S+C+L波段色散斜率补偿光子准晶体光纤(英文)  

Dispersion Slope Compensating Photonic Quasi-crystal Fiber over S+C+L Band

作　　者：李园[1] 范万德[1] 陈君[1] 卜凡华[1] 李海鹏[1] 

机构地区：[1]南开大学物理学院,天津300071

出　　处：《光子学报》2013年第11期1261-1266,共6页Acta Photonica Sinica

基　　金：The National Key Natural Science Foundation of China(No.11174154)

摘　　要：针对光纤通信中的色散补偿,尤其是密集波分复用系统的多信道同时补偿的需求,提出了一种用于宽带色散斜率补偿的光子准晶体光纤.该光纤结构包层空气孔为准晶体排列,并且在纤芯引入了中心缺陷.通过对光纤特性的数值分析表明,在1 460-1 625 nm的光通信波段,该结构光纤的相对色散斜率为0.004 4-0.002 9 nm^-1,相对色散斜率与标准单模光纤近似相等,且负色散值达-2 476 ps·nm^-1·km^-1.对标准单模光纤进行色散补偿后,在S＋C＋L波段色散值为（-0.5-0）ps·nm^-1·km^-1.该光纤可用于对当前光纤通信系统进行宽带色散补偿,实现多信道同时补偿,简化结构,并降低补偿成本.For multi-channel dispersion compensation in dense wavelength division multiplexing （DWDM） systems optical communication networks, a broadband dispersion slope compensating photonic quasi-crystal fiber （PQF） is proposed. The PQF has a six-fold symmetric quasi-periodic array of air holes in cladding and a high index rob in the concentric core. The simulating results of the dispersion slope and dispersion of PQF reveal that the relative dispersion slope （RDS） can reach a low value 0.004 4 nm-1 to 0.002 9 nm-1 that is equal to the standard single mode fiber （SMF） over S＋C＋L band approximately; the PQF can achieve dispersion slope compensation effectively, while obtain a larger negative dispersion coefficient of-2 476 ps·nm^-1·km^-1 over optical communication band 1 460 nm to 1 625 nm. The value of dispersion compensation result is （-0.5-0）ps·nm^-1·km^-1 to the SMF in the S＋C＋L band. The designed PQF can achieve multi-channel dispersion compensation, simplify the structure and reduce compensation costs, and then it can be used for wide-band dispersion slope compensation.

关 键 词：光子准晶体光纤 色散斜率 补偿 相对色散斜率 

分 类 号：TN253[电子电信—物理电子学]