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

doi:10.1364/AO.51.001382

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

電気情報工学科

研究成果: Article › 査読

17 被引用数 (Scopus)

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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.

本文言語	English
ページ（範囲）	1382-1386
ページ数	5
ジャーナル	Applied Optics
巻	51
号	9
DOI	https://doi.org/10.1364/AO.51.001382
出版ステータス	Published - 2012 3月 20

ASJC Scopus subject areas

原子分子物理学および光学
工学（その他）
電子工学および電気工学

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AU - Nemoto, Hiroyuki

AU - Kannari, Fumihiko

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N2 - 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.

AB - 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.

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

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