Spectral Characteristics of Mechanically Induced Long-Period Fibre Gratings by New Double-Layer Grating Templates

作     者：王新伟 张振宇 庄怀轩 盛秋琴 

作者机构：InstituteofPhysicsNankaiUniversityTianjin300071 

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

年 卷 期：2005年第22卷第8期

页      面：1951-1954页

核心收录：

学科分类：07[理学] 070302[理学-分析化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0704[理学-天文学] 

基　　金：南开大学本科生创新科研“百项工程”基金资助 

主　　题：LPFG MLPFG MLPFG 

摘      要：We design a new double-layer grating template, which has the advantages of period uniformity, period number adjustability and continuous period regulation. By studying the transmission spectrum under the new template, we also find some new characteristics different from traditional fibre gratings: the resonant wavelength is mainly determined by the grating period; the intensity of transmission peak loss lies in the external pressures; the bandwidth of transmission spectrum can be controlled by the period number. Therefore, various applications can be realized by optimizing the transmission spectrum by reasonably selecting the matched parameters.