Fiber Bragg gratings with enhanced thermal stability

Brambilla, Gilberto; Rutt, Harvey
May 2002
Applied Physics Letters;5/6/2002, Vol. 80 Issue 18, p3259
Academic Journal
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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