The ILX Lightwave CSM-39100 is a 4-channel laser diode current source module engineered for precision control within the LDC-3900 Modular Laser Diode Controller mainframe. Each channel delivers up to 1000 mA of stable, low-noise current with photodiode feedback control and constant current modes. The module features fully isolated outputs, adjustable current limiting, and modulation input capability. Calibration data is stored locally on the module, with front-panel and GPIB-based calibration procedures supported. Its rear-loading design enables hot-swap interchangeability with other LDC-3900 modules, allowing configurations of up to four source/TEC/combination modules per system.
## Technical Specifications
• **Output Current:** Up to 1000 mA per channel
• **Channels:** 4 independent channels
• **Control Modes:** Photodiode feedback, constant current (CC)
• **Modulation Input:** Available
• **Current Limit:** Adjustable
• **Output Bandwidth:** Adjustable
• **Isolation:** Fully electrically isolated from other mainframe modules
• **Interface:** GPIB/IEEE-488.2 for remote programming and readout
• **Calibration:** Closed-case with onboard data storage; local and remote procedures supported
## Key Features
• High-stability, low-noise current delivery for demanding laser diode applications
• Modular architecture supports mixed configurations: current sources, TEC controllers, and hybrid modules
• Independent channel isolation eliminates crosstalk in multi-channel setups
• Flexible save/recall of operating parameters via LDC-3900 front panel
• Laser enable functionality for safe device operation
## Typical Applications
Research and development of laser systems, production laser diode characterization, and precision current sourcing in photonics test environments.
## Compatibility & Integration
Designed exclusively for the LDC-3900 mainframe. Compatible with all LDC-3900 current source, TEC, and combination modules. Rear-loading module bay configuration. Note: Product discontinued by manufacturer; support typically available for three years from discontinuation date.
