20-Hz operation of an eye-safe cascade Raman laser with a Ba(NO3)2 crystal

N. Takei, S. Suzuki, F. Kannari

    研究成果: Article

    44 引用 (Scopus)

    抜粋

    Operation of a 1.598-μm eye-safe third-Stokes Raman laser with a Ba(NO3)2 crystal pumped by a 1.064-μm Nd:YAG laser is described. We observed a substantial decrease in the output energy during the first 50 s of the continuous operation at 20 Hz. The energy drop is ∼ 76% of the initial third-Stokes output. We confirmed negative thermal lensing and thermally induced birefringence in the crystal. With a concave cavity mirror at a matched curvature to the thermal lensing, we obtained an output energy of 11 mJ at 20 Hz. TEM00 output was also obtained with a smaller pump-beam diameter with a highest conversion efficiency of 15.5% for a pumping power of only 45 MW/cm2 (0.9 J/cm2).

    元の言語English
    ページ(範囲)521-527
    ページ数7
    ジャーナルApplied Physics B: Lasers and Optics
    74
    発行部数6
    DOI
    出版物ステータスPublished - 2002 4 1

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)
    • Physics and Astronomy(all)

    フィンガープリント 20-Hz operation of an eye-safe cascade Raman laser with a Ba(NO<sub>3</sub>)<sub>2</sub> crystal' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用