mm) Clear Aperture in Removable SM05-Threaded (0.535"-40) Plug
Thorlabs' Nonlinear Crystal Ovens are designed for controlling the temperature of our LBO (Lithium Triborate or LiB3O5) Second Harmonic Generation (SHG) and Sum Frequency Generation (SFG) Crystals. Each oven has a Ø0.18" (4.6 mm) clear aperture through which incident and generated light can pass. The housings of our LBO crystals are designed to provide drop-in compatibility with the ovens; two pins on the oven's heater deck fit into holes in the LBO crystal's housing to ensure proper alignment. The NLCH1(/M) oven accepts our mounted crystals with lengths up to 15.00 mm, while the NLCH2(/M) oven fits crystals up to 30.00 mm long.
A temperature controller, such as our TC300B temperature controller which is sold below, is required for controlling the oven temperature via the 6-pin Hirose connector on the oven's housing, as shown in Figure 1.2. A 6-pin male-to-male Hirose cable is included with each oven; we also offer the HR10AD1 6-pin Hirose cable with breakout box (sold separately below) for connecting to other temperature controllers or custom wiring. We do not recommend using our previous generation TC300 temeprature controller, as its temperature stability is insufficient for the sensitivity of our crystals.
Temperature alters the refractive index of materials, and the longer the path through the material, the greater the impact of this altered refractive index on phase matching conditions. Under phase matched conditions, the efficiency of the SHG process is improved, enabling the intensity of the SHG and SFG light to increase exponentially with propagation distance through the crystal. Our LBO crystals are significantly longer than our β-BBO crystals, so the temperature of the crystal plays a significant role in the nonlinear process due to the increased phase matching sensitivity. This dependence is especially pronounced in noncritical phase matching (NCPM) crystals such as Item #s NLCL8 and NLCL9, but we recommended using these ovens to optimize SHG and SFG efficiency for all of our LBO nonlinear crystals. For more information on SHG, SFG, and our LBO nonlinear crystals, please see the full web presentation for the crystals.
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Figure 1.3 Four screws on the top of the oven can be removed to open the cover and access the heater deck.
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Figure 1.4 Two interior screws can be removed to mount a nonlinear crystal in the ovens.
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Figure 1.5 Each removable SM05-threaded plug has a Ø0.18" aperture.
To mount a crystal in an oven, first take off the oven's cover by removing the four M2.5 x 0.45 cap screws shown in Figure 1.3 using a 2.0 mm (5/64") hex key. Then remove the two M2.5 x 0.45 cap screws inside the oven (shown in Figure 1.4). Align the holes in the crystal mount with the pins in the oven, and secure the mount in place using the two previously removed cap screws.
Each oven features four 4-40 threaded holes on the front and back faces, providing compatibility with our 30 mm Cage Systems for easy incorporation into an optical path. The ovens can be mounted directly to our PY005(/M) 5-Axis Stage via the central #8 (M4) counterbore and two dowel pin holes on the stage (dowel pins not included). The entrance and exit faces of each oven contain a plug (shown in Figure 1.5) that can be removed with an SPW908 spanner wrench to expose an SM05-threaded hole, expanding the aperture to Ø1/2". Users can also use custom plugs or add windows mounted in SM05 lens tubes at the entrance and exit apertures.
| Specifications | ||
|---|---|---|
| Item # | NLCH1(/M) | NLCH2(/M) |
| Compatible Crystal Lengths | Up to 15.00 mma | Up to 30.0 mma,b |
| Operating Temperature | Ambient to 200 °C | |
| Clear Aperture | Ø0.18" (4.6 mm) | |
| Beam Height | 1.00" (25.4 mm) | |
| Input Voltage | 24 V Max | |
| Heater Power | 15 W Max @ 24 V | |
| Heater Resistance | 38.4 Ω | |
| Electrical Connection | 6-Pin Female Hirosec | |
| Dimensions (H x W x D) | 1.87" x 2.51" x 1.95" (47.4 mm x 63.8 mm x 49.5 mm) |
1.87" x 2.51" x 2.50" (47.4 mm x 63.8 mm x 63.5 mm) |
| Weight | 0.22 kg | 0.27 kg |
| Recommended Controller | TC300Bd | |
| Recommended Settings for the TC300B Controller | |
|---|---|
| Setting Name | Setting Value |
| Thermistor Type | NTC1 |
| Thermistor Beta Value | 3976 K |
| R0 | 10 kΩ |
| T0 | 25 °C |
| Temp Resolution Setting | High Resolution |
| Temperature Max | 200 °C |
| Sample PID Configurationa | P: 0.06 A/K, I: 16.75 A/K⋅s, D: 4.18 A⋅s/K |
NLCH1(/M) and NLCH2(/M) Nonlinear Crystal Ovens
6-Pin Hirose Connector
| Pin | Assignment |
|---|---|
| 1 | Heater Input |
| 2 | Heater Input Return |
| 3 | Not Connected |
| 4 | Thermistor Input (+) |
| 5 | Thermistor Input Ground |
| 6 | Not Connected |
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Figure 4.1 Nonlinear Crystal Oven and Included Cable
Shipping List
Item # NLCH1(/M) or NLCH2(/M) Includes:
- Nonlinear Crystal Oven
- HR10CAB1 6-Pin, Male-to-Male Hirose Cable, 3 m Long
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Figure G1.1 An NLCL1 nonlinear crystal is mounted in an NLCH1 oven (cover removed) for temperature control.
