The Muetta PLPS2005 is a microprocessor-controlled programmable laser power supply engineered for semiconductor laser characterization. It drives laser diodes while simultaneously measuring laser voltage, current, and reverse clamping voltage. The instrument biases and measures monitor diodes, modulator diodes, and external photocells with adjustable voltages, including sensitive dark current measurement of monitor photodiodes. Dynamic measurement capability allows real-time acquisition of light-current slope characteristics at specified operating points.
Technical Specifications
Measurement Functions
• Laser voltage and current
• Reverse clamping voltage (laser diode)
• Monitor diode bias voltage and current with dark current sensitivity
• Modulator diode bias voltage and current
• External photocell bias voltage and current
• Dynamic light-current slope measurement
Operational Modes
• OFF Mode: laser output shorted; bias voltages at zero
• NORMAL Mode: active laser current delivery
Control & Communication
• Microprocessor-based control architecture
• RS232 interface (user-configurable baud rate and handshake)
• GPIB interface with user-configurable address assignment
• Front-panel configuration of all communication parameters
• Status and error reporting via command queries (*IDN?, ?S, ?E)
• Firmware version 1.10 or higher
Electrical Specifications
• Mains voltage: 230 V or 115 V (selectable via fuseholder)
• Power switch integrated into mains inlet
• Fuse values specified on rear panel
– Key Features
• Simultaneous voltage and current measurement during laser operation
• Sensitive dark current measurement range for photodiode characterization
• Dual remote control options (RS232 and GPIB)
• Configurable communication parameters from front panel
• Foldable feet for benchtop deployment
• Ventilation slots (bottom and rear) must remain unobstructed
– Typical Applications
Semiconductor laser qualification and production testing; monitor photodiode characterization; modulator biasing and measurement; optical system integration validation.
– Compatibility & Integration
RS232 and GPIB connectivity enable integration into automated test systems. Manual operation via front panel supports standalone measurements. Firmware version control ensures consistent command set and measurement accuracy across installations.
