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28 August 2019 Towards a better understanding of the ROGUE
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Proceedings Volume 11199, Seventh European Workshop on Optical Fibre Sensors; 111993D (2019) https://doi.org/10.1117/12.2541342
Event: Seventh European Workshop on Optical Fibre Sensors, 2019, Limassol, Cyprus
Abstract
We investigate the properties of the ROGUE (Random Optical Grating by Ultraviolet or ultrafast laser Exposure), a type of grating we demonstrated recently, to better understand the origins of its enhanced reflectivity and broad bandwidth. Through this study, we are able to distinguish which proportion of the signal comes from random defects originating from the laser exposure, and which proportion comes from the random grating written in the fiber core. Through the understanding of the cause and the parameters responsible for the signal enhancement, we can optimize ROGUE fabrication to minimize scattering losses due to the random generation of defects and optimize the signal backscatter. Additionally, we investigate the origins of the ROGUE’s large bandwidth, and derive the parameters defining it allowing us to tune the bandwidth to the optimal value for sensing applications.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
F. Monet, P. Lorre, J.-S. Boisvert, V. Lambin-Iezzi, and Raman Kashyap "Towards a better understanding of the ROGUE", Proc. SPIE 11199, Seventh European Workshop on Optical Fibre Sensors, 111993D (28 August 2019); https://doi.org/10.1117/12.2541342
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