The Newport 505AN Laser Diode Driver with Analog Interface delivers precision current and power control for laser diodes in scientific and industrial applications. This instrument operates in constant current or constant laser power modes, with selectable output ranges and independent current limiting to protect your diode. Analog interface connectivity enables remote control, monitoring, and external voltage modulation. Built-in redundant safety circuits and CDRH-compliant output delay provide critical laser diode protection during soft-start and operation.
Technical Specifications
• Output Current Ranges: 0–200 mA or 0–500 mA (selectable)
• Output Current Accuracy: ±0.1% FS
• Output Current Resolution: 0.020 mA (0–200 mA range); 0.050 mA (0–500 mA range)
• Laser Output Compliance Voltage: 7 V
• Photodiode Current Accuracy: ±0.1%
• Photodiode Current Resolution: 1.0 µA
• Monitor Current Accuracy: ±0.1%
• Operating Modes: Constant Current; Constant Laser Power
• Photodiode Bias: Zero or reverse-biased up to 5 V (no external supply required)
• Power Input: 90–264 V AC, 50–60 Hz
• Laser/Photodiode Connector: 9-pin female D-sub
• Analog Interface Connector: 15-pin high-density female D-sub
• External Analog Modulation Input: BNC
• External Photodiode Input: BNC
– Key Features
• Selectable 0–200 mA and 0–500 mA output ranges with high resolution and accuracy
• Independent current limit setting for laser diode protection
• Redundant FET and relay shorting circuits during soft-start
• Output On/Off keyswitch and interlock
• CDRH US21 CFR 1040.10 compliant output delay
• Analog interface for remote control and real-time monitoring
• External analog modulation via voltage control
– Typical Applications
• Spectroscopy
• Fiber optics communications
• Demanding scientific and industrial research
– Compatibility & Integration
Designed for direct control of laser diodes with external photodiode feedback capability. Analog interface supports integration into laboratory automation systems and remote measurement setups.
