DocumentCode
859780
Title
Considerations of noise and schemes for its reduction in laser amplifiers
Author
Kogelnik, H. ; Yariv, A.
Author_Institution
Bell Telephone Laboratories, Inc., Murray Hill, NJ
Volume
52
Issue
2
fYear
1964
Firstpage
165
Lastpage
172
Abstract
Spontaneous emission adds noise to the signal in laser amplifiers. In this paper the radiation characteristics of this noise and structures to reduce it are discussed. The structures make use of the spatial directionality of coherent light, and consist of aperture stops in combination with lenses. Their ultimate performance is studied. Signal-beam configurations necessary for optimum signal-to-noise (SNR) are described.
Keywords
Apertures; Laser modes; Laser noise; Lenses; Masers; Noise reduction; Optical amplifiers; Optical noise; Signal to noise ratio; Stimulated emission;
fLanguage
English
Journal_Title
Proceedings of the IEEE
Publisher
ieee
ISSN
0018-9219
Type
jour
DOI
10.1109/PROC.1964.2805
Filename
1444735
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