Giant excess noise and transient gain in misaligned laser cavities

Research output: Contribution to journalArticle

18 Citations (Scopus)

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.
LanguageEnglish
Pages073903-1
Number of pages73902
JournalPhysical Review Letters
Volume95
Issue number7
DOIs
Publication statusPublished - Aug 2005

Fingerprint

laser cavities
cavities
misalignment
spontaneous emission
broken symmetry

Keywords

  • optical cavities
  • optics
  • lasers
  • noise
  • photonics

Cite this

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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.",
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Giant excess noise and transient gain in misaligned laser cavities. / Firth, William J.; Yao, Alison M.

In: Physical Review Letters, Vol. 95, No. 7, 08.2005, p. 073903-1.

Research output: Contribution to journalArticle

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