Width-tunable optical RZ pulse train generation based on four-wave mixing in highly nonlinear fiber

Changyuan Yu, L. S. Yan, T. Luo, Y. Wang, Z. Pan, A. E. Willner

Research output: Journal article publicationJournal articleAcademic researchpeer-review

39 Citations (Scopus)


We demonstrate a simple technique for width-tunable optical return-to-zero pulse train generation based on four-wave mixing in highly nonlinear fiber. By electrically tuning the delay between two pump pulse trains, the pulsewidth of a generated pulse train is continuously tuned. In our experiment, the full-width at half-maximum (FWHM) of a 5G pulse train is tuned from 85 to 25 ps, and the FWHM of a 10G pulse train is tuned from 33 to 18 ps. And the simulation results show that the FWHM of a 40G pulse train can be tuned continuously from 10.6 to 2.9 ps. Negligible power penalty is observed after 59-km single-mode fiber and ll.4-km dispersion-compensation-fiber transmission for different pulsewidths at 10 Gb/s.
Original languageEnglish
Pages (from-to)636-638
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number3
Publication statusPublished - 1 Mar 2005
Externally publishedYes


  • Four-wave mixing (FWM)
  • Nonlinear optics
  • Optical fiber communication

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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