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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 7 — Apr. 8, 2013
  • pp: 8157–8165

Simple and efficient frequency offset tracking and carrier phase recovery algorithms in single carrier transmission systems

Meng Qiu, Qunbi Zhuge, Xian Xu, Mathieu Chagnon, Mohamed Morsy-Osman, and David V. Plant  »View Author Affiliations


Optics Express, Vol. 21, Issue 7, pp. 8157-8165 (2013)
http://dx.doi.org/10.1364/OE.21.008157


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Abstract

In this paper, we propose a low-complexity and efficient carrier recovery algorithm for single carrier transmission systems that is capable of tracking frequency offset (FO) variations. Working as a FO tracking estimator, the algorithm demonstrates good accuracy in simulation and a FO drift of up to 200 MHz/μs can be compensated with minimal degradation in a QPSK system. In 112 Gb/s dual polarization (DP) QPSK experiments, the algorithm recovers a data sequence having >80 MHz of FO drift within 250 μs, providing better performance than a one-time estimator. In a regime that utilizes parallel processing of the data, we further demonstrate FO tracking and carrier phase recovery (CPR) using only one of the streams in a parallelized configuration, and we apply the carrier information to recover neighbouring streams directly. Consequently, the complexity of both the FO tracking and the CPR is further reduced.

© 2013 OSA

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

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 6, 2013
Revised Manuscript: March 16, 2013
Manuscript Accepted: March 18, 2013
Published: March 28, 2013

Citation
Meng Qiu, Qunbi Zhuge, Xian Xu, Mathieu Chagnon, Mohamed Morsy-Osman, and David V. Plant, "Simple and efficient frequency offset tracking and carrier phase recovery algorithms in single carrier transmission systems," Opt. Express 21, 8157-8165 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-7-8157


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