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Frequency-Domain Chromatic Dispersion Equalization Using Overlap-Add Methods in Coherent Optical System

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Published/Copyright: June 13, 2011
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Journal of Optical Communications
From the journal Volume 32 Issue 2

Abstract

The frequency domain equalizers (FDEs) employing two types of overlap-add zero-padding (OLA-ZP) methods are applied to compensate the chromatic dispersion in a 112-Gbit/s non-return-to-zero polarization division multiplexed quadrature phase shift keying (NRZ-PDM-QPSK) coherent optical transmission system. Simulation results demonstrate that the OLA-ZP methods can achieve the same acceptable performance as the overlapsave method. The required minimum overlap (or zero-padding) in the FDE is derived, and the optimum fast Fourier transform length to minimize the computational complexity is also analyzed.

Keywords.: Frequency domain equalizers (FDEs); overlapsave (OLS); overlap-add (OLA); chromatic dispersion (CD); quadrature phase shift keying (QPSK)
Corresponding author: T. Xu, Royal Institute of Technology, Stockholm, SE-16440, Sweden
Received: 2010-11-12
Accepted: 2011-03-17
Published Online: 2011-06-13
Published in Print: 2011-June

Copyright © 2011 De Gruyter

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https://doi.org/10.1515/joc.2011.022
Keywords for this article
Frequency domain equalizers (FDEs); overlapsave (OLS); overlap-add (OLA); chromatic dispersion (CD); quadrature phase shift keying (QPSK)

Articles in the same Issue

  1. Editorial 2/11
  2. Performance Analysis of OCDMA Based on AND Detection in FTTH Access Network Using PIN & APD Photodiodes
  3. Detectivity Performance of Quantum Wire Infrared Photodetectors
  4. Generation of Non-Uniform Pulses by an Eight Microstructured Optical Fiber Laser
  5. An Efficience Scheme to Reduce Burst Loss Rate and Supporting Differentiated Services in All-Optical Networks
  6. QoS Provisioning for TT-TR Based OBS Ring Networks
  7. A Novel Method of Inverse Multiplexing for Ultra Long Span Transmission
  8. Frequency-Domain Chromatic Dispersion Equalization Using Overlap-Add Methods in Coherent Optical System
  9. Transmission of 2.5 Gbit/s Spectrum-sliced WDM System for 50 km Single-mode Fiber
  10. Phase Noise Influence in Optical OFDM Systems employing RF Pilot Tone for Phase Noise Cancellation
  11. The Transporting Property of Hybrid SCM/Ethernet PON
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