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

Department of Electronics and Electrical Engineering

Research output: Contribution to journal › Article › peer-review

17 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 language	English
Pages (from-to)	1382-1386
Number of pages	5
Journal	Applied Optics
Volume	51
Issue number	9
DOIs	https://doi.org/10.1364/AO.51.001382
Publication status	Published - 2012 Mar 20

ASJC Scopus subject areas

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

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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.",

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AU - Kojou, Junichiro

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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

Abstract

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