12 October 2005 Growth of second-order fiber gratings based on a new photosensitivity model
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This work demonstrates the feasibility of designing and photoimprinting fiber Bragg gratings with grating periods at least twice longer than conventional short-period fiber Bragg gratings but with identical performance, functionality and applications. A theoretical analysis has been conducted based on a new complete and coherent photosensitivity model for Ge-doped silica fibers. This new photosensitivity model deals in depth with the issue of microscopic mechanisms for grating formation, giving as main result the understanding of the photoinduced refractive index generating process.
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Luis Miguel Rivas, Luis Miguel Rivas, Alejandro Carballar, Alejandro Carballar, Carlos Janer, Carlos Janer, } "Growth of second-order fiber gratings based on a new photosensitivity model", Proc. SPIE 5970, Photonic Applications in Devices and Communication Systems, 597009 (12 October 2005); doi: 10.1117/12.629858; https://doi.org/10.1117/12.629858

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