A 10 kHz non-critical phase-matching 9.3–10.1 μm optical parametric oscillator based on BaGa4Se7 crystal

IF 3.4 3区物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION

Infrared Physics & Technology Pub Date : 2025-08-26 DOI:10.1016/j.infrared.2025.106096

Xiaoxiao Hua , Jinwen Tang , Minglang Wu , Wenhao Cheng , Zhitai Zhou , Baoquan Yao , Wenlong Yin , Heng Tu , Wentian Wu , Jiyong Yao , Tongyu Dai , Xiaoming Duan

引用次数: 0

Abstract

A 10 kHz non-critical phase matching (NCPM) optical parametric oscillator based on BaGa₄Se₇ crystal is demonstrated. By utilizing a dual-crystal cascade configuration, an average output power of 0.96 W at a wavelength of 9387 nm is achieved, with a slope efficiency of 5.73 %. In addition, the temperature-dependent wavelength-tuning characteristics of the BGSe crystal are systematically investigated. By decreasing the crystal temperature from 38 °C to 6 °C, an idler wavelength tuning range of 9387–10107 nm is achieved, corresponding to a central wavelength shift of 720 nm (22.5 nm/°C) and a linewidth variation of 40–60 nm. This study has unveiled the great potential of BGSe crystal in high power, high repetition rate long-wave infrared pulse generation.

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基于BaGa4Se7晶体的10 kHz非临界相位匹配9.3 ~ 10.1 μm光学参量振荡器

介绍了一种基于BaGa4Se7晶体的10 kHz非临界相位匹配（NCPM）光学参量振荡器。利用双晶级联结构，在9387 nm波长处平均输出功率为0.96 W，斜率效率为5.73%。此外，系统地研究了BGSe晶体随温度变化的波长调谐特性。通过将晶体温度从38℃降低到6℃，实现了9387 ~ 10107 nm的空转波长调谐范围，对应于720 nm （22.5 nm/℃）的中心波长位移和40 ~ 60 nm的线宽变化。该研究揭示了BGSe晶体在高功率、高重复率长波红外脉冲产生方面的巨大潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.