Strong And Robust Bragg Gratings In Photo-Thermo-Refractive Glass Fiber

Abstract

We demonstrate strong and robust fiber Bragg gratings in the first low-loss optical fiber made from photo-thermo-refractive (PTR) glass. A high grating strength of 20 dB is maintained even at 12 hour exposure to temperatures above 400 °C. © 2013 The Optical Society

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