<100 kHz linewidth, single-longitudinal mode 1064 nm laser with a high reflectivity Fabry-Perot etalon

IF 3.1 3区物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION

Infrared Physics & Technology Pub Date : 2025-04-12 DOI:10.1016/j.infrared.2025.105858

Xiaojie Chen , Renpeng Yan , Yugang Jiang , Rongwei Fan , Deying Chen , Xudong Li

引用次数: 0

Abstract

Coherent lidars have been widely used in various fields. Single-longitudinal mode (SLM) lasers are required as light sources of coherent lidars to enhance detection range and range resolution. In this study, we analyzed the SLM selection with a Fabry-Perot etalon about net gain difference and built a <100 kHz-linewidth Nd:YVO₄ single-longitudinal mode laser with one intracavity Fabry-Perot etalon with high reflectivity. The maximum power of the single longitudinal mode 1064 nm laser was 230 mW. The laser’s power fluctuated by 27 %, and the operation switched between single and multiple longitudinal modes. This study may provide insights into the Fabry-Perot etalon’s performance about linewidth reduction and the SLM laser’s frequency and power stability.

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线宽<100 kHz，单纵模1064 nm激光器，具有高反射率法布里-珀罗标准子

相干激光雷达已广泛应用于各个领域。为了提高相干激光雷达的探测距离和距离分辨率，需要采用单纵模激光作为光源。在本研究中，我们分析了净增益差的法布里-珀罗标准子对SLM的选择，并构建了具有高反射率的单腔法布里-珀罗标准子的100 khz线宽Nd:YVO4单纵模激光器。单纵模1064 nm激光器的最大功率为230 mW。激光功率波动27%，操作在单和多纵向模式之间切换。研究结果可为研究法布里-珀罗标准子的线宽减小性能以及SLM激光器的频率和功率稳定性提供参考。

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.