Influence of pre-and post-compensation of chromatic dispersion on equalization enhanced phase noise in coherent multilevel systems
2011 (English)In: Journal of optical communications, ISSN 0173-4911, Vol. 32, 257-261 p.Article in journal (Refereed) Published
In this paper we present a comparative study of the equalization enhanced phase noise (EEPN) for preand post-compensation of chromatic dispersion in high capacity and high constellation systems. This is - to our knowledge - the first detailed study in this area for precompensation systems. Our main results show that the local oscillator phase noise determines the EEPN influence in post-compensation implementations whereas the transmitter laser determines the EEPN in pre-compensation implementations. As a result of significance for the implementation of practical longer-range systems it is to be emphasized that the use of chromatic dispersion equalization in the optical domain - e.g. by the use of dispersion compensation fibers - eliminates the EEPN entirely. Thus, this seems an efficient solution for such systems operating at high constellations in the future.
Place, publisher, year, edition, pages
2011. Vol. 32, 257-261 p.
Comparative studies; Constellation systems; Dispersion-compensation fibers; Equalization enhanced phase noise (EEPN); High capacity; Local oscillators; Multi-level systems; Optical domains; Post-compensation; Pre-compensation; Quadrature phase shifts; Transmitter lasers, Chromatic dispersion; Dispersion compensation; Phase noise; Quadrature phase shift keying, Dispersions
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-95481DOI: 10.1515/JOC.2011.053ScopusID: 2-s2.0-84862909225OAI: oai:DiVA.org:kth-95481DiVA: diva2:528603
QC 201205282012-05-282012-05-282012-05-28Bibliographically approved