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Generation of deep ultraviolet narrow linewidth laser by mixing frequency Ti:sapphire laser at 5 kHz repetition rate

机译:通过以5 kHz重复频率混合频率的Ti:蓝宝石激光器产生深紫外窄线宽激光器

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摘要

We demonstrate a scheme to generate deep ultraviolet source by the single-stage high-power Ti:sapphire laser with linewidth of 0.05 nm cryogenically operating at repetition rate of 5 kHz. The fundamental laser was tuned by an intracavity birefringent filter and three etalons with an output power greater than 8 W, corresponding to about 17percent optical efficiency. The pulse width was 112 ns and M2 < 1.1. By using the nonlinear crystals BiB_(3)O_(6) and KBe_(2)BO_(3)F_(2), the output power of 2.2 W at second harmonic and 8.5 mW at fourth harmonic laser of about 195 nm were produced. This compact high-repetition rate laser with narrow linewidth would be a promising tunable source for spectroscopy.
机译:我们展示了一种通过单级高功率Ti:蓝宝石激光器产生深紫外光源的方案,该激光器以5 kHz的重复频率进行低温操作的线宽为0.05 nm。基本激光由腔内双折射滤光片和三个标准具调谐,其输出功率大于8 W,相当于大约17%的光学效率。脉冲宽度为112 ns,M2 <1.1。通过使用非线性晶体BiB_(3)O_(6)和KBe_(2)BO_(3)F_(2),产生了约195 nm的二次谐波下的2.2 W和第四次谐波激光器下的8.5 mW的输出功率。这种具有窄线宽的紧凑型高重复频率激光器将成为光谱学的有希望的可调光源。

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