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高功率光纤激光中模式不稳定性现象研究进展

Progress of Study on Mode Instability in High Power Fiber Amplifiers

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摘要

模式不稳定指高功率光纤激光随着输出功率提升发生的由稳态基模输出突然变为非稳态高阶模式输出的模式突变,会导致光束质量下降,限制着衍射极限光束质量光纤激光输出功率的提升。介绍了高功率光纤激光中模式不稳定现象的产生机理以及相关的实验和理论研究,详细分析了模式不稳定现象的一些性质,总结了解决或抑制高功率光纤激光中模式不稳定现象的方法。最后,对高功率光纤激光模式不稳定现象研究的未来发展趋势进行了初步探讨。

Abstract

Mode instability (MI) is an abrupt mode change when the average output power increases above a certain threshold power, which results in degradation of beam quality and currently limits the power scaling of diffraction-limited high power fiber laser. The investigation progress on MI in high power fiber amplifiers is introduced in detail. The characteristics of MI are described and the ways to mitigateMI and increase the threshold power are summarized. The development trends of study on MI in high power fiber amplifier are briefly discussed.

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中图分类号:TN248.1

DOI:10.3788/lop51.020001

所属栏目:综述

责任编辑:胡冰

基金项目:国家自然科学基金(11274386)

收稿日期:2013-09-22

修改稿日期:2013-11-05

网络出版日期:2014-01-20

作者单位    点击查看

陶汝茂:国防科学技术大学光电科学与工程学院, 湖南 长沙 410073
周朴:国防科学技术大学光电科学与工程学院, 湖南 长沙 410073
肖虎:国防科学技术大学光电科学与工程学院, 湖南 长沙 410073
王小林:国防科学技术大学光电科学与工程学院, 湖南 长沙 410073
司磊:国防科学技术大学光电科学与工程学院, 湖南 长沙 410073
刘泽金:国防科学技术大学光电科学与工程学院, 湖南 长沙 410073

联系人作者:陶汝茂(taorumao@sohu.com)

备注:陶汝茂(1987—),男,硕士研究生,主要从事高功率光纤激光方面的研究。

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引用该论文

Tao Rumao,Zhou Pu,Xiao Hu,Wang Xiaolin,Si Lei,Liu Zejin. Progress of Study on Mode Instability in High Power Fiber Amplifiers[J]. Laser & Optoelectronics Progress, 2014, 51(2): 020001

陶汝茂,周朴,肖虎,王小林,司磊,刘泽金. 高功率光纤激光中模式不稳定性现象研究进展[J]. 激光与光电子学进展, 2014, 51(2): 020001

被引情况

【1】夏长明,田洪春,侯峙云,刘建涛,张飒,张卫,付建,吴嘉乐,周桂耀. 基于掺杂粉末直拉棒工艺掺镱光子晶体光纤激光特性. 中国激光, 2016, 43(2): 205001--1

【2】王小林,张汉伟,陶汝茂,粟荣涛,周朴,许晓军. LD抽运主振荡功率放大结构4.1 kW全光纤激光器. 中国激光, 2016, 43(5): 502002--1

【3】史 尘,陶汝茂,王小林,周 朴,许晓军,陆启生. 光纤激光模式不稳定的新现象与新进展. 中国激光, 2017, 44(2): 201004--1

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