DocumentCode
512014
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
Volume
2009-Supplement
fYear
2009
fDate
2-6 Nov. 2009
Firstpage
1
Lastpage
5
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. For the cases of non-ideal receivers employment and long haul fiber link transmission, FEC performance improvement is more profitable than that for the ideal BtB case.
Keywords
Digital signal processing; Forward error correction; Optical filters; Optical interferometry; Optical modulation; Optical noise; Optical receivers; Optical transmitters; Polarization; Signal to noise ratio; FEC; PDM-DQPSK; coherent detection; direct detection;
fLanguage
English
Publisher
ieee
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
Type
conf
Filename
5405282
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