REDUCTION IN QUANTUM-NOISE DURING AMPLIFI CATION AND OPTICAL DUPLICATION

Authors
LEVENSON JA ABRAM I GARREAU JC GRANGIER P
Citation
Ja. Levenson et al., REDUCTION IN QUANTUM-NOISE DURING AMPLIFI CATION AND OPTICAL DUPLICATION, Annales de physique, 20(2), 1995, pp. 31-40
Citations number
8
Categorie Soggetti
Physics
Journal title
Annales de physique → ACNP
ISSN journal
00034169
Volume
20
Issue
2
Year of publication
1995
Supplement
S
Pages
31 - 40
Database
ISI
SICI code
0003-4169(1995)20:2<31:RIQDAC>2.0.ZU;2-P
Abstract
Due to quantum noise, 3 dB noise is added to the optical signal by any laser-like optical amplifier, while an optical Y-coupler degrades the signal to quantum-noise ratio by 3 dB. Recent studies of quantum nois e in parametric amplification demonstrate the possibility of noiseless amplification and duplication of optical signals.