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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. 4 — Apr. 1, 2002
  • pp: 689–694

Dynamic effects of the stimulated Brillouin scattering in fibers due to acoustic diffraction

V. Grimalsky, S. Koshevaya, G. Burlak, and B. Salazar-H.  »View Author Affiliations


JOSA B, Vol. 19, Issue 4, pp. 689-694 (2002)
http://dx.doi.org/10.1364/JOSAB.19.000689


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Abstract

The influence of acoustic-wave diffraction on nonstationary backward stimulated Brillouin scattering (SBS) in the presence of feedback for a Stokes electromagnetic wave is numerically investigated. The cases of an acoustic-waveguide and-antiwaveguide fibers are considered. The Kerr nonlinearity is taken into account. For fibers with a small core radius (r<sub>0</sub><3 μm), the influence of sound diffraction on the nonstationary SBS can lead to new features. The importance of the acoustic-mode structure of the fiber for the process of forming a pulse train is shown in the case of synchronous pumping in Brillouin fiber lasers. It has been found that the acoustic-antiwaveguide fibers with a small core, r<sub>0</sub><3 μm, can be preferable for obtaining a stable train of compressed pulses. Under a constant input pump, an acoustic diffraction can essentially reduce the threshold of the modulation instability under SBS in the presence of the feedback.

© 2002 Optical Society of America

OCIS Codes
(190.3100) Nonlinear optics : Instabilities and chaos
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(190.5890) Nonlinear optics : Scattering, stimulated
(290.5900) Scattering : Scattering, stimulated Brillouin

Citation
V. Grimalsky, S. Koshevaya, G. Burlak, and B. Salazar-H., "Dynamic effects of the stimulated Brillouin scattering in fibers due to acoustic diffraction," J. Opt. Soc. Am. B 19, 689-694 (2002)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-19-4-689


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