对称结构光纤光栅耦合器及其应用  

Symmetric fiber grating coupler and its application

作　　者：苏鹏[1] 杨华勇[1] 李智忠[1] 胡永明[1] 

机构地区：[1]国防科学技术大学光电科学与工程学院,长沙410073

出　　处：《应用光学》2006年第2期133-136,共4页Journal of Applied Optics

基　　金：国家自然科学基金资助项目(60377029)

摘　　要：光纤光栅耦合器(FGC)具有光纤光栅良好的波长选择特性和光纤耦合器的多端口特点,易于实现全光纤的光波分插复用。光纤光栅耦合器主要有4种结构:基于M-Z干涉仪的分离型、基于100%耦合器的非对称型、基于0耦合器的非对称型和基于100%耦合器的对称型。着重介绍对称结构光纤光栅耦合器的结构、工作原理和研究现状。提出了测试方案,并探讨了这种器件在大规模波分复用光纤传感器阵列中的应用。Fiber fiber grating as grating coup well as mult er （FGC） has good wavelength selection characteristic of optical port advantage of fiber coupler. These features make it easy to realize all-fiber optical add/drop multiplex （OADM）. Now there are four major types of FGCs. separated structure based on Mach Zehnder interferometer, dissymmetric structure based on 100% coupler, dissymmetric structure based on 0 coupler and symmetric structure based on 100% coupler. The structure, operation principle and present situation of the symmetric structure FGC are introduced emphatically. The test method for the device is proposed. Furthermore, the application of this device used in large-scale WDM optical fiber sensor arrays was also investigated.

关 键 词：光纤光学 光纤光栅耦合器 光分插复用器 波分复用 

分 类 号：TN253[电子电信—物理电子学]