Experimental study of non-binary LDPC coding for long-haul coherent optical QPSK transmissions

Shaoliang Zhang, Murat Arabaci, Fatih Yaman, Ivan B Djordjevic, Lei Xu, Ting Wang, Yoshihisa Inada, Takaaki Ogata, Yasuhiro Aoki

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The performance of rate-0.8 4-ary LDPC code has been studied in a 50GHz-spaced 40Gb/s DWDM system with PDM-QPSK modulation. The net effective coding gain of 10dB is obtained at BER of 10-6. With the aid of time-interleaving polarization multiplexing and MAP detection, 10,560km transmission over legacy dispersion managed fiber is achieved without any countable errors. The proposed nonbinary quasi-cyclic LDPC code achieves an uncoded BER threshold at 4×10-2. Potential issues like phase ambiguity and coding length are also discussed when implementing LDPC in current coherent optical systems.

Original languageEnglish (US)
Pages (from-to)19042-19049
Number of pages8
JournalOptics Express
Volume19
Issue number20
DOIs
StatePublished - Sep 26 2011

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quadrature phase shift keying
coding
pulse duration modulation
multiplexing
ambiguity
modulation
fibers
thresholds
polarization

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Experimental study of non-binary LDPC coding for long-haul coherent optical QPSK transmissions. / Zhang, Shaoliang; Arabaci, Murat; Yaman, Fatih; Djordjevic, Ivan B; Xu, Lei; Wang, Ting; Inada, Yoshihisa; Ogata, Takaaki; Aoki, Yasuhiro.

In: Optics Express, Vol. 19, No. 20, 26.09.2011, p. 19042-19049.

Research output: Contribution to journalArticle

Zhang, S, Arabaci, M, Yaman, F, Djordjevic, IB, Xu, L, Wang, T, Inada, Y, Ogata, T & Aoki, Y 2011, 'Experimental study of non-binary LDPC coding for long-haul coherent optical QPSK transmissions', Optics Express, vol. 19, no. 20, pp. 19042-19049. https://doi.org/10.1364/OE.19.019042
Zhang, Shaoliang ; Arabaci, Murat ; Yaman, Fatih ; Djordjevic, Ivan B ; Xu, Lei ; Wang, Ting ; Inada, Yoshihisa ; Ogata, Takaaki ; Aoki, Yasuhiro. / Experimental study of non-binary LDPC coding for long-haul coherent optical QPSK transmissions. In: Optics Express. 2011 ; Vol. 19, No. 20. pp. 19042-19049.
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