VSe2作为2 μm Tm: YAG激光器的可饱和吸收剂

IF 2.2 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-04-21 DOI:10.1016/j.optcom.2025.131907

Siqun Huo , Wenlong Yang , Huanli Wang , Zhaoyu Ma , Bangzheng Liu , Linjun Li

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引用次数: 0

摘要

首次成功将VSe2可饱和吸收体（SA）应用于Tm: YAG激光器，实现了在中心波长为2011.8 nm的被动调q （PQS）工作。采用液相剥离（LPE）技术制备了一种VSe2饱和吸收体，并对其微观结构和光学特性进行了表征。在连续波（CW）工作中，在入射泵浦功率为9.11 W的情况下，在2014.0 nm处实现了1.82 W的最大输出功率，相应的斜率效率为21.6%。在PQS工作中，实验采用双透过率（T = 5% / 2%）的输出耦合器（OC）反射镜，在56.12/69.61 kHz时，平均输出功率为376/217 mW，脉宽为589/522 ns。当温度为T = 5%时，PQS Tm: YAG激光器的脉冲能量为6.70 μ j，峰值功率为11.38 w， x轴和y轴的M2因子分别为1.11和1.04。

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VSe2 as saturable absorber for 2 μm Tm: YAG laser

For the first time, the VSe₂ saturable absorber (SA) was successfully applied in a Tm: YAG laser, enabling passively Q-switched (PQS) operation in the center wavelength of 2011.8 nm. A saturable absorber of VSe₂ was fabricated through liquid phase exfoliation (LPE) technology, and its microstructure and optical characteristics were thoroughly characterized. In the continuous wave (CW) operation, a maximum output power of 1.82 W at 2014.0 nm was achieved with an incident pump power of 9.11 W, corresponding to a slope efficiency of 21.6 %. In the PQS operation, an output coupler (OC) mirror with dual transmittance values (T = 5 %/2 %) was used in the experiment, and an average output power of 376/217 mW and a pulse width of 589/522 ns were achieved at 56.12/69.61 kHz. A 6.70-μJ per-pulse energy and a 11.38-W peak power were obtained with an OC of T = 5 %, and the M² factors of 1.11 and 1.04 in the x- and y-axis were acquired from the PQS Tm: YAG laser.

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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.