倾角对光纤Bragg光栅型OADM性能的影响  

Effects of Tilt Angle on the Performances of OADM Using Fiber Bragg Gratings

作　　者：邹喜华[1] 潘炜[1] 罗斌[1] 张伟利[1] 王梦遥[1] 

机构地区：[1]西南交通大学计算机与通信工程学院,成都610031

出　　处：《光电子．激光》2004年第8期910-913,共4页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目(10174057);四川省应用基础研究资助项目(03JY029 048 1);西南交通大学科学研究基金项目(2001B11)

摘　　要：对带有光栅倾角的光纤Bragg光栅型OADM进行了理论研究。基于光栅倾角对光纤Bragg光栅反射特性的影响,分析了该器件的分光效率、同频串扰、邻道隔离度和附加损耗。数值结果表明:光栅倾角大于0.8°后,器件光学性能迅速劣化;光栅倾角将导致右端邻道隔离度和右端邻道信号附加损耗的急剧恶化。A theoretical study on OADM using fiber Bragg grating with a tile angle was presented. Based on the effect of tilt angle on the reflection characteristic of fiber Bragg grating, the extraction efficiency, the coherent crosstalk, the adjacent isolation and the excess loss were analyzed. The numerical results show that the device's optical performance drops rapidly if the tilt angle is larger than 0.8° the tilt angle results in the deterioration of the right adjacent isolation and the excess loss of right adjacent sign.

关 键 词：OADM 光纤BRAGG光栅 附加损耗 隔离度 同频串扰 器件 反射特性 光效率 性能 数值 

分 类 号：TN929[电子电信—通信与信息系统] TN253[电子电信—信息与通信工程]