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Annealing properties of gratings written into UV-presensitized hydrogen-outdiffused optical fiber

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Abstract

Accelerated aging of gratings written in UV presensitized hydrogen outdiffused optical fibers show that these gratings are more stable than standard gratings written in hydrogen-loaded fibers. They are observed to grow initially by as much as 2%. The predicted decay after 25 years at 80 °C is 0.1%. The results suggest that the index modulation decay is so slow that postfabrication annealing can be avoided.

© 2000 Optical Society of America

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