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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 19 — Sep. 23, 2013
  • pp: 22166–22172

Pilot-symbols-aided cycle slip mitigation for DP-16QAM optical communication systems

Haiquan Cheng, Yan Li, Fangzheng Zhang, Jian Wu, Jianxin Lu, Guoyi Zhang, Jian Xu, and Jintong Lin  »View Author Affiliations

Optics Express, Vol. 21, Issue 19, pp. 22166-22172 (2013)

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A pilot-symbols-aided phase unwrapping (PAPU), which utilizes the time-division multiplexed pilot symbols that are transmitted with data, is proposed to do cycle slip detection and correction with the carrier phase estimation (CPE). Numerical simulations for 10 Gbaud dual-polarization 16-ary quadrature amplitude modulation (DP-16QAM) systems show that the block averaging quadrature phase-shift keying (QPSK) partitioning with PAPU greatly eliminates the performance degradation caused by cycle slips, maintains a low CS probability with less influence of filter length, and achieves a bit-error-rate (BER) performance below soft-decision forward error correction (FEC) limit 2 × 10−2 at 15 dB optical signal-to-noise ratio with only 1.56% overhead and 6 MHz combined laser linewidth.

© 2013 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.5060) Fiber optics and optical communications : Phase modulation

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: July 8, 2013
Revised Manuscript: August 12, 2013
Manuscript Accepted: September 4, 2013
Published: September 12, 2013

Haiquan Cheng, Yan Li, Fangzheng Zhang, Jian Wu, Jianxin Lu, Guoyi Zhang, Jian Xu, and Jintong Lin, "Pilot-symbols-aided cycle slip mitigation for DP-16QAM optical communication systems," Opt. Express 21, 22166-22172 (2013)

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