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Balanced 3*3 port phase diversity receiver with reduced impact of thermal noise

: Langenhorst, R.; Patzak, E.; Pieper, W.


Electronics Letters 26 (1990), Nr.9, S.595-6
ISSN: 0013-5194
Fraunhofer HHI ()
diversity reception; optical communication equipment; optical fibres; balanced receiver; 3*3 port phase diversity receiver; thermal noise; heterodyne receivers; preamplifiers

The first 3*3 port balanced phase diversity receiver in which thermal noise has the same impact as in heterodyne receivers was realised although three preamplifiers are used. Experimental and theoretical results which prove the reduced impact of thermal noise compared with a conventional 3*3 port receiver are presented.