基于VS2/碲复合饱和吸收体的短脉冲被动调q ~ 2.8 μm体激光器

IF 2.5 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-09-16 DOI:10.1016/j.optcom.2025.132452

Ting lun Xing , Xiao yu Wang , Hao Pei , Ao lin Jiang , Dun lu Sun , Jin long Zhang , Yu zong Gu

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引用次数: 0

摘要

二维材料的组装可以提供一种整合其优越性能的策略。本文采用溶剂热法合成了花瓣状的VS2自组装体，并采用液相剥离技术制备了VS2/碲（VS2/Te）复合饱和吸收镜（SAM）。开放孔径z扫描测量结果表明，VS2/Te复合材料在2.8 μm处的调制深度为~ 5.6%，总不饱和损耗为~ 2.4%，突出了其优异的饱和吸收性能。利用所制备的SAM，实现了2.8 μm左右的短脉冲被动调q Er:YAP激光操作。在8.1 W的吸收泵浦功率下，最小脉冲宽度为160.2 ns，重复频率为194.6 kHz，平均输出功率为0.65 W。这些结果表明，VS2/Te复合薄膜作为2.8 μm光开关器件具有优异的性能，可以在中红外区域产生短脉冲激光器。

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Short-pulsed passively Q-switched ∼2.8 μm bulk laser based on VS2/tellurene composite saturable absorber

The assembly of two-dimensional materials can provide a strategy for integrating their superior properties. In this work, the petal-shaped VS₂ self-assembly was synthesized via a solvothermal process and the VS₂/tellurene (VS₂/Te) composite saturable absorber mirror (SAM) was prepared by using the liquid-phase exfoliation technique. The open-aperture Z-scan measurements revealed that the VS₂/Te composite SAM exhibits a modulation depth of ∼5.6 % and a total unsaturated loss of ∼2.4 % at 2.8 μm, highlighting its excellent saturable absorption performance. With this as-prepared SAM, short-pulse passively Q-switched Er:YAP laser operation around 2.8 μm was realized. Under an absorbed pump power of 8.1 W, the minimum pulse width of 160.2 ns with a repetition rate of 194.6 kHz and average output power of 0.65 W was achieved. These results show the outstanding performance of the VS₂/Te composite film as an optical switching device at 2.8 μm, enabling the generation of short-pulse lasers in the mid-infrared region.

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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.