UHF photoparametric amplifier
- 1 December 1966
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electron Devices
- Vol. ED-13 (12), 901-903
- https://doi.org/10.1109/t-ed.1966.15865
Abstract
Measurements on a degenerate UHF photoparametric amplifier using an optical signal modulated at 690 MHz have confirmed the 3 dB noise figure predicted by Penfield and Sawyer. The silicon photoparametric diode served as both the photodetector and varactor and was novel in several respects: the conductivity sequence was p-v-n-n+in contrast to the usual p-v-n+conventionally used for microwave photodiodes; and the diode was designed to be illuminated parallel to the p-v junction. Such a structure has an inherently high Q and features are extended optical response (quantum efficiency ≈ 10 percent at 1.06 µ), coupled with good UHF photodetection behavior, when used either as a simple (unpumped) photodiode or as a photoparametric diode.Keywords
This publication has 1 reference indexed in Scilit:
- Photoparametric amplifierProceedings of the IEEE, 1965