%0 Journal Article
%T Analysis of Interference Spectrum of Separated Long-Period Fiber Grating Pairs and Its Applications<br>级联长周期光纤光栅对的干涉谱分析及其在多信道滤波器中的应用
%A LIU Yu-min
%A YU Zhong-yuan
%A HAN Li-hong
%A LU Peng-fei
%A XU Zi-huan
%A <br>刘玉敏
%A 俞重远
%A 韩利红
%A 芦鹏飞
%A 徐子欢
%J 光子学报
%D 2008
%I 
%X The interference transmission spectrum of cascaded long-period fiber gratings, which is inserted a section of standard fiber, is investigated. Based on the design of key aspects, the particle swarm optimization (PSO) algorithm is used to design a flattened broadband transmission spectrum with transmission loss of nearly 50%. By cascading two such identical long period fiber gratings, a useful tunable multi-channel isolation filter is designed. The influence of polarization of the inserted fiber on the interference spectrum is discussed.
%K Diffraction and grating
%K All-optical devices
%K Long period grating
%K PSO<br>衍射和光栅
%K 全光器件
%K 长周期光栅
%K 滤波器
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=2FEEA013845FB72E327428A595090876&yid=67289AFF6305E306&vid=42425781F0B1C26E&iid=5D311CA918CA9A03&sid=784CFDF6185AED9D&eid=3263523096AC9895&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=11