Polarization of Brillouin scattered light in silica nanofibers

Camille Buret; Martin Hauden; Jacques Chrétien; Adrien Godet; Thibaut Sylvestre; Jean-Charles Beugnot; Kien Phan Huy

doi:10.1117/12.2544894

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2 March 2020 Polarization of Brillouin scattered light in silica nanofibers

Camille Buret, Martin Hauden, Jacques Chrétien, Adrien Godet, Thibaut Sylvestre, Jean-Charles Beugnot, Kien Phan Huy

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Proceedings Volume 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX; 112641F (2020) https://doi.org/10.1117/12.2544894
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

We investigate both theoretically and experimentally the polarization properties of Brillouin light scattering in silica optical nanofibers. Our results show that while all hybrid acoustic waves scatter light without altering the state of polarization, one of the surface acoustic wave generates a depolarized Stokes light. Because of the slight ellipticity of the nanofiber, the surface wave is actually split into two torso-radial modes which give rise to polarization scrambling of the backward Brillouin Stokes signal. Our model also predicts that the polarization of the scattered light can be restored for one specific pump polarization.

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Camille Buret, Martin Hauden, Jacques Chrétien, Adrien Godet, Thibaut Sylvestre, Jean-Charles Beugnot, and Kien Phan Huy "Polarization of Brillouin scattered light in silica nanofibers", Proc. SPIE 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX, 112641F (2 March 2020); https://doi.org/10.1117/12.2544894

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