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Experimental investigation of Turbo-LDPC for high sensitivity coherent optical communications
Author(s): Quanyan Ning; Yan Li; Lei Yue; Miao Yu; Honghang Zhou; Jifang Qiu; Hongxiang Guo; Wei Li; Jian Wu
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Paper Abstract

We experimentally investigate the bit error rate(BER) performance of soft-decision low density parity check (LDPC) turbo decoding (Turbo-LDPC) in a 56Gbit/s high power sensitivity DQPSK coherent communication system. Power sensitivity of -38.3dBm and -39.3dBm are realized by using LDPC and Turbo-LDPC, respectively. Turbo-LDPC outperforms LDPC by 1dB. Turbo-LDPC successfully decodes signals with 1.8E-2 pre-(forward error correction) FEC BER and traditional LDPC decoder fails to decode error free above 2.6E-2 pre-FEC BER.

Paper Details

Date Published: 8 March 2018
PDF: 5 pages
Proc. SPIE 10697, Fourth Seminar on Novel Optoelectronic Detection Technology and Application, 106975P (8 March 2018); doi: 10.1117/12.2311444
Show Author Affiliations
Quanyan Ning, Beijing Univ. of Posts and Telecommunications (China)
Yan Li, Beijing Univ. of Posts and Telecommunications (China)
Lei Yue, Beijing Univ. of Posts and Telecommunications (China)
Miao Yu, Beijing Univ. of Posts and Telecommunications (China)
Honghang Zhou, Beijing Univ. of Posts and Telecommunications (China)
Jifang Qiu, Beijing Univ. of Posts and Telecommunications (China)
Hongxiang Guo, Beijing Univ. of Posts and Telecommunications (China)
Wei Li, Beijing Univ. of Posts and Telecommunications (China)
Jian Wu, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 10697:
Fourth Seminar on Novel Optoelectronic Detection Technology and Application
Weiqi Jin; Ye Li, Editor(s)

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