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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 19, Iss. 10 — Oct. 1, 2002
  • pp: 2341–2345

Threshold of second-order stimulated Brillouin scattering in optical fiber

Timothy H. Russell and Won B. Roh  »View Author Affiliations


JOSA B, Vol. 19, Issue 10, pp. 2341-2345 (2002)
http://dx.doi.org/10.1364/JOSAB.19.002341


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Abstract

The threshold for second-order stimulated Brillouin scattering (SBS) in a fiber has been investigated; the study was motivated, in part, by the need to determine the operational dynamic range of SBS fiber beam combiners. Theoretical analysis showed that the second-order Stokes threshold is approximately 130 times the first-order threshold. Experimentally, however, the threshold was found to be only 15 times greater. This dramatic reduction in threshold was determined to be due to the generation of second-order Stokes photons through four-wave mixing, which in turn seeds the second-order SBS process. Suppression of internal Fresnel reflection at the front fiber facet can help to restore the threshold to the higher value.

© 2002 Optical Society of America

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(230.4320) Optical devices : Nonlinear optical devices
(290.5900) Scattering : Scattering, stimulated Brillouin

Citation
Timothy H. Russell and Won B. Roh, "Threshold of second-order stimulated Brillouin scattering in optical fiber," J. Opt. Soc. Am. B 19, 2341-2345 (2002)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-19-10-2341

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