This article is cited in 12 papers

Laser applications

Role of a "soundguide" and "antisoundguide" in stimulated Brillouin scattering in a single-mode waveguide

B. Ya. Zel'dovich, A. N. Pilipetskiĭ


Abstract: An analysis is made of steady-state stimulated Brillouin scattering (STBS) in planar and cylindrical single-mode waveguides taking into account sound diffraction and refraction in a given transverse sound velocity profile ("soundguide" and "antisoundguide"). For a strong soundguide the STBS line has the same width and Lorentzian profile, the intensity being slightly attenuated compared with STBS of plane waves in an unbounded medium. For a strong antisoundguide the sound is "expelled," the attenuation length becomes of the order of the sound diffraction length, so that the STBS line is substantially broadened, attenuated, and becomes asymmetric.

UDC: 621.373.826

PACS: 42.65.Es, 42.81.Qb, 43.20.Mv

Received: 02.04.1987

 English version: Soviet Journal of Quantum Electronics, 1988, 18:6, 818–822

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