1.4-W all-solid-state single-frequency Pr:LiYF4-LBO ring cavity laser at 320 nm

IF 2.5 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-10-13 DOI:10.1016/j.optcom.2025.132561

Ye Han , Yuhong Zhang , Guozhu Qin , Jianfa Chen , Dong Wang , Bin Xu

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引用次数: 0

Abstract

Frequency doubling of high-performance Pr³⁺-doped visible lasers to obtain continuous-wave (deep) ultraviolet lasers bring new opportunities to the miniaturization of (deep) ultraviolet lasers, and also provides opportunities for the application and development of more high-end miniaturized (deep) ultraviolet single frequency lasers. In this work, we report on a 640-nm single frequency laser with a maximum output power of 4.19 W by optimizing an all-solid-state Pr:LiYF₄ ring laser, and the beam quality of the laser is close to the diffraction limit. By incorporating a LBO crystal into the ring cavity for frequency conversion, more than 1.41 W single-frequency laser at 320 nm is also successfully achieved. The half-hour power stability of this ultraviolet single-frequency laser is measured to be about 0.54 %. This study indicates that the combination of Pr³⁺-doped visible laser intracavity frequency doubling and single frequency laser technology is a highly efficient and feasible method for realizing ultraviolet continuous wave single frequency lasers.

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1.4 w全固态单频Pr:LiYF4-LBO环形腔激光器，波长320 nm

高性能掺Pr3+可见激光器倍频获得连续波（深）紫外激光器为（深）紫外激光器的小型化带来了新的机遇，也为更高端的小型化（深）紫外单频激光器的应用和发展提供了机遇。本文通过对全固态Pr:LiYF4环形激光器的优化，获得了最大输出功率为4.19 W的640 nm单频激光器，激光器的光束质量接近衍射极限。通过在环形腔中加入LBO晶体进行频率转换，也成功地实现了320 nm波长超过1.41 W的单频激光。该紫外单频激光器半小时功率稳定性约为0.54%。本研究表明，将掺Pr3+的可见激光腔内倍频与单频激光技术相结合是实现紫外连续波单频激光的一种高效可行的方法。

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 Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.