Mode-locked laser with flat-top beam output based on all polarization-maintaining fiber structure

被引：6
作者：
Ma, Xuexiao
Dai, Chuansheng
Lv, Jialiang
Lin, Jiaqiang
Yao, Peijun [1 ]
Xu, Lixin
机构：
[1] Univ Sci & Technol China, Sch Phys Sci, State Key Lab Particle Detect & Elect, Hefei 230026, Peoples R China
来源：
OPTICS AND LASER TECHNOLOGY | 2022年 / 156卷
关键词：
Beam synthesis; Flat-top beam; Mode-locked pulse; NOISE;
D O I：
10.1016/j.optlastec.2022.108496
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
By reason of the special intensity profile, the flat-top beam is applied in numerous fields. Utilizing fiber laser to generate the flat-top beam with excellent beam quality is gradually becoming a hot research topic in recent years. In this work, we propose a novel fiber laser that emits mode-locked pulse flat-top beam by the incoherent superposition of cylindrical vector modes (TM01) and fundamental modes (LP01). The beam obtained in our laser has a normalized root mean square (NRMS) of 0.127 and a steep degree Omega of 0.87 meaning the favorable effect of the experiment result. As far as we know, this laser is the first mode-locked pulse flat-top beam laser based on all polarization-maintaining fiber structure.
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页数：6
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