The ILX Lightwave LDX-36070-30 is a high-power laser diode driver delivering 70 A in continuous wave (CW) mode and 160 A in quasi-continuous wave (QCW) mode. Designed for demanding scientific and industrial laser systems, this instrument provides precision current control with ±(0.1% of setting + 70 mA) accuracy and sub-100 ppm full-scale stability over one hour. The driver outputs 30 V compliance voltage and supports hard pulse operation from 40 µs to 2 s pulse widths at repetition rates up to 1000 Hz.
## Technical Specifications
**Laser Diode Current Control**
• Output current (CW): 70 A
• Output current (QCW): 160 A
• Minimum drive requirement: > 10 A
• Setpoint resolution: 10 mA
• Setpoint accuracy: ±(0.1% of setting + 70 mA), ±(0.1% of FS + 80 mA)
• 1-hour current stability: ±(0.01% of setting + 7 mA) per hour, < 100 ppm FS
• Output noise/ripple: < 70 mA RMS
• Temperature coefficient: < 50 ppm FS/°C
**Output Characteristics**
• Laser compliance voltage: 30 V
• Pulse width range: 40 µs to 2 s
• Duty cycle: 0.5% to 20%
• Pulse repetition rate: 0.1 to 1000 Hz
• Rise/fall time: < 20 µs
**Measurements and Monitoring**
• Forward voltage resolution: 10 mV
• Forward voltage accuracy: +0.05% of 20 mV
• Photodiode monitor current range: 3 µA to 10000 µA
• Photodiode monitor accuracy: +0.1% of FS
• Photodiode reverse bias: 0 to 15 V
• Thermistor input with programmable temperature limit and output disable
## Key Features
• Overcurrent, overvoltage, and thermal protection
• Adjustable voltage and current limits with output shorting relays
• Slow turn-on/off circuits and fast error detection
• Transient protection during power-up and operation
• 5-digit green LED display
• Temperature coefficient stability: < 50 ppm FS/°C
## Typical Applications
• High-power CW and QCW laser diode systems
• Pulsed laser research and development
• Industrial cutting and marking systems
• Advanced scientific instrumentation
## Compatibility & Integration
• Computer interfaces: USB, RS-232, GPIB/IEEE-488
• TTL trigger input and output with adjustable delay
• Power requirement: 200–240 VAC, 50/60 Hz
• Dimensions: 146 mm (H) × 483 mm (W) × 451 mm (D)
• Weight: 16.3 kg
