基于 KTP 晶体的紧凑型 2-μm 百赫兹光参量振荡器

IF 3.1 3区物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION Infrared Physics & Technology Pub Date : 2024-08-28 DOI:10.1016/j.infrared.2024.105533

Chenjie Zhao , Yu Yu , Hengzhe Yu , Jian Yin , Chen Cao , Qifan Dang , Jianfeng Yue , Kai Li , Yunfei Li , Yulei Wang , Zhiwei Lu

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引用次数: 0

摘要

报告了一种基于 II 型非临界相位匹配 KTiOPO4 晶体（KTP）的 100 Hz 紧凑型 2 μm 光参量振荡器（OPO）。单片 KTP 晶体由被动 Q 开关 1064 nm Nd:YAG 激光器泵浦。在 100 Hz 的重复频率和 5.8 mJ 泵浦光单脉冲能量条件下，实现了 2128 nm 的激光输出，在退化点处的参量光最大值为 1.17 mJ，参量光脉冲宽度约为 10.5 ns，泵浦光到参量光的转换效率为 20.1%。

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Compact 2-μm Hundred Hertz optical parametric oscillator Based on KTP crystal

A 100 Hz compact 2 μm optical parametric oscillator (OPO) based on a type II non-critically phase-matched KTiOPO4 crystal (KTP) was reported. The monolithic KTP crystal was pumped with a passively Q-switched 1064 nm Nd:YAG laser. At a repetition rate of 100 Hz and a single pulse energy of 5.8 mJ of pump light, a 2128-nm laser output was achieved with a maximum of 1.17 mJ of parametric light at the degenerate point, with a parametric light pulse width of approximately 10.5 ns, corresponding to a pump to parametric light conversion efficiency of 20.1 %.

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来源期刊

Infrared Physics & Technology 物理-光学

CiteScore

5.70

自引率

12.10%

发文量

400

审稿时长

67 days

期刊介绍： The Journal covers the entire field of infrared physics and technology: theory, experiment, application, devices and instrumentation. Infrared'' is defined as covering the near, mid and far infrared (terahertz) regions from 0.75um (750nm) to 1mm (300GHz.) Submissions in the 300GHz to 100GHz region may be accepted at the editors discretion if their content is relevant to shorter wavelengths. Submissions must be primarily concerned with and directly relevant to this spectral region. Its core topics can be summarized as the generation, propagation and detection, of infrared radiation; the associated optics, materials and devices; and its use in all fields of science, industry, engineering and medicine. Infrared techniques occur in many different fields, notably spectroscopy and interferometry; material characterization and processing; atmospheric physics, astronomy and space research. Scientific aspects include lasers, quantum optics, quantum electronics, image processing and semiconductor physics. Some important applications are medical diagnostics and treatment, industrial inspection and environmental monitoring.