Photonic Sensors, 2014, 4 (2): 125, 网络出版: 2014-04-09
Producing Regenerated Gratings in Hydrogen-Loaded Single Mode Fiber by Heat Treatment
Producing Regenerated Gratings in Hydrogen-Loaded Single Mode Fiber by Heat Treatment
摘要
Abstract
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 ℃.
Haihu YU, Gengmin LI, Xiaofu LI, Huiyong GUO. Producing Regenerated Gratings in Hydrogen-Loaded Single Mode Fiber by Heat Treatment[J]. Photonic Sensors, 2014, 4(2): 125. Haihu YU, Gengmin LI, Xiaofu LI, Huiyong GUO. Producing Regenerated Gratings in Hydrogen-Loaded Single Mode Fiber by Heat Treatment[J]. Photonic Sensors, 2014, 4(2): 125.