The ILX Lightwave LDC-3744B is a precision laser diode controller delivering dual-range current output (2 A / 4 A) with integrated 32 W temperature management. Built for research, development, and manufacturing environments, this instrument combines low-noise current sourcing with stable thermal control to ensure reliable laser diode operation across demanding applications.
## Technical Specifications
**Laser Diode Current Source**
• Current Output Ranges: 2 A / 4 A (dual range)
• Operating Modes: Constant Current (CC), Constant Optical Power (CP), High Bandwidth (up to 1 MHz external modulation)
• Analog Modulation: Up to 1 MHz
• Current Accuracy: ±0.05% of Full Scale
• Current Resolution: 40 µA (2 A range); 80 µA (4 A range)
• Current Noise: < 1 mA RMS (typical)
• Stability: ±0.05% per hour (typical)
• Adjustable Current Limit and Compliance Voltage
• Four-Wire Laser Forward Voltage Measurement
**Temperature Controller**
• Integrated Power: 32 W
• Temperature Stability: ±0.004°C
• Sensor Compatibility: Thermistor, IC, and RTD sensors (includes calibrated 10 kΩ thermistor)
• Control Modes: Temperature setpoint and TEC forward voltage measurement
• Temperature Resolution: 0.01°C
• Measurement Accuracy: 0.05°C
## Key Features
• Slow start and output shorting relays for device protection
• Adjustable current limit independent of laser forward voltage
• Intermittent contact protection and reverse voltage protection
• Overtemperature protection with automatic shutdown
• Four-wire measurement capability for accurate forward voltage diagnostics
## Typical Applications
Laser characterization, burn-in testing, optical module assembly, wavelength-stabilized laser systems, and precision frequency-locked laser operation.
## Compatibility & Integration
GPIB/IEEE-488 remote interface for system integration and automated test environments. Analog modulation input enables direct frequency and amplitude control without external signal conditioning.
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