Abnormally low threshold gain of stimulated Brillouin scattering in long optical fiber with feedback

V. I. Kovalev, R. G. Harrison

Research output: Contribution to journalArticle

Abstract

We show that in the generation of stimulated Brillouin scattering (SBS) in long (>1km) fiber, the threshold for observing coherent Stokes emission occurs at notably lower gain than the classical lasing threshold gain for SBS. The effect is due coherent regenerative amplification of strong spontaneous Brillouin scattering, which occurs in the presence of feedback. The magnitude of the effect scales with the length of interaction. © 2008 Optical Society of America.

Original languageEnglish
Pages (from-to)12272-12277
Number of pages6
JournalOptics Express
Volume16
Issue number16
DOIs
Publication statusPublished - 4 Aug 2008

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optical fibers
thresholds
scattering
scale effect
lasing
fibers
interactions

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Kovalev, V. I. ; Harrison, R. G. / Abnormally low threshold gain of stimulated Brillouin scattering in long optical fiber with feedback. In: Optics Express. 2008 ; Vol. 16, No. 16. pp. 12272-12277.
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Abnormally low threshold gain of stimulated Brillouin scattering in long optical fiber with feedback. / Kovalev, V. I.; Harrison, R. G.

In: Optics Express, Vol. 16, No. 16, 04.08.2008, p. 12272-12277.

Research output: Contribution to journalArticle

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AU - Harrison, R. G.

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AB - We show that in the generation of stimulated Brillouin scattering (SBS) in long (>1km) fiber, the threshold for observing coherent Stokes emission occurs at notably lower gain than the classical lasing threshold gain for SBS. The effect is due coherent regenerative amplification of strong spontaneous Brillouin scattering, which occurs in the presence of feedback. The magnitude of the effect scales with the length of interaction. © 2008 Optical Society of America.

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