The LDX-3545B Laser Diode Driver is a 3 A microprocessor-based current source that offers a high stability, low noise output and integrated laser diode protection circuits. In addition to precision current control, the LDX-3545B Laser Diode Driver is loaded with standard features such as dual current ranges, constant power control, fine/coarse set point control, and external modulation capability. For automated testing applications in an R&D or production environment, remote operation is easily accomplished through the USB interface. For virtual instrument programming, LabVIEW® instrument drivers are available free of charge. LabVIEW® instrument drivers can be downloaded from the Literature and Downloads tab on this page.

Technical Specs

Laser Current 3 A

Laser Compliance Voltage 6 V

Temperature Coefficient <50 ppm FS/°C

Computer Interfaces USB

Power Requirements 120 VAC

Laser Current Accuracy ±0.1% of FS

Transfer Function 300 mA/V

Current Output 24 h Stability <50 ppm FS

Current Output 1 h Stability <20 ppm FS

External Modulation High Bandwidth DC to 50 kHz

External Modulation Low Bandwidth DC to 0.1 kHz

Laser Output Noise/Ripple Low Bandwidth 15 µA

Laser Output Noise/Ripple High Bandwidth 25 µA

Display Type 4-digit Green LED

Photodiode Current Accuracy ±0.1% of FS

Photodiode Current Range 5-9999 µA

Photodiode Reverse Bias 0-5 V

Connector Type DB9 Female