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


Journal Article

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.

Full Text

Cited Authors

  • Zhang, B; Yan, L; Fazal, I; Zhang, L; Willner, AE; Zhu, Z; Gauthier, DJ

Published Date

  • February 2007

Published In

Volume / Issue

  • 15 / 4

Start / End Page

  • 1878 - 1883

PubMed ID

  • 19532426

Pubmed Central ID

  • 19532426

Electronic International Standard Serial Number (EISSN)

  • 1094-4087

International Standard Serial Number (ISSN)

  • 1094-4087

Digital Object Identifier (DOI)

  • 10.1364/oe.15.001878


  • eng