Far-field analyzer for infrared sources

Details

Published on 15 June 2023

The VTC 2400 from Instrument Systems is a high-resolution infrared camera that was custom-fit for 2D far-field analysis of the beam strength distribution of VCSEL and IR emitters. The cost-effective measurement system consists of a translucent, diffuse Lambert scattering screen and a monochrome camera specialized in measurements in the near infrared range. A light-tight camera body makes the system suitable for both laboratory and production applications.

In the measurement setup, the screen stands between the radiation source (DUT) and the infrared camera, so that the typical radiation characteristic of the DUT is visible on the screen. The VTC 2400 infrared camera captures this 2-dimensional image in a single measurement and converts the irradiance [W/m2] into the beam strength distribution [W/sr] of the DUT via a calibration.