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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 10 — May. 9, 2011
  • pp: 9044–9049

Nonlinear penalties in long-haul optical networks employing dynamic transponders

Danish Rafique and Andrew D. Ellis  »View Author Affiliations


Optics Express, Vol. 19, Issue 10, pp. 9044-9049 (2011)
http://dx.doi.org/10.1364/OE.19.009044


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Abstract

We report for the first time, the impact of cross phase modulation in WDM optical transport networks employing dynamic 28 Gbaud PM-mQAM transponders (m = 4, 16, 64, 256). We demonstrate that if the order of QAM is adjusted to maximize the capacity of a given route, there may be a significant degradation in the transmission performance of existing traffic for a given dynamic network architecture. We further report that such degradations are correlated to the accumulated peak-to-average power ratio of the added traffic along a given path, and that managing this ratio through pre-distortion reduces the impact of adjusting the constellation size of neighboring channels.

© 2011 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(060.4254) Fiber optics and optical communications : Networks, combinatorial network design
(060.4256) Fiber optics and optical communications : Networks, network optimization

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 7, 2011
Manuscript Accepted: February 22, 2011
Published: April 25, 2011

Citation
Danish Rafique and Andrew D. Ellis, "Nonlinear penalties in long-haul optical networks employing dynamic transponders," Opt. Express 19, 9044-9049 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-10-9044


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