An integrated photoconductive detector and waveguide structure

Abstract
A new photoconductive detector is described that uses the previously reported optical field effect transistor structure. The detector has good sensitivity (photoconductive gain of ∼5) and high speed (∼150 psec). Light was coupled to this detector via a 7059 glass over SiO2 waveguide. The overall coupling efficiency including losses in endfire coupling was about 40%.

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