High energy Q-switched Tm:Ho co-doped fiber laser based on gallium-doped zinc oxide nanoparticle as saturable absorber

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-04-10 DOI:10.1016/j.optmat.2025.117043

Ahmed Shakir Al-Hiti, Bashayer Ismail Hamdallah, Shahad Hussam

引用次数: 0

Abstract

We demonstrated that Gallium Doped Zinc Oxide (Ga:ZnO) nanoparticles (NPs) can operate as saturable absorbers (SAs) in the 2 μm region. Casting and sonochemical methods fabricate Ga:ZnO NPs to form an absorber film. The laser system operates at 1959.42 nm with a 1.32 nm spectral bandwidth. The SA film generated a short pulse width of 1.57 μs with a repetition rate of 44.17 kHz, respectively. The laser system attained saturation intensity and modulation depth of 0.09 MW/cm² and 22 %. The proposed laser also achieved pulse energy and output power of about 5.7 mW and 129 nJ, respectively. This SA was used for the first time in laser applications, especially in the 2-μm region.

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基于掺镓氧化锌纳米颗粒作为可饱和吸收剂的高能调q Tm:Ho共掺光纤激光器

我们证明了镓掺杂氧化锌（Ga:ZnO）纳米粒子（NPs）可以在2 μm区域作为饱和吸收剂（SAs）工作。采用浇铸和声化学方法制备Ga:ZnO纳米粒子形成吸收膜。激光系统工作在1959.42 nm，光谱带宽为1.32 nm。SA膜产生的脉冲宽度为1.57 μs，重复频率为44.17 kHz。激光系统的饱和强度和调制深度分别为0.09 MW/cm2和22%。该激光器的脉冲能量和输出功率分别约为5.7 mW和129 nJ。该材料首次应用于激光领域，特别是在2-μm区域。

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.