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 $\sim 0.1\%$. The results suggest that the index modulation decay is so slow that postfabrication annealing can be avoided.

© 2000 Optical Society of America

Ultraviolet-induced absorption losses in hydrogen-loaded optical fibers and in presensitized optical fibers

J. Canning, M. Åslund, and P-F. Hu
Opt. Lett. 25(22) 1621-1623 (2000)

Locking in photosensitivity within optical fiber and planar waveguides by ultraviolet preexposure

M. Åslund, J. Canning, and G. Yoffe
Opt. Lett. 24(24) 1826-1828 (1999)

Low-temperature hypersensitization of phosphosilicate waveguides in hydrogen

J. Canning and P-F. Hu
Opt. Lett. 26(16) 1230-1232 (2001)

Thermal stability of the 248-nm-induced presensitization process in standard H₂-loaded germanosilicate fibers

Matthieu Lancry, Pierre Niay, Stéphane Bailleux, Marc Douay, Cristophe Depecker, Patrik Cordier, and Isabelle Riant
Appl. Opt. 41(34) 7197-7204 (2002)

Comparison of isochronal and isothermal decays of Bragg gratings written through continuous-wave exposure of an unloaded germanosilicate fiber

Dominique Razafimahatratra, Pierre Niay, Marc Douay, Bertrand Poumellec, and Isabelle Riant
Appl. Opt. 39(12) 1924-1933 (2000)