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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)
http://dx.doi.org/10.1364/OE.15.001878


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Abstract

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

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

Citation
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)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-4-1878


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References

  1. R. W. Boyd and D. J. Gauthier, "Slow and fast light," in Progress in Optics, E.Wolf, ed. (Elsevier, Amsterdam, 2002), Vol. 43, chap. 6, pp. 497-530.
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  10. E. Shumakher, A. Willinger, R. Blit, D. Dahan and G. Eisenstein, "Large tunable delay with low distortion of 10 Gbit/s data in a slow light system based on narrow band fiber parametric amplification," Opt. Express 14, 8540-8545 (2006). [CrossRef] [PubMed]

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