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Study of EEPN mitigation using modified RF pilot and Viterbi-Viterbi based phase noise compensation
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO.
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO.
2013 (English)In: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 21, no 10, 12351-12362 p.Article in journal (Refereed) Published
Abstract [en]

We propose - as a modification of the optical (RF) pilot scheme - a balanced phase modulation between two polarizations of the optical signal in order to generate correlated equalization enhanced phase noise (EEPN) contributions in the two polarizations. The method is applicable for n-level PSK system. The EEPN can be compensated, the carrier phase extracted and the nPSK signal regenerated by complex conjugation and multiplication in the receiver. The method is tested by system simulations in a single channel QPSK system at 56 Gb/s system rate. It is found that the conjugation and multiplication scheme in the Rx can mitigate the EEPN to within 1/2 orders of magnitude. Results are compared to using the Viterbi-Viterbi algorithm to mitigate the EEPN. The latter method improves the sensitivity more than two orders of magnitude. Important novel insight into the statistical properties of EEPN is identified and discussed in the paper.

Place, publisher, year, edition, pages
2013. Vol. 21, no 10, 12351-12362 p.
Keyword [en]
Phase modulation, Polarization, Signal receivers, Viterbi algorithm
National Category
Other Physics Topics
Identifiers
URN: urn:nbn:se:kth:diva-125872DOI: 10.1364/OE.21.012351ISI: 000319339600069Scopus ID: 2-s2.0-84878587249OAI: oai:DiVA.org:kth-125872DiVA: diva2:641319
Funder
EU, FP7, Seventh Framework Programme, FP7-PEOPLE-2012-IAPP
Note

QC 20130816

Available from: 2013-08-16 Created: 2013-08-15 Last updated: 2017-12-06Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
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  • nn-NB
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  • Other locale
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Output format
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  • asciidoc
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