Pattern dependence of data distortion in slow-light elements

Lin Zhang, Ting Luo, Changyuan Yu, Wen Zhang, Alan E. Willner

Research output: Journal article publicationJournal articleAcademic researchpeer-review

22 Citations (Scopus)


Slow light has been proposed as a potential solution to all-optically tunable delay line. However, a slow-light element may degrade data quality in an optical communication system while decreasing group velocity of optical pulses. In this paper, pattern dependence of signal distortion is identified as a main reason for data degradation, which is caused by narrow-band amplitude and phase responses of the slow-light elements. We define figure of merit involving pulse delay and data degradation to optimize slow-light devices. It is shown that the pattern dependence can be reduced by detuning slow-light devices away from the signal carrier frequency, which allows using narrow-band slow-light techniques to increase normalized delay up to 0.8, with Q improvement of 2 dB.
Original languageEnglish
Pages (from-to)1754-1760
Number of pages7
JournalJournal of Lightwave Technology
Issue number7
Publication statusPublished - 1 Jul 2007
Externally publishedYes


  • Fast light
  • Optical buffer
  • Optical communication
  • Optical delay
  • Pattern dependence
  • Slow light

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Pattern dependence of data distortion in slow-light elements'. Together they form a unique fingerprint.

Cite this