Count Photon Counters

Laser Components has introduced its range of Count photon counters, which achieve quantum efficiency of more than 70 per cent in the red region, as well as significantly higher quantum efficiency in the blue spectral range than competing products. In addition, these modules are perfectly suited for measurements across the entire wavelength range from 400-1,000nm.

The Count series is based on a purpose-developed silicon Geiger-mode APD, which is one of the lowest-noise APDs on the market. Together with electronics that have been optimised down to the smallest detail, this APD represents the heart of the Count module.