Title :
Analysis of OSNR margin improvement in beyond 100Gb/s PDM-DQPSK systems due to FEC
Author :
Chang, Deyuan ; Yu, Fan ; Huang, Yuanda ; Mao, Bangning ; Fang, Yuanyuan ; Zeng, Li ; Xiong, Qianjin
Author_Institution :
Network Research Department, Huawei Technologies Co., Ltd., Shenzhen, 518129, China
Abstract :
The OSNR margin improvements due to FEC limit elevation in 112Gb/s PDM-DQPSK systems under two different receiver schemes, direct detection and coherent detection with digital signal processing (DSP), are analyzed.FEC limit elevation provides more benefit to the direct detection scheme than to the coherent detection scheme in 112Gb/s PDM-RZ-DQPSK system.
Keywords :
Bit rate; Digital signal processing; Forward error correction; Gas detectors; Optical interferometry; Optical noise; Optical receivers; Optical transmitters; Radio frequency; Signal to noise ratio;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
