%0 Journal Article
%T The relationship between the resonant wavelength of the long period fiber grati ng and its exposure<br>长周期光纤光栅谐振波长与曝光量的变化关系
%A Zhang Dong-Sheng
%A Jiang Li
%A Zhang Wei-Gang
%A Li Li-Jun
%A Fan Wan-De
%A Yuan Shu-Zhong
%A Kai Gui-Yun
%A Dong Xiao-Yi
%A <br>张东生
%A 姜 莉
%A 张伟刚
%A 李丽君
%A 范万德
%A 袁树忠
%A 开桂云
%A 董孝义
%J 物理学报
%D 2003
%I 
%X In this paper we have derived the Bragg equation of long-period fiber gratings by using interference theory. According to the color centers model and Kramers-Kronig principle, we have studied, theoretically and experimentally, the relationship between the resonant wavelength of the grating and its exposure. The result shows that the resonant wavelength of the long-period fiber grating changes with the UV exposure in the form of the sum of two decaying exponential functions an d the rate of change is controlled by the duty ratio of the mask. The resonant w avelength of the long-period fiber grating is inversely proportional to the duty ratio of the mask.
%K long period fiber gratings
%K resonant wavelength
%K duty ratio of the
%K mask<br>长周期光纤光栅，
%K 谐振波长，
%K 模板占空比
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=263120D6E79D1293&yid=D43C4A19B2EE3C0A&vid=286FB2D22CF8D013&iid=59906B3B2830C2C5&sid=926E926E38328FA8&eid=BD94C673B68A7261&journal_id=1000-3290&journal_name=物理学报&referenced_num=6&reference_num=12