双折射光纤环镜不等带宽交错复用器的研究  

A Novel Unequal Passband Interleaver Employing High Birefringence Fiber Sagnac Loop Mirror

作　　者：张婷[1] 陈凯[1] 赵帅[1] 李勇男[1] 魏峘[1] 盛秋琴[1] 

机构地区：[1]南开大学物理科学学院光电信息科学系,天津300071

出　　处：《光电子．激光》2005年第4期436-440,共5页Journal of Optoelectronics·Laser

摘　　要：提出将2段长度比为1∶2的双折射光纤加入环境构成全光纤不等带宽交错复用器的方案,并得到了参数选择的条件。选取了理论优化计算的一组数据进行实验,得到信道间隔为0.8 nm、奇偶信道-3 dB带宽为0.551 nm和0.247 nm的结果;研究了将其分别用于40 Gb/s和10 Gb/s传输速率的交错复用器时双折射光纤环镜中各项误差对其输出特性的影响。A novel design scheme of unequal passband interleaver filter is demonstrated.based on two segments of high birefringence fiber,length ratio 1∶2,in a sagnac loop mirror.The preferences condition of the interleaver which meets the maximal isolation and the characteristic of the output spectrum corresponding to twelve group of the parameter simulation is obtained.One set of optimized data is validated in the experimental result,which shows 0.8 nm spacing with -3 dB passband in odd channels and even channels of 0.551 nm and 0.247 nm,for transmission speed of 40 Gb/s and 10 Gb/s,respectively.The effect on the output characteristic due to the error in the birefringence fiber sagnac loop mirror was analyzed.

关 键 词：交错复用器 光纤环镜 不等 10Gb/s 40Gb/s 双折射光纤 3DB带宽 环境构成 参数选择 优化计算 信道间隔 输出特性 传输速率 全光纤 长度比 

分 类 号：TN929.11[电子电信—通信与信息系统] TN722.32[电子电信—信息与通信工程]