Keithley 2502/E Dual-Channel Picoammeter

Overview

The Keithley 2502 is a dual-channel picoammeter designed for optical power measurements, beam characterization, and fiber alignment in laser diode manufacturing. It combines low-level current measurement with voltage sourcing capabilities to enable comprehensive Light-Current-Voltage (LIV) testing of laser diode modules for fiber optic telecommunication networks.

Key Features

• Dual independent picoammeter-voltage source channels for simultaneous measurements
• 1fA current measurement resolution with current measurement range of 1fA to 20mA
• ±100V voltage source for bias requirements and device characterization
• 0–10V analog output for high-resolution optical power feedback and fiber alignment
• 3000-point buffer memory on each channel for rapid data transfer after test completion
• User-programmable photodetector calibration coefficients for custom sensor integration
• IEEE-488 and RS-232 interfaces for system integration
• Digital I/O and Trigger Link support for binning and sweep test operations
• 2W total power consumption enabling compact system integration

Applications

• Laser diode module (LDM) production testing and characterization
• Fiber alignment and optimization in laser diode manufacturing
• Optical power measurements with integrating sphere accessories
• Beam measurement and photodetector characterization
• Nanoscale materials and device research
• Parts binning and specification testing for optical components

Included Accessories

• User Manual