作者机构:Key Lab. of Optical Fiber Communications Technology, Chongqing University of Posts and Telecommunications,Chongqing 400065, China
相关基金:This work has been supported by the National Natural Science Foundation of China (Nos.61071117, 61275077 and 61003256), the Natural Science Foundation of Chongqing C STC (No.2010BB2409), and the Science and Technology Foundation of Chongqing Municipal Education Commission (No.KJ 110519).