Precision Light Measurement for LEDs, VCSELs, Lasers, and More
Accurate, repeatable light measurement is essential when characterizing LEDs, VCSELs, lasers, and other semiconductor devices that emit light. The performance data collected is only as reliable as the measurement system behind it. Accurate LED testing starts with the right tools: a stable source to power the device, a precision digitizer to capture voltage, and reliable optical instruments to measure light output. Vektrex specializes in high-accuracy optical measurement, offering solutions designed to support demanding R&D, production, and reliability environments.
Comprehensive Measurement Capabilities
. The systems support a full range of operating modes including Constant Current, CW, QCW, Single Pulse, Continuous Pulse, Short Pulse, Differential Continuous Pulse (for UV LEDs), advanced Dynamic Modes and sweeps.
Flexible triggering and a dedicated hardware timing system ensure precise, time-aligned SMART Measurements, delivering consistent and repeatable results every time.
Below is a selection of Vektrex’s industry-leading light measurement tools and systems, each engineered to deliver trusted, repeatable results.
UV-LED Characterization and Measurement Station
Accurate LED testing starts with the right tools: a stable source to power the device, a precision digitizer to capture voltage, and reliable optical instruments to measure light output. Combining the industry standard BTS2048 from GigaHertz-Optik with Vektrex pulsed SMU results in a complete test station that offers the performance, control, and ease of use needed to streamline LED development and testing.
Operational software provides an easy to use interface with standard operational measurement modes including constant current, single pulse and continuous pulse modes. The most accurate measurement method defined by LM-92-22; the Differential Continuous Pulse method simplifies UV-LED measurements.
Vektrex pulsed/DC Source Measure Units are available to support a wide range of devices including uLEDs, UV-LEDs, high voltage devices and high current devices. Key performance parameters including Peak Power, Irradiance, and Radiant Flux are measured with confidence.
The compact system fits on a benchtop and easily customizable with different size spheres and thermal platforms.
Automated Light Measurement System
Vektrex Automated Light Measurement System is designed to speed and reliably measure up to 40 devices mounted on a PCB. The system, designed for Energy Star Certification Test is also useable for testing single devices and light modules of sizes to 75mm x 300mm.
Based upon the industry standard CAS-140 spectrometer manufactured by Instrument Systems, this system offers 0.05% flux repeatability allowing failure trends to be identified sooner in the reliability/burn-in process saving time and money.
Learn About Vektrex Solution for Automating Light Measurements.
LIV Curve Test System – Photodiode
Vektrex LIV Curve Test System is based upon use of Vektrex source measure instrument to control the current, one digitizer to accurately read the voltage and a second digitizer to read the photodiode. The system is applicable for use with Lasers and LEDs.
Vektrex source measure instrument with short pulse capability and optional second digitizer to read a photodiode is a complete solution for LIV curve generation.
Learn more above LIV Test Systems Using An SMU
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Intuitive Visualization & Control
Capture a single point, multiple points, or complete sweeps. Instantly view IV and LIV curves, explore device behavior, and select reference points directly from the graph.