Abnormal Shift of Center Wavelength in Annealing Long-Period Gratings

作     者：QIN Li WEI Zhan-Xiong WANG Qing-Ya LI Hui-Ping ZHANG Yu-Shu GAO Ding-San 秦莉;韦占雄;王庆亚;李惠萍;张玉书;高鼎三

作者机构：Department of Electronics EngineeringJilin UniversityChangchun 130023 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2000年第17卷第1期

页      面：28-30页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

主　　题：center Shift annealing 

摘      要：During annealing process of long-period gratings,the center wavelengths of some inodes shift to red wavelength while those of others shift to blue compared with their original written ones,and the magnitudes of the shifts are related to the decay of the grating *** red shifts of center wavelength are more evident in lower-order inodes of the *** suggest that part of the photodissociated-H2 combines continuously with Ge-defect centers within 2 h after UV-exposure,and with which the observed abnormal shifts can be explained successfully.