44-ns continuously tunable dispersionless optical delay element using a PPLN waveguide with two-pump configuration, DCF, and a dispersion compensator

Yan Wang, Changyuan Yu, Lianshan Yan, Alan E. Willner, Rostislav Roussev, Carsten Langrock, Martin M. Fejer, Jay E. Sharping, Alexander L. Gaeta

Research output: Journal article publicationJournal articleAcademic researchpeer-review

51 Citations (Scopus)


This letter presents an optically controlled, continuously tunable, dispersionless optical delay element in fiber based on a selective wavelength converter using a periodically poled lithium-niobate waveguide with two-pump configuration, dispersion- compensated fiber, and a dispersion compensator. Optical phase information is preserved in this technique, and there is no fundamental limitation on pulsewidth or bit rate. A Continuous optical delay up to 44-ns is shown for 10-Gb/s nonreturn-to-zero applications, which is equal to a 440-bit slot.
Original languageEnglish
Pages (from-to)861-863
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number11
Publication statusPublished - 1 Jun 2007
Externally publishedYes


  • Nonlinear optics
  • Optical delay lines
  • Optical fiber communication
  • Optical fiber dispersion

ASJC Scopus subject areas

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

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