Keithley Optical SourceMeter® Instruments

Light-Current-Voltage (LIV) Testing for Laser Diode Modules

Keithley instrumentation makes it easy to build a LIV (light-current-voltage) system to test laser diode modules cost-effectively.

  • Fiber Alignment Photodiode Meter 2502: High speed analog output enables LIV testing at the fiber alignment stage.
  • Pulse Laser Diode Test System with optional Integrating Sphere 2520/KIT1: 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.

SMU Tutorials »

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Price starting from
US $5,520 - US $8,720
LIST PRICE
US $5,520
Channels
Max Current Source/Measure Range
Max Voltage Source/Measure Range
Power

1

5A

10V

50 W

LIST PRICE
US $6,490
Channels
Max Current Source/Measure Range
Max Voltage Source/Measure Range
Power

1

5A

10V

50 W

LIST PRICE
US $8,720
Channels
Max Current Source/Measure Range
Max Voltage Source/Measure Range
Measurement Resolution (Current / Voltage)
Power

2

20mA

100V

1fA

2 W

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-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.
Data SheetAccessoryDescription
2000-BENCHKIT MULTI MODEL BENCH CONVERSION KIT
2510-CAB CABLE ASSEMBLY
4288-1 SINGLE FIXED RACK MOUNTING KIT
4288-2 DUAL FIXED RACK MOUNTING KIT
4288-5 RACK KIT
TitleType
Measuring Laser Diode Optical Power with an Integrating Sphere

This white paper offers an overview on using an integrating sphere to measure the optical power of radiant sources in a production environment.

Whitepaper
Pulse Testing of Laser DiodesWhitepaper
Optimizing TEC PID Coefficients Automatically with the Model 2510-ATApplication Note
#2214 High-Throughput DC Production Test of Telecommunications Laser Diode ModulesApplication Note
Pulsed LIV Testing of Low Power Optical Devices with a Model 2520Application Note
Keithley Pulse Solutions

This guide is designed to help you identify Keithley solutions that include pulse sources that might suit your application's requirements.

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