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Proceedings Paper

Generation of amplitude-squeezed light from a pump-suppressed semiconductor laser with dispersive optical feedback
Author(s): John E. Kitching; Amnon Yariv; Yaakov Shevy
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Paper Abstract

Amplitude-squeezed states are generated from a room-temperature semiconductor laser using a combination of pump suppression and dispersive optical feedback. The laser amplitude noise is found to be sensitive to extremely weak feedback levels, of the order of 10-8 of the output power. a reduction of the noise from 2% below the standard quantum limit (SQL) under free-running conditions to 19% below the SQL under optimal feedback conditions is obtained. A single mode theory is presented but is found to be inadequate in explaining the measured dependence of the noise reduction on the feedback power. A multimode theory including asymmetrical cross-mode nonlinear gain is proposed to explain this discrepancy.

Paper Details

Date Published: 26 April 1995
PDF: 14 pages
Proc. SPIE 2378, Laser Frequency Stabilization and Noise Reduction, (26 April 1995); doi: 10.1117/12.208247
Show Author Affiliations
John E. Kitching, California Institute of Technology (United States)
Amnon Yariv, California Institute of Technology (United States)
Yaakov Shevy, Univ. of Miami (United States)

Published in SPIE Proceedings Vol. 2378:
Laser Frequency Stabilization and Noise Reduction
Yaakov Shevy, Editor(s)

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