The Thorlabs LDC8005 is a single-slot laser diode current control module for the PRO8000 chassis, delivering precise current and temperature management for stable laser operation. It combines 16-bit current setting resolution with exceptional stability—current drift under 2 µA over 24 hours and temperature stability better than 0.002 °C—making it suitable for applications requiring minimal drift and high accuracy. The module operates in Constant Current and Constant Power modes, with dual-level protection via hardware and software current limits, soft start, and interrupt safeguards.
Technical Specifications
Current Control
• Current range: 0 to ±500 mA
• Current setting resolution: 16-bit (1 part in 65,000)
• Current setting accuracy (full scale): ±0.05%
• Current measurement resolution: 15 µA
• Current drift: < 2 µA over 24 hours (minimum)
• Noise (10 Hz to 10 MHz, RMS): < 5 µA
• Frequency bandwidth (3 dB): DC to 100 kHz, DC to 200 kHz
• Rise/fall time: < 4 µs (typical)
• Analog modulation input: Yes, 10 kΩ input impedance
• Photo current range adjustment: 0 to 5 mA
Temperature Control
• Temperature control range (semiconductor sensor): −12.375 to 90.000 °C
• Temperature control range (thermistor): 5 Ω to 20 kΩ and 50 Ω to 200 kΩ
• Temperature stability: 5 V
• Operating modes: Constant Current (CC), Constant Power (CP)
• Hardware current limit: Manually set absolute limit
• Software current limit: Programmable
• Monitor diode current limit: Programmable
• Additional protection: Soft start, interrupt protection, interlock control
– Compatibility & Integration
Designed for single-slot installation in PRO8000 series chassis. Integrates with complementary TED8000 temperature controller modules supporting TEC current ranges of ±2 A/16 W, ±4 A/32 W, and ±8 A/64 W. Supports AD590, AD592, and LM335 thermistor sensors; Pt 100 and Pt 1000 available upon request.
