用于脉冲光纤激光器的新型低成本可饱和吸收体--块状结构 VTe2

IF 2.6 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2024-11-24 DOI:10.1016/j.yofte.2024.104056

Kang Zhang , Yangyang Ren , Ming Feng , Jinyue Xie , Xu Sang , Feng Song

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引用次数: 0

摘要

在这项工作中，我们首先研究了块状结构碲化镉（VTe2）的可饱和吸收特性及其在 Q 开关脉冲发生中的应用。我们采用液相剥离法获得了块状结构的碲化镉（VTe2）薄片。制备的 VTe2-SA 具有良好的可饱和吸收特性，其可饱和强度为 0.24 MW/cm2，在 1.5 μm 区域的调制深度为 2.73%。此外，还构建了基于 VTe2-SA 的 Q 开关脉冲光纤激光器。调 Q 开关脉冲的重复率从 16.3 kHz 提高到 28.2 kHz，相应的脉冲持续时间从 6.8 μs 缩短到 3.5 μs。最大 Q 开关单脉冲能量为 91.5 nJ。这项研究表明，块状结构的 VTe2 可作为一种新型低成本 SA 材料，并为扩大 VTe2 在超快光子学中的应用开辟了一个新平台。

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Bulk-structured VTe2 as a novel low-cost saturable absorber for pulsed fiber lasers

In this work, we first investigate bulk-structured vanadium telluride (VTe₂) saturable absorption properties and its application in the Q-Switched pulse generation. Bulk-structured VTe₂ flakes have been obtained by the liquid phase exfoliation method. The prepared VTe₂-SA has good saturable absorption characteristics whose saturable intensity is 0.24 MW/cm², and the modulation depth is 2.73 % at 1.5 μm region. Furthermore, a Q-switched pulsed fiber laser based on VTe₂-SA is constructed. The repetition rate of the Q-switched pulses can be increased from 16.3 kHz to 28.2 kHz, and the corresponding pulse duration decreases from 6.8 to 3.5 μs. The maximum Q-switched single pulse energy is 91.5 nJ. This work suggests that bulk-structured VTe₂ can serve as a novel low-cost SA material and open up a new platform for expanding the applications of VTe₂ for ultrafast photonics.

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来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.