A technique for enhancing the thermal stability of hydrogen-loaded fiber Bragg grating  

作　　者：余有龙 谭华耀 

机构地区：[1]Research Institute of Fiber Optics, Heilongjiang University,Harbin 150080 Department of Electrical Engineering, the Hong Kong Polytechnic University,Kowloon, Hong Kong SAR [2]Department of Electrical Engineering, the Hong Kong Polytechnic University,Kowloon, Hong Kong SAR

出　　处：《Chinese Optics Letters》2003年第5期256-258,共3页中国光学快报（英文版）

基　　金：This work was Jointly supported by the Combined Research Foundation, the National Natural Science Foundation of China, the Energy Conservation Investment Corporation of China (60177029), the Science Fund for Distinguished Young Scholars of Heilongjiang P

摘　　要：Heat treatment with the presence of hydrogen (H2) that react with GeE' centers (Ge≡) at high temperature will weaken the refractive index modulation of grating fabricated in hydrogen-loaded normal germanosilicate fiber. Pre-annealing treatment of the above fiber was demonstrated to be able to enhance the grating's thermal stability effectively. 0.37-nm blue-shift of the reflected Bragg wavelength was observed.Heat treatment with the presence of hydrogen (H2) that react with GeE' centers (Ge≡) at high temperature will weaken the refractive index modulation of grating fabricated in hydrogen-loaded normal germanosilicate fiber. Pre-annealing treatment of the above fiber was demonstrated to be able to enhance the grating's thermal stability effectively. 0.37-nm blue-shift of the reflected Bragg wavelength was observed.

关 键 词：for it FBG as HZ of A technique for enhancing the thermal stability of hydrogen-loaded fiber Bragg grating 

分 类 号：O436[机械工程—光学工程]