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Annealing of UV-induced fiber gratings written in Ge-doped fibers: investigation of dose and strain effects

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Abstract

Effects of UV-dose and fiber strain on annealing properties of fiber gratings written in Ge-doped fibers have been experimentally investigated. It was found that tensile stress in the fiber core strongly changes the grating decay curve. A new band in the distribution of the activation energy of the grating thermal decay with a center at 2.9 eV has been observed.

© 2003 Optical Society of America

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