Analytical estimation of phase noise influence in coherent transmission system with digital dispersion equalization
2011 (English)In: Optics Express, ISSN 1094-4087, Vol. 19, no 8, 7756-7768 p.Article in journal (Refereed) Published
We present a novel investigation on the enhancement of phase noise in coherent optical transmission system due to electronic chromatic dispersion compensation. Two types of equalizers, including a time domain fiber dispersion finite impulse response (FD-FIR) filter and a frequency domain blind look-up (BLU) filter are applied to mitigate the chromatic dispersion in a 112-Gbit/s polarization division multiplexed quadrature phase shift keying (PDM-QPSK) transmission system. The bit-error-rate (BER) floor in phase estimation using an optimized one-tap normalized least-mean-square (NLMS) filter, and considering the equalization enhanced phase noise (EEPN) is evaluated analytically including the correlation effects. The numerical simulations are implemented and compared with the performance of differential QPSK demodulation system. (C) 2011 Optical Society of America
Place, publisher, year, edition, pages
2011. Vol. 19, no 8, 7756-7768 p.
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-34201DOI: 10.1364/OE.19.007756ISI: 000290482500074ScopusID: 2-s2.0-79953851378OAI: oai:DiVA.org:kth-34201DiVA: diva2:422115
QC 201106102011-06-102011-05-302012-05-28Bibliographically approved