Properties of Photon Counting System with Squeezed State Signal in Loss Channel

Seitetsu BUN  Kouichi YAMAZAKI  Osamu HIROTA  Masao NAKAGAWA  

IEICE TRANSACTIONS (1976-1990)   Vol.E72   No.9   pp.953-956
Publication Date: 1989/09/25
Online ISSN: 
Print ISSN: 0000-0000
Type of Manuscript: LETTER
Category: Optical Communication

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This letter clarifies properties of system using squeezed state signal in photon channel with energy loss. It is found that error rate of squeezed state system is always superior to that of coherent state, and that reduction of optimum squeezing parameter is allowed by optimization taking into account loss in comparison with optimization of transmitter squeezed state.