首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Efficient Nd:YAG pumped mid-IR laser based on cascaded KTP and ZGP optical parametric oscillators and a ZGP parametric amplifier
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Efficient Nd:YAG pumped mid-IR laser based on cascaded KTP and ZGP optical parametric oscillators and a ZGP parametric amplifier

机译:基于级联的KTP和ZGP光学参数振荡器和ZGP参数放大器的高效Nd:YAG抽运中红外激光器

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摘要

Efficient conversion into the mid-IR of a low pulse-energy (2.5 mJ) Nd:YAG laser is achieved by cascaded KTiOPO_(4) (KTP) and ZnGeP_(2) (ZGP) optical parametric oscillators followed by a ZGP optical parametric amplifier. The first stage 2.13 (mu)m degenerate KTP OPO uses four KTP crystals in a walk-off compensated geometry and an elliptical pump beam focal geometry to produce up to 2.2 W from 6.3 W incident. The 2.13 (mu)m e-ray pumps a Type-I ZGP OPO, which produces 0.5 W of light in the 3.8-4.8 (mu)m spectral region that in turn is amplified by a 2.13 (mu)m o-ray pumped optical parametric amplifier generating 0.84 W with an M~(2) of <2.
机译:通过级联KTiOPO_(4)(KTP)和ZnGeP_(2)(ZGP)光学参量振荡器以及ZGP光学参量放大器,可以有效地转换为低脉冲能量(2.5 mJ)Nd:YAG激光器的中红外。第一阶段的2.13μm简并KTP OPO使用四个具有离散补偿几何形状和椭圆泵浦束焦点几何形状的KTP晶体,可从6.3 W入射光产生高达2.2 W的功率。 2.13μm电子射线泵浦了I型ZGP OPO,它在3.8-4.8μm光谱范围内产生了0.5 W的光,然后被2.13μmo射线泵浦放大了光学参量放大器,产生0.84 W,M〜(2)<2。

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