Intracavity second-harmonic generation at 320 nm of an actively Q-switched Pr :LiYF4 laser

Junichiro Kojou, Yoichiro Watanabe, Yosuke Kojima, Hiroyuki Nemoto, Fumihiko Kannari

    Research output: Contribution to journalArticle

    13 Citations (Scopus)

    Abstract

    We demonstrate pulse laser operation of a Pr : LiYF4 laser pumped by InGaN laser diodes (444 nm) using an acousto-optic modulator.We obtained a maximum laser peak power of 167W(4 μJ/pulse) with a pulse width of 24 ns at an 11 kHz repetition rate for a 63 nm wavelength. Employing an 8 mm long lithium triborate nonlinear crystal in the laser cavity, we obtained a maximumpeak power of 55W(2.7 μJ/pulse) at 320 nm, which corresponds to a conversion efficiency of 69% with respect to the fundamental laser energy. The UV laser pulse width was 36 ns.

    Original languageEnglish
    Pages (from-to)1382-1386
    Number of pages5
    JournalApplied Optics
    Volume51
    Issue number9
    DOIs
    Publication statusPublished - 2012 Mar 20

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics
    • Engineering (miscellaneous)
    • Electrical and Electronic Engineering

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