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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 26 — Dec. 12, 2011
  • pp: B836–B841

A comparison of modulation formats for passive optical networks

Domaniç Lavery, Carsten Behrens, and Seb J. Savory  »View Author Affiliations


Optics Express, Vol. 19, Issue 26, pp. B836-B841 (2011)
http://dx.doi.org/10.1364/OE.19.00B836


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Abstract

The sensitivity of the four-dimensional modulation format, polarization-switched quadrature phase shift keying (PS-QPSK), is compared with polarization division multiplexed QPSK (PDM-QPSK), binary phase shift keying (PDM-BPSK) and 8-ary quadrature amplitude modulation (PDM-8QAM) at a constant bitrate (12.5 Gbit/s) using a preamplified signal to improve receiver sensitivity. The sensitivity without preamplification is also obtained. PS-QPSK is found to maintain a sensitivity advantage over the reference formats in line with theory with an absolute sensitivity of −52.7 dBm (4.2 photons/bit), assuming hard decision FEC.

© 2011 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Access Networks and LAN

History
Original Manuscript: October 3, 2011
Revised Manuscript: November 3, 2011
Manuscript Accepted: November 22, 2011
Published: December 7, 2011

Virtual Issues
European Conference on Optical Communication 2011 (2011) Optics Express

Citation
Domaniç Lavery, Carsten Behrens, and Seb J. Savory, "A comparison of modulation formats for passive optical networks," Opt. Express 19, B836-B841 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-26-B836


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