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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 5 — Mar. 10, 2014
  • pp: 5029–5036

Phase regeneration of DPSK signals in a silicon waveguide with reverse-biased p-i-n junction

Francesco Da Ros, Dragana Vukovic, Andrzej Gajda, Kjeld Dalgaard, Lars Zimmermann, Bernd Tillack, Michael Galili, Klaus Petermann, and Christophe Peucheret  »View Author Affiliations

Optics Express, Vol. 22, Issue 5, pp. 5029-5036 (2014)

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Phase regeneration of differential phase-shift keying (DPSK) signals is demonstrated using a silicon waveguide as nonlinear medium for the first time. A p-i-n junction across the waveguide enables decreasing the nonlinear losses introduced by free-carrier absorption (FCA), thus allowing phase-sensitive extinction ratios as high as 20 dB to be reached under continuous-wave (CW) pumping operation. Furthermore the regeneration properties are investigated under dynamic operation for a 10-Gb/s DPSK signal degraded by phase noise, showing receiver sensitivity improvements above 14 dB. Different phase noise frequencies and amplitudes are examined, resulting in an improvement of the performance of the regenerated signal in all the considered cases.

© 2014 Optical Society of America

OCIS Codes
(060.5060) Fiber optics and optical communications : Phase modulation
(070.4340) Fourier optics and signal processing : Nonlinear optical signal processing
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing

ToC Category:
Nonlinear Optics

Original Manuscript: December 13, 2013
Revised Manuscript: February 12, 2014
Manuscript Accepted: February 15, 2014
Published: February 25, 2014

Francesco Da Ros, Dragana Vukovic, Andrzej Gajda, Kjeld Dalgaard, Lars Zimmermann, Bernd Tillack, Michael Galili, Klaus Petermann, and Christophe Peucheret, "Phase regeneration of DPSK signals in a silicon waveguide with reverse-biased p-i-n junction," Opt. Express 22, 5029-5036 (2014)

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