机译:On the role of Ge-doping concentration in the refractive index rollover and thermal annealing characteristics of type IIa fiber Bragg gratings
Raja Ramanna Ctr Adv Technol, Met Vapour & Dye Laser Applicat Lab, Laser Syst Engn Sect, Indore 452013, India;
fiber Bragg grating; temperature sustainability; photosensitivity; thermal relaxation; type IIa grating; temperature sensors;