High-power mid-infrared femtosecond master oscillator power amplifier Er:ZBLAN fiber laser system

IF 5.2 1区物理与天体物理 Q1 OPTICS

High Power Laser Science and Engineering Pub Date : 2023-06-01 DOI:10.1017/hpl.2023.42

Linpeng Yu, Jinhui Liang, Qi Zeng, Jiachen Wang, Xing Luo, Jinzhang Wang, P. Yan, Fan-long Dong, Xing Liu, Q. Lue, C. Guo, S. Ruan

引用次数: 0

Abstract

Abstract High-power femtosecond mid-infrared (MIR) lasers are of vast importance to both fundamental research and applications. We report a high-power femtosecond master oscillator power amplifier laser system consisting of a single-mode Er:ZBLAN fiber mode-locked oscillator and pre-amplifier followed by a large-mode-area Er:ZBLAN fiber main amplifier. The main amplifier is actively cooled and bidirectionally pumped at 976 nm, generating a slope efficiency of 26.9%. Pulses of 8.12 W, 148 fs at 2.8 μm with a repetition rate of 69.65 MHz are achieved. To the best of our knowledge, this is the highest average power ever achieved from a femtosecond MIR laser source. Such a compact ultrafast laser system is promising for a wide range of applications, such as medical surgery and material processing.

查看原文本刊更多论文

大功率中红外飞秒主振功率放大器Er:ZBLAN光纤激光系统

高功率飞秒中红外(MIR)激光器在基础研究和应用中都具有重要意义。本文报道了一种由单模Er:ZBLAN光纤锁模振荡器和前置放大器以及大模区Er:ZBLAN光纤主放大器组成的高功率飞秒主振荡器功率放大器激光系统。主放大器在976 nm处主动冷却和双向泵浦，产生26.9%的斜率效率。在2.8 μm下实现了8.12 W、148 fs的脉冲，重复频率为69.65 MHz。据我们所知，这是迄今为止从飞秒MIR激光源获得的最高平均功率。这种紧凑的超快激光系统具有广泛的应用前景，如医疗手术和材料加工。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

High Power Laser Science and Engineering Physics and Astronomy-Nuclear and High Energy Physics

CiteScore

7.10

自引率

4.20%

发文量

401

审稿时长

21 weeks

期刊介绍： High Power Laser Science and Engineering (HPLaser) is an international, peer-reviewed open access journal which focuses on all aspects of high power laser science and engineering. HPLaser publishes research that seeks to uncover the underlying science and engineering in the fields of high energy density physics, high power lasers, advanced laser technology and applications and laser components. Topics covered include laser-plasma interaction, ultra-intense ultra-short pulse laser interaction with matter, attosecond physics, laser design, modelling and optimization, laser amplifiers, nonlinear optics, laser engineering, optical materials, optical devices, fiber lasers, diode-pumped solid state lasers and excimer lasers.