16 May 2017 Fiber Bragg filters For laser- and multicore fibers
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Abstract
Fiber Bragg gratings (FBGs) have widespread applications in security, information, structural health monitoring, and biophotonics. In telecom applications, FBG inscription has reached a high level of maturity, but remains mainly limited to germanium doped photosensitive single mode fibers. Special applications, like filtering in light harvesting fibers or resonator mirrors for fiber lasers have to deal with special aspects which make the design and realization of FBGs a challenging task. One aspect is the extended wavelength range of these applications. Another aspect is the increasing demand to inscribe fiber Bragg gratings in non-photosensitive germanium-free fibers. Therefore, novel concepts of photosensitivity are proposed. Finally, to increase the amount of captured light the size of the fiber core and the numerical aperture have also to be increased. This goes along with multimode operation and prevents good filtering properties of Bragg gratings.
Conference Presentation
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Martin Becker, Tino Elsmann, Adrian Lorenz, Manfred Rothhardt, "Fiber Bragg filters For laser- and multicore fibers", Proc. SPIE 10232, Micro-structured and Specialty Optical Fibres V, 1023207 (16 May 2017); doi: 10.1117/12.2267236; https://doi.org/10.1117/12.2267236
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