Photodetectors are devices used for the detection of light – in most cases of its optical power. More specifically, photodetectors are usually understood as photon detectors, which in some way utilize the photo-excitation of electric carriers; thermal detectors are then not included by t

It is a form of light sensor that converts light energy into electrical energy (voltage or current). The photodiode is a type of semiconducting device with a PN junction. Between the p (positive) and n (negative) layers, an intrinsic layer is present.

An Optical Delay Line (ODL) is an electric-optic-electric instrument. It performs fixed time delay(s), between a few nanoseconds up to several hundred microseconds, for signals from 10MHz up to 40GHz and more.