20 Amp Laser Diode Controller, ILX Model LDC-37620

ILX Lightwave model: LDC-37620
These LDC-37620 laser diode controllers with integrated current source and TEC temperature controller are high power instruments which offer output current ranges up to 20 Amps. These units provide proven high power laser protection. They offer both GPIB and USB interface. Set and view current from the intuitive front panel, or control the unit remotely. The LDC-37620 High Power Laser Diode Controller is designed as a current source specifically tailored to high power single-emitter laser diodes. Ideal for R&D or manufacturing testing, precision low noise current is delivered to the laser, with four-wire voltage measurement allowing for monitoring and control of laser voltage, LIV testing, and laser qualification testing setups. ILX Lightwave's internal testing and protection standards ensure protection for high power single­ emitter lasers under abnormal operation conditions such as intermittent contact or severe power spikes. These standards have led to advanced protection features like clamping current limits, even under modulated conditions.

The LDC-37620 was developed to allow for rapid onboard LIV testing of high power laser diodes with low noise and precision forward voltage measurement. An adjustable 0V to SV photodiode reverse bias voltage ensures linear measurements and fast conversion speed. Accurate forward voltage measurements are maintained during high current output and long cable use through a four-wire measurement system. Remote LIV commands and on-board memory for collected data allow for automated LIV data collection, saving time and ensuring systematic testing and instrument operation.
The front panel of the LDC-37620 was designed for ease of use and readability. The front panel features two large 7-segment displays, each of which also has an integrated dot matrix display. Instrument controls are grouped by mode and function to allow for easy setup. The displays allows for easy viewing of multiple parameters including laser diode current, laser diode voltage, photodiode measurement, measured temperature, set temperature, TEC current, and TEC voltage. Each display can be easily configured to display the most relevant measurements in your application.

Specifications and Key Features:
- GPIB Interface
- High Power 20 Amp Current Range
- Integrated TEC Controller
- Output Current Range: 0 - 20 A
- Output Current Accuracy: ± 0.1% of SP± 10 mA
- Laser Output Compliance Voltage: 0 - 4 V
- Current Output Long-Term Stability: (24 h) <100 ppm FS
- Current Output Short-Term Stability: (1 h) <50 ppm FS
- Laser Output Noise/Ripple: (rms) Lo BW 5 mA
- Output Current Resolution: 1 mA
- TE Current:
- TEC Short-Term Stability: (1 h)
- Output Power: 128 W
- PD Measurement Range: 5 to 10000 uA
- PD Setpoint Accuracy: +/- 0.05 %
- PD Reverse Bias Control: 0 to -5V User Settable