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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 18 — Sep. 1, 2008
  • pp: 13918–13932

Performance degradation in coherent polarization multiplexed systems as a result of polarization dependent loss

Mark Shtaif  »View Author Affiliations

Optics Express, Vol. 16, Issue 18, pp. 13918-13932 (2008)

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The ultimate limits introduced by polarization dependent loss (PDL) in coherent polarization multiplexed systems using advanced signal processing are studied. An analytical framework for effectively assessing the penalties is established and applied to systems with and without dynamically optimized launch polarization control. In systems with no launch polarization control, the PDL induced penalty is described by a simple formula and it is independent of the choice of constellation, or modulation format. The gain from optimizing launch polarizations is studied numerically and the mechanisms limiting it are described.

© 2008 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.1660) Fiber optics and optical communications : Coherent communications

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: May 12, 2008
Revised Manuscript: June 25, 2008
Manuscript Accepted: July 22, 2008
Published: August 25, 2008

Mark Shtaif, "Performance degradation in coherent polarization multiplexed systems as a result of polarization dependent loss," Opt. Express 16, 13918-13932 (2008)

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  1. J. Renaudier, G. Charlet, M. Salsi, O.B. Pardo, H. Mardoyan, P. Tran, S. Bigo, "Linear Fiber Impairments Mitigation of 40-Gbit/s Polarization-Multiplexed QPSK by Digital Processing in a Coherent Receiver," J. Lightwave Technol. 26, 36-42 (2008). [CrossRef]
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  3. C. Laperle, B. Villeneuve, Z. Zhang, D. McGhan, H. Sun, and M. O�??Sullivan, "WDM Performance and PMD Tolerance of a Coherent 40-Gbit/s Dual-Polarization QPSK Transceiver," J. Lightwave Technol. 26, 168-175 (2008). [CrossRef]
  4. H. Sun, K.-T. Wu, and K. Roberts, "Real-time measurements of a 40 Gb/s coherent system," Opt. Express 16, 873-879 (2008) [CrossRef] [PubMed]
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  6. M. Shtaif and A. Mecozzi, "Polarization-dependent loss and its effect on the signal-to-noise ratio in fiber-optic systems," IEEE Photon. Technol. Lett. 16, 671-673 (2004). [CrossRef]
  7. I.T. Lima, A.O Lima,Yu Sun, Hua Jiao,J. Zweck, C.R. Menyuk, G.M. Carter,"A receiver model for optical fiber communication systems with arbitrarily polarized noise," J. Lightwave Technol. 23, 1478-1490 (2004). [CrossRef]
  8. A. Mecozzi and M. Shtaif, "The statistics of polarization dependent loss in optical communication systems," IEEE Photon. Technol. Lett. 14, 313-315 (2002). [CrossRef]
  9. J. P. Gordon and H. Kogelnik, "PMD fundamentals," Proc. Natl. Acad. Sci. 97, 4541-4550 (2000). [CrossRef] [PubMed]
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  12. This is what happens when each channel passes through different optical routes before being multiplexed into the transmission fiber.

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