高信道数FBG色散补偿器的设计  

Design of High-Channel-Count FBG Dispersion Compensator

作　　者：张守武[1] 秦子雄[1] 曾庆科[1] 吴清海[1] 欧启标[1] 

机构地区：[1]广西师范大学物理与电子工程学院

出　　处：《光纤与电缆及其应用技术》2007年第5期27-30,共4页Optical Fiber & Electric Cable and Their Applications

基　　金：广西自然科学基金(桂科回0448011)

摘　　要：随着密集波分复用(DWDM)技术向着高信道数方向发展,色散对光纤通信的限制也日趋严重。然而传统的色散补偿器只能补偿各信道色散值相同的情况。利用离散剥层法与遗传算法相结合的方法可以设计补偿各信道色散为任意值的色散补偿器。通过遗传算法对各信道插入相位的优化,可以使N信道的最大折射率调制幅度为单信道的N倍,极大减小了折射率调制幅度对信道数的限制。As the development of DWDM technology, fiber optic communications is more restricted by the optical fiber dispersion. However traditional dispersion compensator only can compensate the channels which have same dispersion. A special high-channel-count FBG dispersion compensator using discrete layer peering（DLP） and genetic algorithm（GA） methods is designed. This compensator can compensate the channels which have random dispersion value. Through optimizing the phase of channels by GA method, the amplitude of the maximum index modulation of N channels compensator is √N times of that of the signal channel compensator, so the restriction of index modulation on channel count is reduced greatly.

关 键 词：光纤光栅 遗传算法 色散补偿器 逆散射 

分 类 号：TN253[电子电信—物理电子学]