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Giant excess noise and transient gain in misaligned laser cavities

Firth, William J. and Yao, Alison M. (2005) Giant excess noise and transient gain in misaligned laser cavities. Physical Review Letters, 95 (7). 073903-1. ISSN 0031-9007

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Abstract

The excess noise factor is calculated analytically for a very general class of optical cavities, and is shown to have a superexponential dependence on cavity misalignment, easily attaining values of order 1010. The physical basis is shown to be 'transient gain' associated with amplified spontaneous emission. Similarly dramatic effects of symmetry breaking can be expected in other physical systems with non-normal modes.

Item type: Article
ID code: 2885
Keywords: optical cavities, optics, lasers, noise, photonics, Optics. Light, Physics and Astronomy(all)
Subjects: Science > Physics > Optics. Light
Department: Faculty of Science > Physics
Depositing user: Mr Derek Boyle
Date Deposited: 06 Feb 2007
Last modified: 04 Sep 2014 12:27
URI: http://strathprints.strath.ac.uk/id/eprint/2885

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