Gain-Switched Tm:YAG tunable single-longitudinal-mode laser using twisted-mode technique

IF 3.5 2区工程技术 Q2 OPTICS

Optics and Lasers in Engineering Pub Date : 2025-04-05 DOI:10.1016/j.optlaseng.2025.108990

Bingzheng Yan , Yibo Qin , Xikui Mu , Hui Chen , Chuanmeng Zhang , Yaoyao Qi , Jie Ding , Zhenxu Bai , Yulei Wang , Zhiwei Lu

引用次数: 0

Abstract

2 μm lasers are eye-safe and have extensive applications in differential absorption lidar (DIAL). This study demonstrated a Tm:YAG single-longitudinal-mode pulsed laser that employs the gain-switching principle in combination with the twisted-mode technique. With the repetition frequency of 1500 Hz, this laser achieved a maximum average output power of 111 mW, characterized by stable pulse output, a pulse width of 1.3436 μs, pulse energy of 74 μJ, and peak power of 55.08 W, resulting in a slope efficiency of 37.55 %. Additionally, the Tm:YAG laser exhibited wavelength tunability from 2006.7 nm to 2012.7 nm across different operating temperatures. This laser will play a certain guiding role in the design of the laser source for 2 μm DIAL.

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利用扭曲模技术的增益开关Tm:YAG可调谐单纵模激光器

2 μm激光器对人眼安全，在差分吸收激光雷达（DIAL）中有广泛的应用。本研究展示了一种结合增益开关原理和扭曲模技术的Tm:YAG单纵模脉冲激光器。在1500 Hz的重复频率下，该激光器最大平均输出功率为111 mW，脉冲输出稳定，脉冲宽度为1.3436 μs，脉冲能量为74 μJ，峰值功率为55.08 W，斜率效率为37.55%。此外，Tm:YAG激光器在不同的工作温度下具有2006.7 ~ 2012.7 nm的波长可调性。该激光器对2 μm DIAL激光源的设计具有一定的指导作用。

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

Optics and Lasers in Engineering 工程技术-光学

CiteScore

8.90

自引率

8.70%

发文量

384

审稿时长

42 days

期刊介绍： Optics and Lasers in Engineering aims at providing an international forum for the interchange of information on the development of optical techniques and laser technology in engineering. Emphasis is placed on contributions targeted at the practical use of methods and devices, the development and enhancement of solutions and new theoretical concepts for experimental methods. Optics and Lasers in Engineering reflects the main areas in which optical methods are being used and developed for an engineering environment. Manuscripts should offer clear evidence of novelty and significance. Papers focusing on parameter optimization or computational issues are not suitable. Similarly, papers focussed on an application rather than the optical method fall outside the journal''s scope. The scope of the journal is defined to include the following: -Optical Metrology- Optical Methods for 3D visualization and virtual engineering- Optical Techniques for Microsystems- Imaging, Microscopy and Adaptive Optics- Computational Imaging- Laser methods in manufacturing- Integrated optical and photonic sensors- Optics and Photonics in Life Science- Hyperspectral and spectroscopic methods- Infrared and Terahertz techniques