The ILX Lightwave CSM-39010 is a precision 100 mA current source module engineered for laser diode characterization and control in research, development, and production test environments. This modular unit installs into compatible ILX Lightwave mainframes—such as the LDC-3900 Modular Laser Diode Controller—and delivers stable, low-noise current output to sensitive optical and electronic components.
## Technical Specifications
• **Output Current:** Up to 100 mA
• **Compliance Voltage:** 7 V maximum (fixed)
• **Short-Term Stability (1 hour):** < 10 ppm
• **Long-Term Stability (24 hours):** < 50 ppm
• **Temperature Coefficient:** < 50 ppm/°C
## Key Features
• Fixed 7 V compliance voltage ensures predictable headroom for laser diode bias networks
• Sub-50 ppm stability over 24 hours minimizes drift during extended measurement campaigns
• Service-free modular design integrates directly into LDC-3900 bays without external cabling complexity
• Photodiode feedback inputs via 9-pin D-connector (pins 6 and 7) or dedicated BNC connector support closed-loop control architectures
• Adjustable photodiode reverse bias (0–5 V) enables flexible detector biasing strategies
## Typical Applications
• Laser diode dynamic and static characterization
• Optical power monitoring and stabilization
• Production burn-in and reliability testing of optoelectronic devices
• Bench-level component evaluation requiring precision current control
## Compatibility & Integration
The CSM-39010 occupies one of four available bays in the LDC-3900 controller and is field-interchangeable with other compatible current source and temperature control modules. Laser diode connections are made via the rear-panel 9-pin D-connector.
**Note:** This product is obsolete and no longer manufactured or supported by ILX Lightwave. Replacement units, service, repair, and calibration are unavailable from the original manufacturer.
