Brambilla, G. and Rutt, H.N.
Fiber Bragg gratings with enhanced thermal stability
Applied Physics Letters, 80, (18), . (doi:10.1063/1.1475366).
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Gratings written in tin-doped silica fibers by using a 248 nm excimer laser exhibit extremely high thermal stability. Isothermal measurements up to 1100 K demonstrate significant advantages over conventional fiber gratings. Extrapolations from experimental data indicated that gratings operating at 500 K for ten years will retain more than 99% of the initial strength.
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