Producing Regenerated Gratings in Hydrogen-Loaded Single Mode Fiber by Heat Treatment  

作　　者：Haihu YU Gengmin LI Xiaofu LI Huiyong GUO 

机构地区：[1]1National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan,430070, China [2]Key Laboratory of Fiber Optic Sensing Technology and Information Processing (Ministry of Education), Wuhan,University of Technology, Wuhan, 430070, China

出　　处：《Photonic Sensors》2014年第2期125-127,共3页光子传感器（英文版）

基　　金：This work was supported by the Major Program of the National Natural Science Foundation of China （Grant No. 61290311）.

摘　　要：The 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 temperatures and attract extensive attention. In this paper, FBGs were inscribed in hydrogen loaded standard single mode fibers with the 248-nm excimer laser, and regenerated gratings were obtained through heat treatment. The shift of the central wavelength of the regenerated FBG had a good linearity with temperature, and the reflectivity of the regenerated FBG could almost keep unchanged at 800 ℃.

关 键 词：Fiber Bragg grating regenerated grating heat treatment single mode fiber hydrogen loading 

分 类 号：TN253[电子电信—物理电子学] TQ342.82[化学工程—化纤工业]