A four-wave mixing process of 4700 cm-1 Stokes-shift is stimulated by pumping a 20-cm commercial large-mode-area photonic crystal fiber with amplified Ti:sapphire femtosecond pulses. The phase-matching condition is realized through an intermodal scheme which promotes the process in the largely normal dispersion regime of the fiber. The walk-off effect of the interacting pulses is minimized by introducing an initial chirp to the pump pulses. Conversion efficiency over 7% from near-infrared pump input to visible anti-Stokes signal can be achieved.

Original languageEnglish (US)
Article number71952O
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2009
EventFiber Lasers VI: Technology, Systems, and Applications - San Jose, CA, United States
Duration: Jan 26 2009Jan 29 2009


  • Femtosecond pulse
  • Four-wave mixing
  • Multipole method
  • Photonic crystal fiber
  • Ti:sapphire laser

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Applied Mathematics
  • Electrical and Electronic Engineering
  • Computer Science Applications


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