The Newport 8505D is a dual laser diode driver module engineered for precision current control of laser diodes in demanding applications. It delivers stable, low-noise output across a 0–500 mA range with 0.01 mA resolution and ±(0.02% + 20 µA) accuracy. The module integrates into Newport 8016 or 9016 mainframe controllers, which provide automatic module detection, multibay configuration (8 or 16 bays), and enhanced system control via GPIB/IEEE-488 and RS-232C interfaces.
Technical Specifications
• Laser Output Current: 0–500 mA
• Current Limit Range: 0–500 mA
• Output Current Resolution: 0.01 mA
• Output Current Accuracy: ±(0.02% + 20 µA)
• Photodiode Monitor Input: 0–5 mA
• Laser Diode Package Support: Floating or Common Anode configurations
– Key Features
• Dual-channel laser diode driver architecture for independent or synchronized control
• Low-noise current sourcing minimizes spectral broadening and timing jitter
• Photodiode monitoring enables closed-loop feedback and output verification
• Floating and Common Anode package compatibility eliminates redesign for different LD geometries
• Hot-swappable module design with automatic mainframe detection
• GPIB and RS-232C remote interfaces for laboratory automation and data logging
– Typical Applications
• EDFA pump laser control
• DWDM signal source driving
• Precision scientific and industrial laser systems requiring stable, repeatable output
• Communication and fiber-optic subsystems demanding accurate diode biasing
– Compatibility & Integration
The 8505D operates only within Newport 8016 or 9016 mainframe controllers. The mainframe processor handles module identification, sequencing, and remote command execution across all installed modules. Multi-module systems enable simultaneous control of up to 8 or 16 laser diodes with full data acquisition through a single GPIB or serial port.
