Transverse mode instability in fiber laser oscillators

被引：1
|
作者：
Dong, Liang [1 ,2 ]
Zervas, Michalis N. [3 ]
机构：
[1] Univ Clemson, Ctr Opt Mat Sci & Engn Technol COMSET, AMRL, 91 Technol Dr, Anderson, SC 29625 USA
[2] Univ Clemson, Dept Elect & Comp Engn, AMRL, 91 Technol Dr, Anderson, SC 29625 USA
[3] Univ Southampton, Optoelect Res Ctr, Southampton SO171BJ, England
来源：
OPTICS EXPRESS | 2023年 / 31卷 / 15期
关键词：
THERMAL RAYLEIGH-SCATTERING; POWER; AMPLIFIERS;
D O I：
10.1364/OE.495921
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
What we believe to be a first theoretical study of transverse mode instability (TMI) in oscillators based on a stimulated thermal Rayleigh scattering (STRS) model is conducted. Higher order mode (HOM) lasing is found to happen at high powers. Further fundamental mode (FM) growth is limited once HOM lasing takes place, with further increase of pump power mostly going to HOM growth, a fundamentally different phenomenon from that in fiber amplifiers. TMI thresholds defined as when the HOM lasing condition is met is studied. The results are consistent with the measured TMI thresholds and their dependence on pumping configurations and pump wavelengths. (c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
引用
收藏
页码：24964 / 24975
页数：12
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