The Newport 8630 Combination Laser Diode Driver (LDD) and Thermoelectric Cooler (TEC) module integrates dual-function control into a single instrument for precise laser diode current management and temperature stabilization. This modular design eliminates the need for separate components, reducing system complexity while delivering high-accuracy output across laboratory and industrial applications. Operation requires a compatible Newport 8000 Series Modular Controller mainframe.
Technical Specifications
Laser Diode Driver Section
• Output current: 0–3000 mA with 0.1 mA resolution
• Current limit: 0–3000 mA
• Output current accuracy: ±(0.02% + 200 µA)
• Forward voltage range: 0.000–5.000 V, 0.1 mV resolution
• Forward voltage accuracy: ±(0.005% + 0.3 mV)
• Compliance voltage: 5 V
• Monitor current: 0–20 mA with ±0.004% + 1 µA accuracy
• Monitor stability (24 h): ±0.02% FS
• Temperature coefficient: <0.02% FS/°C
Internal Function Generator
• Waveforms: Sine wave, square wave
• Frequency ranges: 200 Hz–2 kHz, 2 kHz–300 kHz
• Square wave duty cycle: 50 ±5%
• Frequency accuracy: ±5%, jitter <1%
• Amplitude accuracy: ±5%
• Sine wave THD: <2%
• Square wave rise time: 6 V
• Typical power: 15 W
• Current accuracy: ±10 mA
• Ripple/noise: <1 mA (rms)
• Short-term stability (1 h): 0.0005°C
• Long-term stability (24 h): 0.001°C
• Temperature coefficient: <0.05°C/°C
• Temperature measurement range: -100.00–+240.00°C, typical accuracy ±0.1°C
• Resistance measurement: 0.01–495 kΩ (10 µA), 0.001–49.5 kΩ (100 µA)
• Temperature sensor: NTC 2-wire thermistor with 10/100 µA bias options
Photodiode Input
• Photodiode current range: 15–20,000 µA, 0.1 µA resolution
• Photodiode current accuracy: ±(0.01% + 1 µA)
• Optical power range: 0.00–3000.00 mW, 0.01 mW resolution
• PD response range: 0.00–600.00 µA/mW
• Photodiode reverse bias: 0–5 V
– Key Features
• Dual LDD/TEC integration in single module reduces footprint and wiring complexity
• Low-noise bipolar TEC driver maintains tight temperature stability
• Programmable function generator enables dynamic laser modulation
• High-resolution current and voltage monitoring
• Direct thermistor measurement simplifies temperature control loops
• Integrated photodiode interface supports power feedback applications
– Typical Applications
• Laser diode stabilization in spectroscopy systems
• Temperature-controlled semiconductor laser modules
• Wavelength tuning via thermal management
• High-speed optical modulation
– Compatibility & Integration
Requires Newport 8000 Series Modular Controller mainframe for operation and command interface.















