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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 4 — Feb. 19, 2007
  • pp: 1878–1883

Slow light on Gbit/s differential-phase-shift-keying signals

Bo Zhang, Lianshan Yan, Irfan Fazal, Lin Zhang, Alan E. Willner, Zhaoming Zhu, and Daniel. J. Gauthier  »View Author Affiliations

Optics Express, Vol. 15, Issue 4, pp. 1878-1883 (2007)

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We demonstrate, via simulation and experiment, slowing down of a phase-modulated optical signal. A 10.7-Gb/s NRZ-DPSK signal can be delayed by as much as 42 ps while still achieving error free via broadband SBS-based slow light. We further analyze the impact of slow-light-induced data-pattern dependence on both constructive and destructive demodulated ports. By detuning the SBS gain profile, we achieve 3-dB Q-factor improvement by the reduction of pattern dependence. Performance comparison between NRZ-DPSK and RZ-DPSK shows that robustness to slow-light-induced pattern dependence is modulation format dependent.

© 2007 Optical Society of America

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(060.5060) Fiber optics and optical communications : Phase modulation

ToC Category:
Slow Light

Original Manuscript: December 7, 2006
Revised Manuscript: February 7, 2007
Manuscript Accepted: February 8, 2007
Published: February 19, 2007

Bo Zhang, Lianshan Yan, Irfan Fazal, Lin Zhang, Alan E. Willner, Zhaoming Zhu, and Daniel J. Gauthier, "Slow light on Gbit/s differential-phase-shift-keying signals," Opt. Express 15, 1878-1883 (2007)

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