Spontaneous anti-Stokes backscattering in Brillouin dynamic gratings

L. Yaron; E. Shahmoon; A. Bergman; T. Langer; M. Tur

doi:10.1117/12.2194608

28 September 2015 Spontaneous anti-Stokes backscattering in Brillouin dynamic gratings

L. Yaron, E. Shahmoon, A. Bergman, T. Langer, M. Tur

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96342X (2015) https://doi.org/10.1117/12.2194608
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

Spontaneous Brillouin backscattering, which accompanies the operation of Brillouin Dynamic Gratings (BDG) sensors, is experimentally investigated for the anti-stokes configuration, where the probe wave propagates against the orthogonally polarized high frequency writing pump. Even in the absence of the low frequency writing pump but for a strong enough high frequency writing pump, the observed anti-Stokes reflection of the probe becomes much stronger than its corresponding value under classical anti-Stokes backscattering. It is also shown that, eventually, as the probe reaches a critical value, the anti-Stokes reflection sharply decreases to its classical value.

Citation Download Citation

L. Yaron, E. Shahmoon, A. Bergman, T. Langer, and M. Tur "Spontaneous anti-Stokes backscattering in Brillouin dynamic gratings", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96342X (28 September 2015); https://doi.org/10.1117/12.2194608

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