Dual-wavelength operation of a flashlamp pumped narrow-linewidth Ti:Sapphire laser

Hideki Takeda, Yousuke Akabane, Fumihiko Kannari

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Abstract

Dual-wavelength operation of a flashlamp-pumped Ti:sapphire laser employing a modified grazing-incidence grating resonator with two tuning mirrors is described. Spatially resolved laser spectra in the output beam at the near field indicate that a large part of each wavelength laser beam oscillates in the separated gain volume. Linewidth of ˜16 pm is achieved for both laser wavelengths. Simultaneous second-harmonic generation of the dual-wavelength laser is also demonstrated in the spectral range of 390–420 nm with a β-BaB2O4 nonlinear crystal. The phase-matching angle of each wavelength is automatically satisfied in a fixed optical arrangement by using four dispersive prisms and a lens.

Original languageEnglish
Pages (from-to)655-653
Number of pages3
JournalJapanese journal of applied physics
Volume33
Issue number12R
DOIs
Publication statusPublished - 1994 Dec

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Keywords

  • Automatic phase-matching
  • Dual-wavelength
  • Flashlamp pump
  • Grazing-incidence grating
  • Narrow linewidth
  • Second-harmonic generation
  • Tiisapphire laser

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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