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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 8 — Apr. 22, 2013
  • pp: 10166–10171

Differential carrier phase recovery for QPSK optical coherent systems with integrated tunable lasers

Irshaad Fatadin, David Ives, and Seb J. Savory  »View Author Affiliations

Optics Express, Vol. 21, Issue 8, pp. 10166-10171 (2013)

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The performance of a differential carrier phase recovery algorithm is investigated for the quadrature phase shift keying (QPSK) modulation format with an integrated tunable laser. The phase noise of the widely-tunable laser measured using a digital coherent receiver is shown to exhibit significant drift compared to a standard distributed feedback (DFB) laser due to enhanced low frequency noise component. The simulated performance of the differential algorithm is compared to the Viterbi-Viterbi phase estimation at different baud rates using the measured phase noise for the integrated tunable laser.

© 2013 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2330) Fiber optics and optical communications : Fiber optics communications

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: February 14, 2013
Revised Manuscript: March 11, 2013
Manuscript Accepted: April 8, 2013
Published: April 16, 2013

Irshaad Fatadin, David Ives, and Seb J. Savory, "Differential carrier phase recovery for QPSK optical coherent systems with integrated tunable lasers," Opt. Express 21, 10166-10171 (2013)

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