5 October 2009 Regeneration of fiber Bragg gratings in photosensitive fibers without hydrogen loading
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Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75032W (2009) https://doi.org/10.1117/12.834574
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom
Abstract
We report about a thermal regeneration of fiber Bragg gratings written in photosensitive fibers with nanosecond laser pulses. We observe a complex regenerative process in a photosensitive fiber without hydrogen loading which indicates a secondary grating growth in an optical fiber by thermal activation. This process is more temperature stable than the commonly known color center modifications. The writing conditions of such new grating types are investigated and the temperature behavior of these regenerated fiber Bragg gratings (RFBG) is analyzed. The main application options are foreseen in the field of high temperature sensor systems by combining the good spectral shape of a Type I grating with the high temperature stability of a Type II grating.
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Eric Lindner, Eric Lindner, Christoph Chojetzki, Christoph Chojetzki, Sven Brückner, Sven Brückner, Martin Becker, Martin Becker, Manfred Rothhardt, Manfred Rothhardt, Hartmut Bartelt, Hartmut Bartelt, } "Regeneration of fiber Bragg gratings in photosensitive fibers without hydrogen loading", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75032W (5 October 2009); doi: 10.1117/12.834574; https://doi.org/10.1117/12.834574
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