Laser Diode Controller, 100/200/500mA, 10V, 32W TEC, USB & GPIB

The LDC-3726 Laser Diode Controller combines a precision current source with a thermoelectric temperature controller. The integrated three range current source provides high stability output with maximum output currents of 100 mA/200 mA/500mA.
Multiple levels of laser diode protection include slow start, adjustable current limit and compliance voltage, intermittent contact protection, and output shorting relays. In addition, an integrated TEC interlock will shut off laser current if a user defined temperature range is exceeded. The integrated 32 W thermoelectric temperature controller will typically achieve temperature stability within ±0.002°C.
For automated testing applications in an R&D or production environment, remote operation is easily accomplished through the GPIB/IEEE-488 or USB remote interface. LIV testing commands are built in to the instrument firmware. For virtual instrument programming, LabVIEW® intstrument drivers are available for download.
We offer a wide variety of precision laser diode mounts with plug and play compatibility with our laser diode instrumentation.
Specifications
- Laser Current0.5 A
- Laser Compliance Voltage10 V
- TE Current Range-4.00 to +4.00 A
- TE Voltage Range-8.00 to +8.00 V
- TE Output Power32 W
- Temperature Coefficient<50 ppm/°C
- Temperature Range-100 to +200°C
- Computer InterfacesUSB and GPIB
- Power Requirements100-120 VAC / 220-240 VAC; 500W; 50-60 Hz
- Laser Current Resolution10 µA
- Laser Current Accuracy±(0.025% SP ± 0.01% FS) (Unmodulated)
- Current Output 24 h Stability<40 ppm
- Current Output 1 h Stability<20 ppm
- External Modulation High BandwidthDC to 1 MHz
- External Modulation Low BandwidthDC to 15 kHz
- Laser Output Noise/Ripple Low Bandwidth2 µA (with LNF-320)
- Laser Output Noise/Ripple High Bandwidth10 µA
- Forward Voltage Accuracy±0.1% of FS
- Forward Voltage Resolution50 mV
- TEC Current Limit Accuracy±0.025 A
- TEC Current 24h Stability±0.002 ºC
See Tech Note TN#5910C-1 - TEC Current 1h Stability±0.001 ºC
See Tech Note TN#5910C-1 - TEC Ripple/Noise (rms)<1.0 mA
- Photodiode Current Accuracy±2 µA
- Photodiode Current Range5 to 5000 µA
- Photodiode Reverse Bias0 to 5V
- Weight11.93 kg
- Operating Temperature10 to 40°C
- Operating Humidity<85% relative, non-condensing
Resources & Downloads
Manuals
LDC-37X6 Laser Diode Controller User Manual(6.5 MB, PDF)
Software
LDC-37X6 LabVIEW Drivers Version 1.1(440.1 kB, ZIP)
Application Notes
Controlling Temperatures of Laser Diodes Thermoelectrically(487.7 kB, PDF) Protecting Your Laser Diode(2.3 MB, PDF) Optimizing TE Drive Current(315.9 kB, PDF) Laser Diode Characteristics Overview(392.5 kB, PDF) Differences Between Threshold Current Calculations(1.5 MB, PDF)
Literature
Telecom Data Brochure(4.9 MB, PDF) LDC-3726 Laser Diode Controller Brochure(862 kB, PDF) Pinout Diagrams for CC-305S and CC-505S Cables(88.5 kB, PDF)
Videos
Technical Notes
LDC-37X6 Laser Protection MKS Technical Note(1.5 MB, PDF) LDT-5900C and LDC-37X6 Series Temperature Stability Technical Note TN#5910C-1(1.9 MB, PDF)
Other
MKS EU ROHS3 - LDC37X6 Series(264 kB, PDF)
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