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23 January 1997 Material considerations for Bragg fiber gratings
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Abstract
In general, fibers designed for use in telecommunications systems are not sufficiently photosensitive to allow 'strong' fiber gratings to be written. This has led to the search for other silica-based fibers which exhibit enhanced photosensitivity without the need for hydrogen-loading, the boron co-doped germania fiber being perhaps the best known example. In addition, it is sometimes necessary to exclude dopants such as germania from the core as they would interfere with other desirable properties of the fiber. Prime examples are the rare-earth doped fiber laser and erbium-doped fiber amplifier, devices which may require low concentrations of germania in order to function properly. This paper covers some of the advances that have been made in searching for new materials, the problems which have been overcome, and those which remain.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Laurence Reekie and Liang Dong "Material considerations for Bragg fiber gratings", Proc. SPIE 2998, Photosensitive Optical Materials and Devices, (23 January 1997); https://doi.org/10.1117/12.264168
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