Orthogonally polarized Sm:YLF/Sm:LLF orange lasers with output power-ratio and wavelength tuning

IF 2.2 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-04-09 DOI:10.1016/j.optcom.2025.131852

Chu Chu , Xinghua Yang , Shuang Wang , Changli Li , Xinhua Fu

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引用次数: 0

Abstract

A continuous-wave (CW) orthogonally polarized dual-wavelength (OPDW) Sm³⁺:LiYF₄/Sm³⁺:LiLuF₄ (Sm:YLF/Sm:LLF) orange laser at 605 and 606 nm on the ⁴G_5/2 → ⁶H_7/2 transition with power-ratio tuning was demonstrated for the first time. The waist position of the pump beam were optimized to achieve high efficiency and balanced output powers of the OPDW orange laser. Under pumping with a frequency-doubled optically pumped semiconductor laser (2ω-OPSL) emitting 10 W at 479 nm, an OPDW orange laser at 605 and 606 nm was obtained with the highest total output power of 1.41 W. The highest total optical-to-optical conversion efficiency with respect to the absorbed pump power was 16.5 %. Furthermore, a CW OPDW Sm:YLF/Sm:LLF orange laser with wavelength tuning was also studied. The nine pairs of the OPDW orange lasers were realized by adjusting the Lyot filters. The highest total output power of 1.68 W was obtained at 605 and 606 nm with power ratio of 1:1, resulting in an optical-to-optical conversion efficiency of 22.5 % with respect to the absorbed pump power.

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具有输出功率比和波长可调谐的正交偏振Sm:YLF/Sm:LLF橙色激光器

首次在波长为 605 和 606 nm 的 4G5/2 → 6H7/2 转变波段上演示了可进行功率比调谐的连续波（CW）正交偏振双波长（OPDW）Sm3+:LiYF4/Sm3+:LiLuF4（Sm:YLF/Sm:LLF）橘色激光器。通过优化泵浦光束的腰部位置，实现了 OPDW 橙光激光器的高效率和均衡输出功率。在波长为 479 nm、功率为 10 W 的倍频光泵浦半导体激光器（2ω-OPSL）的泵浦下，获得了波长为 605 和 606 nm、总输出功率最高达 1.41 W 的 OPDW 橙光激光器。此外，还研究了波长可调的 CW OPDW Sm:YLF/Sm:LLF 橙激光器。通过调节 Lyot 滤波器，实现了九对 OPDW 橙光激光器。在波长为 605 和 606 nm、功率比为 1:1 时，获得了 1.68 W 的最高总输出功率，相对于吸收的泵浦功率，光-光转换效率达到 22.5%。

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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.