[PDF][PDF] LD 泵浦高平均功率, 高光束质量掺镱光纤激光振荡器与放大器研究进展

杨保来, 王鹏, 奚小明, 马鹏飞, 王小林, 王泽锋 - Acta Optica Sinica, 2023 - researching.cn
摘要综述了近年来公开报道的LD 泵浦光纤激光器的研究进展及典型结果, 分为光纤激光振荡器,
光纤激光放大器和“振荡+ 放大一体化” 激光器3 个部分进行介绍. 在光纤激光振荡器部分 …

Simplified expression for transverse mode instability threshold in high power fiber lasers

H Li, L Huang, H Wu, X Wang, P Zhou - Optics Express, 2024 - opg.optica.org
In this work, we propose an analytical expression for calculating the transverse mode
instability (TMI) threshold power, which clearly shows the role of various fiber parameters …

Transverse mode instability considering bend loss and heat load

L Dong - Optics Express, 2023 - opg.optica.org
Previously, we developed a highly efficient transverse mode instability model by integrating
stimulated thermal Rayleigh scattering and quasi-3D fiber amplifier models, enabling the …

LMA fibers with increased higher-order mode loss for high average power, pulsed, diffraction-limited lasers

Y Glick, J Pincha, I Kansal, R Windeler, V Lukonin… - Optics …, 2024 - opg.optica.org
We demonstrate new, large-mode area (LMA) gain fibers with∼ 25 µm mode-field diameter,
and increased higher-order mode loss that enable diffraction limited, pulsed fiber lasers …

[PDF][PDF] 高功率高光束质量级联泵浦掺镱光纤激光器研究进展

肖虎, 李瑞显, 吴函烁, 黄良金, 陈子伦, 杨欢… - Acta Optica …, 2023 - researching.cn
摘要级联泵浦方案具有泵浦光亮度高, 量子亏损小, 光纤热负荷低, 模式不稳定阈值高等优势,
是获得高功率光纤激光的主要技术方案. 目前, 万瓦级高光束质量光纤激光的实现在非线性效应 …

5.2 kW single-mode output power from a Yb 20/400 fiber with reduced thermo-optic coefficient

A Rosales-García, R Jensen… - Fiber Lasers XXI …, 2024 - spiedigitallibrary.org
We report the performance of an LMA Yb-doped fiber, designed for increasing the
transverse mode instability threshold and minimizing nonlinear effects in multi-kilowatt class …

High-temperature-insensitivity high-power Yb-doped fiber laser directly in-band pumping by 1018 nm laser diodes

Y Zhang, D Li, P Li, T Qi, S Du, Y Yang, H Zhong… - Optics Letters, 2024 - opg.optica.org
In this Letter, we demonstrate a high-power ytterbium-doped fiber laser (YDFL) based on a
directly in-band pumping scheme (DIPS) which employs 1018 nm laser diodes (LDs) as …

2mJ pulse energy, 420kW peak power, all-fiber amplifier with diffraction-limited beam quality

Y Glick, J Pincha, I Kansal, R Windeler… - Fiber Lasers XXI …, 2024 - spiedigitallibrary.org
We demonstrate record high energy of 2 mJ, with four nanosecond pulses a peak power of⪆
420 kW and average power of 660 W, in a fiber amplifier using a novel 26 μm mode-field …

Beam-combinable high-power fiber laser sources for directed energy applications

RH Holten, A Flores, T Ehrenreich… - High-Power Laser …, 2024 - spiedigitallibrary.org
We discuss methods and lessons learned during the integration and testing of five individual
kW-class fiber amplifiers seeded with pseudorandom phase-modulated light, using a 1x5 …