Producing regenerated gratings in hydrogen-loaded single mode fiber by heat treatment

Haihu Yu; Gengmin Li; Xiaofu Li; Huiyong Guo

doi:10.1117/12.2031504

15 October 2013 Producing regenerated gratings in hydrogen-loaded single mode fiber by heat treatment

Haihu Yu, Gengmin Li, Xiaofu Li, Huiyong Guo

Proceedings Volume 8924, Fourth Asia Pacific Optical Sensors Conference; 892407 (2013) https://doi.org/10.1117/12.2031504
Event: Asia Pacific Optical Sensors Conference 2013, 2013, Wuhan, China

Abstract

Fiber Bragg grating (FBG) is a passive optical fiber component with the refractive index modulated along the fiber length and has been widely applied in fiber sensing systems. High-temperature stable fiber gratings are promising for uses at high temperature and receive extensive attentions. In this paper, FBGs were inscribed in hydrogen loaded standard single mode fibers with 248 nm excimer laser, and regenerated gratings were obtained through heat treatment. The center wavelength of the regenerated FBG has a good linearity with temperature, and the reflectivity of the regenerated FBG can almost keep unchanged at 800 °C.

Citation Download Citation

Haihu Yu, Gengmin Li, Xiaofu Li, and Huiyong Guo "Producing regenerated gratings in hydrogen-loaded single mode fiber by heat treatment", Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 892407 (15 October 2013); https://doi.org/10.1117/12.2031504

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