摘要
An all-optical return-to-zero differential quadrature phase-shift keying (RZ-DQPSK) signal regeneration scheme is experimentally demonstrated.Thanks to the gain saturation effect,common quantum-well semiconductor optical amplifiers have the ability to regenerate the amplitude distorted RZ-DQPSK signal,so amplitude noise can be reduced while phase information will not be distorted.A significant eye-opening improvement and a negative power penalty of about 1 dB can be achieved for an 80 Gb/s RZ-DQPSK signal.
作者
吴文涵
黄喜
余宇
张新亮
WU Wen-Han;HUANG Xi;YU Yu;ZHANG Xin-Liang(Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074)
基金
Supported by the National Basic Research Program of China under Grant No 2011CB301704
the National Natural Science Foundation of China under Grant No 61007042
the State Key Laboratory of Advanced Optical Communication Systems and Networks under Grant No 2008SH10
the Doctoral Program Foundation of Institutions of Higher Education of China under Grant No 20090142110052
the Fundamental Research Funds for the Central Universities under Grant No HUST 2010QN041.
