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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 3, Iss. 7 — Jul. 1, 2011
  • pp: 587–593

Adaptive Modulation-Induced Reduction in Filter Concatenation Impairment for Optical OFDM Metro/Regional Systems

Elias Giacoumidis, Ioannis Tomkos, and J. M. Tang  »View Author Affiliations

Journal of Optical Communications and Networking, Vol. 3, Issue 7, pp. 587-593 (2011)

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The impact of optical OFDM (orthogonal frequency division multiplexing) with adaptive modulation on reducing the filter concatenation effect is investigated, for the first time, in intensity modulation and direct-detection transparent metropolitan/regional network systems incorporating cascaded reconfigurable optical add/drop multiplexers (ROADMs). The ROADMs considered are based on different optical filters including fiber Bragg grating, Chebyshev, thin film and wavelength-blocker/wavelength-selective switch devices. It is shown that, in comparison with conventional identical modulation, adaptive modulation can improve the system performance by a factor of up to 60%. The utilization of adaptive modulation can also significantly enhance the network tolerance to filter loss ripple, group delay ripple and frequency dip.

© 2011 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2430) Fiber optics and optical communications : Fibers, single-mode

ToC Category:
Research Papers

Original Manuscript: March 29, 2011
Revised Manuscript: June 2, 2011
Manuscript Accepted: June 2, 2011
Published: June 28, 2011

Elias Giacoumidis, Ioannis Tomkos, and J. M. Tang, "Adaptive Modulation-Induced Reduction in Filter Concatenation Impairment for Optical OFDM Metro/Regional Systems," J. Opt. Commun. Netw. 3, 587-593 (2011)

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