Abstract

We compare the results of thermally induced isochronal and isothermal decays of fiber Bragg gratings written through cw exposure of an unloaded germanosilicate fiber. We show that isochronal step decays can be used to predict isothermal decays, provided that some corrections are carried out to take into account a reversible change in grating reflectivity induced by the increase of the fiber temperature. The isochronal accelerated-aging method enables one to sample most of the initial distribution of trapped site energies in a fairly short time. Taking advantage of this property of the method, we show that the initial distribution for a weak grating is similar to those for stronger gratings. The consequences of this observation are discussed within the framework of the various reaction pathway model.

© 2000 Optical Society of America

Isochronal annealing of Bragg gratings written in H₂-loaded or in UV-hypersensitized germano-phosphosilicate planar waveguides: a comparison

Vincent Beugin, Pierre Niay, and Marc Douay
Opt. Express 13(18) 6777-6790 (2005)

Analysis of thermal decay and prediction of operational lifetime for a type I boron-germanium codoped Fiber Bragg grating

Suchandan Pal, Jharna Mandal, Tong Sun, and Kenneth T. V. Grattan
Appl. Opt. 42(12) 2188-2197 (2003)

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

M. Åslund and J. Canning
Opt. Lett. 25(10) 692-694 (2000)

Experimental investigation of link between growth and decay of fiber Bragg gratings

Balaji Srinivasan, V. J. Vishnu Prasad, Rajesh Joseph, S. Asokan, and Nirmal K. Viswanathan
Appl. Opt. 50(21) 4042-4047 (2011)

Temperature-induced reversible changes in the spectral characteristics of fiber Bragg gratings

Arif Hidayat, Qinglin Wang, Pierre Niay, Marc Douay, Bertrand Poumellec, Farid Kherbouche, and I. Riant
Appl. Opt. 40(16) 2632-2642 (2001)