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arXiv · 1402.7089

Nonlinear stimulated Brillouin scattering in a single-mode optical fiber

K. Kieu·D. Churin·E. M. Wright·R. A. Norwood·N. Peyghambarian
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Abstract

We predict and experimentally observe a nonlinear variant of stimulated Brillouin scattering in a single-mode fiber that arises from consideration of higher-order processes for phonon generation. The effect manifests itself at high laser excitation as the appearance of Stokes gain for a detuning equal to half of the conventional Brillouin frequency in the fiber, with no accompanying anti-Stokes absorption at the opposite detuning, and requires counter-propagating pump beams for phase-matching. We believe that this could be a new nonlinear optical effect that has not been observed before.

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K. Kieu, D. Churin, E. M. Wright, R. A. Norwood, N. Peyghambarian. 2014-02-27. Nonlinear stimulated Brillouin scattering in a single-mode optical fiber. https://arxiv.org/abs/1402.7089

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