Frequency-domain chromatic dispersion equalization using overlap-add methods in coherent optical system
2011 (English)In: Journal of optical communications, ISSN 0173-4911, Vol. 27, no 2Article in journal (Refereed) Published
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 overlap-save 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.
Place, publisher, year, edition, pages
2011. Vol. 27, no 2
Telecommunications Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-35416ScopusID: 2-s2.0-84859220890OAI: oai:DiVA.org:kth-35416DiVA: diva2:428078
QC 201106292011-06-292011-06-292012-05-28Bibliographically approved