Keithley 2500 Series — Optical SourceMeter (2510/2520) | SourceMeter SMU

Features and Benefits

• Active temperature control — Prevents temperature variations that could cause the laser diode’s dominant output wavelength to change, leading to signal overlap and crosstalk problems.
• 50W TEC Controller — Allows for higher testing speeds and a wider temperature setpoint range than other, lower-power solutions.
• Fully digital P-I-D control — Provides greater temperature stability and can be easily upgraded with a simple firmware change.
• Autotuning capability for the thermal control loop (2510-AT) — Eliminates the need to use trial-and-error experimentation to determine the best combination of P, I, and D coefficients.
• Wide temperature setpoint range (–50°C to +225°C) and high setpoint resolution (±0.001°C) and stability (±0.005°C) — Covers most of the test requirements for production testing of cooled optical components and sub-assemblies.
• Compatible with a variety of temperature sensor inputs—thermistors, RTDs, and IC sensors — Works with the types of temperature sensors most commonly used in a wide range of laser diode modules.
• AC Ohms measurement function — Verifies the integrity of the TEC device.
• 4-wire open/short lead detection for thermal feedback element — Eliminates lead resistance errors on the measured value, reducing the possibility of false failures or device damage.