Up to 30 mW of broadly tunable CW green-to-orange light, based on sum-frequency mixing of Cr:forsterite and Nd:YVO<sub>4</sub> lasers期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Up to 30 mW of broadly tunable CW green-to-orange light, based on sum-frequency mixing of Cr:forsterite and Nd:YVO₄ lasers

Authors:	Jesper L Mortensen Alan McWilliam Christopher G Leburn Peter Tidemand-Lichtenberg Morten Thorhauge Jirí Janousek Christian TA Brown Alexander A Lagatsky Preben Buchhave Wilson Sibbett

Institution:	^aDepartment of Physics, Technical University of Denmark, DTU, Bygning 309044, Fysikvej, DK-2800 Kgs. Lyngby, Denmark ^bSchool of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews KY169SS, Scotland, United Kingdom

Abstract:	Efficient generation of continuous-wave (CW) tunable light in the yellow region is reported. The method is based on sum-frequency mixing of a tunable Cr⁴⁺:forsterite laser with a Nd:YVO₄ laser. A periodically poled lithium niobate crystal was placed intra-cavity in a Nd:YVO₄ laser, and the Cr⁴⁺:forsterite laser was single-passed through the non-linear media. With this setup, it was possible to generate up to 3 mW of yellow light smoothly tunable from 573 to 587 nm. This is the highest output demonstrated to date for a tunable diode pumped solid-state CW laser in this wavelength region. The ways to improve the efficiency further are discussed.

Keywords:	Tunable Yellow Cr:forsterite Sum-frequency generation Solid state
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