Tan Zhong-Wei, Zheng Kai, Liu Yan, Fu Yong-Jun, Chen Yong, Cao Ji-Hong, Ning Ti-Gang, Dong Xiao-Wei, Ma Li-Na, Jian Shui-Sheng. Application of dispersion compensator based on chirped fiber gratings in ultra long-hual DWDM systemJ. Acta Physica Sinica, 2005, 54(11): 5218-5223. DOI: 10.7498/aps.54.5218