ILX Lightwave LDC-3916338 Laser Diode Driver Module

The ILX Lightwave LDC-3916338 is a precision laser diode driver module that delivers stable, accurate current sourcing for laser diodes in research, development, and manufacturing environments. This modular component integrates with ILX Lightwave LDC-3908 and LDC-3916 mainframe controllers to provide demanding laser control with advanced protection and measurement capabilities.

Technical Specifications

• Output current range: 0–3000 mA (0–3 A)


• Setpoint resolution: 80 µA


• Setpoint accuracy: ±0.1% of full scale


• Compliance voltage: 4.5 V (adjustable limit)


• 24-hour stability: 75 ppm FS


• 1-hour stability: 50 ppm FS Laser Current Measurement


• Range: 0–3000 mA


• Resolution: 0.01 mA Modulation Performance


• External modulation bandwidth (high): 0.6 MHz


• External modulation bandwidth (low): 30 kHz


• Large-signal frequency response (3 dB): ≥600 kHz Environmental


• Operating temperature: 0°C to 40°C


• Storage temperature: −40°C to +70°C


• Humidity: 20–85%, non-condensing

Key Features

• Adjustable compliance voltage limiting


• Intermittent contact protection


• Slow-start and slow turn-on control


• Shorting circuit protection


• 4-wire voltage measurement for precise forward voltage characterization


• Current limit independent of device voltage drop

Interfaces & Control Remote operation via GPIB/IEEE-488 (24-pin) or RS-232 serial (9-pin D-sub). Power requirements: 50–60 Hz, selectable 120 V / 220 V / 240 V (+6%, −10%).

Compatibility & Integration Directly compatible with LDC-3908 and LDC-3916 mainframe controllers. Typical LDC-3916 system dimensions: 133 mm × 482 mm × 653 mm; weight approximately 41 kg with modules installed.