SIGNAL-TO-NOISE RATIO OF OPTICAL-SYSTEM CONSISTING OF SQUEEZER AND OPTICAL KERR MEDIUM

Authors
SASAKIUSUDA T SATOH T YAMAZAKI K HIROTA O
Citation
T. Sasakiusuda et al., SIGNAL-TO-NOISE RATIO OF OPTICAL-SYSTEM CONSISTING OF SQUEEZER AND OPTICAL KERR MEDIUM, J. mod. opt., 41(12), 1994, pp. 2275-2289
Citations number
20
Categorie Soggetti
Optics
Journal title
J. mod. opt. → ACNP
ISSN journal
09500340
Volume
41
Issue
12
Year of publication
1994
Pages
2275 - 2289
Database
ISI
SICI code
0950-0340(1994)41:12<2275:SROOCO>2.0.ZU;2-V
Abstract
In this paper, we analyse the properties of a quantum state transforma tion system consisting of a squeezer and an optical Kerr medium. An av erage, a variance, and a signal-to-noise ratio (SNR) of a quadrature-p hase amplitude are calculated analytically. We show that the SNR is in creased by this system; in particular the use of a squeezer with a lar ge squeezing gain gives a drastic improvement in the SNR. Furthermore, the reason for the improvement in SNR and the usefulness of the squee zed state are discussed.