光学技术, 2007, 33 (6): 0899, 网络出版: 2010-06-03
宽带色散补偿光子晶体光纤的设计与优化
Design of photonic crystal fiber for broadband dispersion compensation
摘要
提出了一种新型的宽带色散补偿光子晶体光纤。通过增大光子晶体光纤(PCF)包层第一环空气孔半径r1,同时优化孔间距和包层其它环空气孔,在1550nm波长处获得了低至-1906.4ps/nm/km的负色散值。针对常规单模光纤的色散特性,设计出了宽带色散补偿光子晶体光纤,可补偿23倍长度的常规光纤,补偿的带宽达330nm,这在WDM系统中对多个信道同时进行色散补偿具有非常重要的意义。
Abstract
A novel photonic crystal fiber (PCF) is designed for broadband dispersion compensation. By increasing the size of the first ring air holes and tailoring other structural parameters,the PCF achieves a negative dispersion of-1906.4ps/nm/km at 1550nm. Furthermore,according to the dispersion property of the conventional fiber,the broadband dispersion compensation PCF is designed and the large normal dispersion is up to-398.9296ps/nm/km,which means it can compensate 23 times of length of conventional single-mode fiber within±0.2ps/nm/km over 330nm wavelength range. The PCF is a promising component for dispersion compensation in WDM system.
汪徐德, 罗爱平, 徐文成, 邓丽琼, 朱日丹, 刘颂豪. 宽带色散补偿光子晶体光纤的设计与优化[J]. 光学技术, 2007, 33(6): 0899. WANG XU-de, LUO Ai-ping, XU Wen-cheng, DENG Li-qiong, ZHU Ri-dan, LIU Song-hao. Design of photonic crystal fiber for broadband dispersion compensation[J]. Optical Technique, 2007, 33(6): 0899.