Large-energy operation of an Er-doped fiber laser with ZrGeTe4 saturable absorber

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

Optical Fiber Technology Pub Date : 2024-09-17 DOI:10.1016/j.yofte.2024.103976

Yujia Xue , Hongqing Li , Dehua Wu , Jun Yu , Jing Wang , Kai Jiang , Huanian Zhang , Wenjing Tang , Wei Xia

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引用次数: 0

Abstract

ZrGeTe₄ as a layered semiconductor material with good stability and optoelectronic properties, and excellent saturable absorption characteristics, but its application in fiber lasers is still insufficient. In order to explore its application in fiber lasers, we prepared ZrGeTe₄-PVA thin film by liquid phase exfoliation and performed a series of characterizations. A modulation depth of 13.15 %, a non-saturated loss of 6.4 %, and a saturation intensity of 5.5 MW/cm² were obtained. Then used the ZrGeTe₄-PVA thin film as the saturable absorber (SA) in an Er-doped fiber laser (EDFL), the large-energy operation could be realized. In the case of a cavity length of 234 m, when the pump power was increased to 1229 mW, a maximum single pulse energy of about 32.72 nJ was achieved, with a repetition frequency of 859 kHz. To the best of our knowledge, this is the highest single-pulse energy achieved in an EDFL based on ZrGeTe₄-SA. This experiment shows that the ZrGeTe₄ is a promising two-dimensional (2D) material with good nonlinear absorption properties, proving that it is a promising pulse modulation of SA and laying a foundation for its subsequent study in fiber lasers.

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带有 ZrGeTe4 可饱和吸收器的掺铒光纤激光器的大能量运行

ZrGeTe4作为一种层状半导体材料，具有良好的稳定性和光电特性，以及优异的可饱和吸收特性，但其在光纤激光器中的应用仍显不足。为了探索其在光纤激光器中的应用，我们采用液相剥离法制备了 ZrGeTe4-PVA 薄膜，并进行了一系列表征。结果表明，调制深度为 13.15%，非饱和损耗为 6.4%，饱和强度为 5.5 MW/cm2。然后将 ZrGeTe4-PVA 薄膜用作掺铒光纤激光器（EDFL）中的可饱和吸收体（SA），实现了大能量运行。在腔长为 234 m 的情况下，当泵浦功率增加到 1229 mW 时，最大单脉冲能量约为 32.72 nJ，重复频率为 859 kHz。据我们所知，这是基于 ZrGeTe4-SA 的 EDFL 实现的最高单脉冲能量。该实验表明，ZrGeTe4 是一种具有良好非线性吸收特性的二维（2D）材料，证明它是一种很有前途的 SA 脉冲调制材料，并为其在光纤激光器中的后续研究奠定了基础。

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

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.