The ILX Lightwave LDT-5525 is a precision microprocessor-driven thermoelectric controller engineered for laser diode and optoelectronic component testing. It maintains exceptional temperature stability across a wide operating range, delivering ±0.2°C setpoint accuracy and <±0.004°C short-term stability over one hour. The controller stabilizes laser wavelength and optical power through intelligent thermal management, supporting three independent operating modes: Constant Temperature, Constant Resistance, and Constant Current.
Technical Specifications
Temperature Control
• Operating range: –99°C to 199°C
• Setpoint resolution: 0.1°C
• Setpoint accuracy: ±0.2°C
• Short-term stability (1 hour): <±0.004°C
• Long-term stability (24 hours): 6 V DC @ 4 A
• Output ripple/noise: <1 mA rms
Current Limit
• Range: 0–4.0 A
• Accuracy: ±50 mA
– Key Features
• Supports NTC thermistors (2-wire), IC sensors (AD590/LM335), and RTD sensors with external converter
• Usable thermistor resistance range: 25–450,000 Ω
• Thermistor sensing current selectable at 10 µA or 100 µA
• Two-point calibration for IC sensors; Steinhart-Hart 2-constant calibration for thermistors
• Analog output proportional to sensor measurement
• USB 2.0 interface available on LDT-5500B Series models
– Typical Applications
• Laser diode wavelength and power stabilization in research and development
• Optoelectronic component thermal characterization
• Manufacturing test environments requiring sub-0.01°C long-term drift
– Compatibility & Integration
Optional rack mounting kits (RM-134 single, RM-135 dual) support standard installations. Temperature-controlled laser diode mounts, interconnect cables, calibrated and uncalibrated thermistors, and RTD converter modules are available as accessories.
