Spontaneous backscattering in Brillouin dynamic gratings

L. Yaron; Y. Peled; T. Langer; M. Tur

doi:10.1117/12.975237

17 October 2012 Spontaneous backscattering in Brillouin dynamic gratings

L. Yaron, Y. Peled, T. Langer, M. Tur

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84211L (2012) https://doi.org/10.1117/12.975237
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

The performance of systems employing Brillouin Dynamic Gratings may suffer from noise generated by the spontaneous Brillouin processes. It is experimentally demonstrated that spontaneous emissions, accompanying the signal of interest, contain not only the probe spontaneous Brillouin backscattering but also a significant contribution from the co-propagating writing pump. For a strong enough writing pump and even moderate probe power levels, the observed noise is dominated by the pump, exhibiting an average backscattered power more than 30 dB stronger than that of the probe alone.

Citation Download Citation

L. Yaron, Y. Peled, T. Langer, and M. Tur "Spontaneous backscattering in Brillouin dynamic gratings", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84211L (17 October 2012); https://doi.org/10.1117/12.975237

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