Keithley Optical SourceMeter Instruments
Keithley instrumentation makes it easy to build a LIV (light-current-voltage) system to test laser diode modules cost-effectively.
- 2520 Pulse Laser Diode Test System: Synchronizing test system providing sourcing and measurement capability for pulsed and continuous LIV test.
- TEC SourceMeter SMUs, 2510 and 2510-AT: Ensure tight temperature control for laser diode modules by controlling its thermo-electric cooler
| Features | 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–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. |
| Model | Channels | Max Current Source/Measure Range | Max Voltage Source/Measure Range | Power | Measurement Resolution (Current / Voltage) |
|---|---|---|---|---|---|
| 2510 | 1 | 5A | 10V | 50 W | - |
| 2520 | 1 | 5A | 10V | 50 W | 700nA / 0.33mV |
| 2510-AT | 1 | 5A | 10V | 50 W | - |
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