- Heating from Ambient Temperature to 200 °C
- Drop-In Compatibility for Thorlabs' LBO Nonlinear Crystals
- Ø0.18" (4.6 mm) Clear Aperture in Removable SM05-Threaded (0.535"-40) Plug
- One HR10CAB1 3 m Long, Male-to-Male Hirose Cable Included with Each Oven
- Requires a Temperature Controller Such as our TC300B Controller (Sold Separately Below)
The NLCH1(/M) and NLCH2(/M) Nonlinear Crystal Ovens are designed to provide temperature control and stability for nonlinear crystals with lengths up to 15.00 mm long or up to 30.00 mm long, respectively. When mounting a Thorlabs' LBO nonlinear crystal in the oven, pin holes in the crystal's housing mate with pins on the oven's heater deck to simplify alignment. To mount a crystal in the oven, first remove the four M2.5 x 0.45 cap screws using a 2.0 mm hex key to remove the cover. Then remove the two M2.5 x 0.45 cap screws inside the oven and align the holes in the crystal mount with the pins in the oven and fasten using the two previously removed cap screws. An example of an NLCL1 crystal mounted in the NLCH1 oven is shown in Figure G1.1.
Each oven features four 4-40 threaded holes on the front and back faces, providing compatibility with our 30 mm Cage Systems for easy incorporation into an optical path. The ovens can be mounted directly to our PY005(/M) 5-Axis Stage via two of the Ø0.13" (3.2 mm) dowel pin holes on the bottom side of the oven (dowel pins not included) and the #8 (M4) central counterbore on the stage. The entrance and exit faces of each oven contain a plug that can be removed with an SPW908 spanner wrench to expose an SM05-threaded hole. The included plugs can be replaced with windows mounted in SM05 lens tubes or other user-customized, SM05-threaded components.
The ovens require a temperature controller such as our TC300B temperature controller (sold below) in order to operate, using the included 6-pin Hirose cable.
Zoom| Key Specificationsa | |
|---|---|
| Output Power per Channel | 48 W (Max) |
| Output Current per Channel | 2 A (Max) |
| Output Voltage per Channel | 24 V (Max) |
| Temperature Setting Range | -200 to 400 °Cb |
| Set Point Resolution | 0.1 °C / 0.001 °Cc |
| Temperature Stability | ±0.1 °C |
| Output Connector Type | Hirose HR10A-7R-6S(73) |
| USB Interface | USB 2.0 Type-B |
| Power Supply | 100 - 240 VAC, 50 - 60 Hz, 165 VA Max |
| Operating Temperature | 0 - 40 °C |
| Storage Temperature | -15 - 65 °C |
| Dimensions (H x W x D) | 86.6 mm x 154.3 mm x 327.8 mm (3.41” x 6.07” x 12.91”) |
| Weight | 1.7 kg |
- Control Temperature from -200 °C to 400 °C
- Run Standalone or via Software
- Programmable PID with Auto-Tuning Functionality
The TC300B Heater and Thermoelectric Cooler (TEC) Temperature Controller is a two-channel benchtop controller intended for use with resistive heating elements and thermoelectric cooler devices rated up to 48 W. It can be used to provide temperature control from ambient to 200 °C for the nonlinear crystal ovens above. User-programmable maximum temperature and current/voltage limits protect the connected heating element from being overheated or over driven. Other safety features include an Open Sensor Alarm that will shut down the driver if the temperature sensing element is missing or becomes disconnected.
Capable of standalone operation from a simple keypad interface, this controller can also be connected to and controlled from a PC using the included USB Type-B cable and our TC300B Software, LabVIEW®* drivers, LabWindows drivers, or a simple command-line interface from any terminal window.
See the full web presentation for more information on the features of the TC300B controller.
*LabVIEW® is a registered trademark of National Instruments Corporation.
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Figure G3.1 The ports of the HR10AD1 breakout box are labeled with pin numbers. Blank labels are also provided for custom pin assignments.
- Two Oven-Compatible Hirose Cable Options for Replacement or Customization
- Item # HR10CAB1: 3.0 m (9.84') Long Male-to-Male Cable (Included with Ovens)
- Item # HR10AD1: 1.8 m (5.90') Long 6-Pin Male Hirose to Breakout Box Cable
- Compatible with:
Thorlabs offers two cables that are compatible with our NLCH1(/M) and NLCH2(/M) nonlinear crystal ovens. One HR10CAB1 male-to-male Hirose cable is included with each oven for connecting to the TC300B temperature controller. For custom wiring, the HR10AD1 Cable with Breakout Box (not included with the ovens) allows six bare wires to be connected to a six-pin Hirose connector without the need for soldering. To aid in pinout identification, each port is labeled with the pin number corresponding to the male Hirose connector, as shown in Figure G3.1. Figures G3.2 and G3.3 show the relationship between the six colored wires and the pins in the connector, allowing the cut cable to be incorporated into a variety of custom applications where the breakout box is unsuitable. Note that the wires in these cables cross over the length of the cable, so the insulation color should be used for pin identification.
In addition, blank labels are provided next to each pin number for custom pin assignment information to be added. A graphite pencil is recommended for filling in the blank labels, as the markings can be removed using a standard rubber eraser if the pin assignments are changed.
Ovens for LBO Nonlinear Crystals