Ultrashort laser pulse up-conversion amplification based on modulation instability

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Abstract

Colored conical emission via spatiotemporal modulational instability was observed in second harmonic generation of ultrashort laser pulses. By injecting accurately synchronized white-light super-continuum seed pulses, frequencies with maximal gain corresponding to the seed angle were amplified. The amplified pulse exhibited 150 μJ pulse energy and 60 nm spectral width (full width at half maximum) centered around 500 nm. Wide tunable range of the output wavelength up to 290 nm was realized by adjusting the input angle of the seed pulses.

Original languageEnglish
Pages (from-to)3749-3756
Number of pages8
JournalWuli Xuebao/Acta Physica Sinica
Volume54
Issue number8
DOIs
StatePublished - Aug 2005
Externally publishedYes

Keywords

  • Colored conical emission
  • Modulational instability
  • Modulational up-conversion amplification

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