波长超过 2.4 μm 的高功率脉冲拉曼光纤激光器

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2024-11-25 DOI:10.1016/j.optlastec.2024.112170

Meng Wang , Deqin Ouyang , Yewang Chen , Minqiu Liu , Junqing Zhao , Zhijian Zheng , Chunbo Li , Shuangchen Ruan

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引用次数: 0

摘要

本文通过实验展示了基于单通受激拉曼散射的紧凑型高功率脉冲拉曼光纤激光器。利用自制的以 1994.7 nm 为中心、包络宽度为 20.8 ns 的类噪声脉冲激光器作为泵浦激光器，可提供 19.1 W 的最大输出功率，且无明显的光谱展宽。一阶拉曼激光器的工作波长为 2190.8 纳米，最大输出功率为 4.11 瓦，光谱纯度为 93%。此外，通过精细优化拉曼增益光纤的长度，实现了以 ∼2408.5 nm 为中心、最大功率为 ∼2.36 W 的二阶拉曼激光器，这代表了目前我们所知的硅芯光纤中 2.4 μm 拉曼激光器的最大值。高功率脉冲拉曼光纤激光器在高分子材料加工和光谱学方面具有潜在的应用前景。

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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High-power pulsed Raman fiber laser with wavelength over 2.4 μm

In this paper, the compact high-power pulsed Raman fiber lasers based on single-pass stimulated Raman scattering have been experimentally presented. Home-built noise-like pulse laser centered at ∼1994.7 nm with an envelope width of ∼20.8 ns was utilized as the pump laser, which can provide a maximal output power of ∼19.1 W without a notable spectral broadening. The 1st-order Raman laser operated at ∼2190.8 nm with a maximal output power of ∼4.11 W and a spectral purity of ∼93 % was achieved. Furthermore, by finely optimizing the length of Raman-gain fiber, the 2nd-order Raman laser centered at ∼2408.5 nm with a maximal power of ∼2.36 W was achieved, which represents the maximal value of Raman laser at 2.4 μm in silica-core fiber, to the best of our knowledge. The high-power pulsed Raman fiber lasers may have the potential applications in polymer material processing and spectroscopy.

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems