Inscription kinetics and thermal stability of Bragg gratings written within heated fibers

Pascal Bernage; Thierry Taunay; B. Leconte; Marc Douay; Pierre Niay; Jean-Francois Bayon; H. Poignant; Francois Herlemont; J. Legrand; Bertrand Poumellec

doi:10.1117/12.258962

20 November 1996 Inscription kinetics and thermal stability of Bragg gratings written within heated fibers

Pascal Bernage, Thierry Taunay, B. Leconte, Marc Douay, Pierre Niay, Jean-Francois Bayon, H. Poignant, Francois Herlemont, J. Legrand, Bertrand Poumellec

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Proceedings Volume 2841, Doped Fiber Devices; (1996) https://doi.org/10.1117/12.258962
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

The writing of gratings within heated hydrogen loaded, non H₂ loaded germanosilicate or Ce³⁺ doped aluminosilicate fibers was carried out through UV exposure. The fibers were heated by means of a CO₂ laser beam. The thermally induced change in the grating growth kinetics depends on the type of fiber used to write the grating. The thermal stability of gratings written in either heated or unheated germanosilicate fibers was investigated through isochronal annealing experiments. Difference between the thermal behaviors of gratings written in the H₂ loaded and the non H₂ loaded fibers was demonstrated. There exists strong evidence that structural changes are involved in the photosensitivity of the germanosilicate fibers.

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Pascal Bernage, Thierry Taunay, B. Leconte, Marc Douay, Pierre Niay, Jean-Francois Bayon, H. Poignant, Francois Herlemont, J. Legrand, and Bertrand Poumellec "Inscription kinetics and thermal stability of Bragg gratings written within heated fibers", Proc. SPIE 2841, Doped Fiber Devices, (20 November 1996); https://doi.org/10.1117/12.258962

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