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Near-IR lasing in caesium vapour
Quantum Electronics Pub Date : 2021-04-28 , DOI: 10.1070/qel17545
A.A. Babin , M.V. Volkov , S.G. Garanin , S.A. Kovaldov , A.V. Kopalkin , S.M. Kulikov , S.N. Nosov , F.A. Starikov , A.V. Strakhov , V.V. Feoktistov , V.A. Shotniev

Lasing in caesium vapour is obtained at λ ∼ 3 μm (transitions 7P3/2 → 7S1/2 and 7P1/2 → 7S1/2). Longitudinal pumping is performed by the second harmonic of a parametric oscillator pumped by the second harmonic of a Nd3+-doped garnet laser. The pump wavelength corresponds to the 6S1/2 → 7P3/2 and 6S1/2 → 7P1/2 transitions of caesium atoms. The pump radiation has a spectral width of 12 cm−1, a pulse energy of 10 mJ, and a pulse repetition rate of 10 Hz. The IR laser pulse energy at a vapour cell temperature of 155 C is 100 μJ. The efficiency of pump energy conversion to the laser radiation energy at λ ∼ 3 μm is ∼1.5%.



中文翻译:

铯蒸气中的近红外激光

λ ∼ 3 μm处获得铯蒸气中的激光(跃迁 7P 3/2 → 7S 1/2和 7P 1/2 → 7S 1/2)。纵向泵浦由参量振荡器的二次谐波执行,参量振荡器由 Nd 3+掺杂石榴石激光器的二次谐波泵浦。泵浦波长对应于铯原子的 6S 1/2 → 7P 3/2和 6S 1/2 → 7P 1/2跃迁。泵浦辐射的光谱宽度为 12 cm -1,脉冲能量为 10 mJ,脉冲重复率为 10 Hz。蒸气室温度为 155 C 时的 IR 激光脉冲能量为 100 μJ。泵浦能量转换为λ ~ 3 μm的激光辐射能量的效率为~1.5%。

更新日期:2021-04-28
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