3.1 W mid-infrared fiber laser at 4.16 μm based on HBr-filled hollow-core silica fibers

被引：0

作者：

Zhou, Zhiyue ^{[1
,2
]}

Huang, Wei ^{[1
,2
]}

Cui, Yulong ^{[1
,2
]}

Li, Hao ^{[1
,2
]}

Pei, Wenxi ^{[1
,2
]}

Li, Xuanxi ^{[1
,2
]}

Li, Ziyan ^{[1
,3
]}

Wang, Meng ^{[1
,2
,3
]}

Wang, Zefeng ^{[1
,2
,3
]}

机构：

[1] Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Peoples R China

[2] Natl Univ Def Technol, Nanhu Laser Lab, Changsha 410073, Peoples R China

[3] State Key Lab Pulsed Power Laser Technol, Changsha 410073, Peoples R China

来源：

OPTICS LETTERS | 2022年 / 47卷 / 22期

基金：

中国国家自然科学基金;

关键词：

RADIATION; EMISSION;

D O I：

10.1364/OL.475690

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the characteristics of a continuous-wave (CW) mid-infrared fiber laser source based on HBr-filled hollow-core fibers (HCFs) made of silica. The laser source delivers a maximum output power of 3.1 W at 4.16 mu m, showing a record value for any reported fiber laser beyond 4 mu m. Both ends of the HCF are supported and sealed by especially designed gas cells with water cooling and inclined optical windows, withstanding higher pump power accompanied by accumulated heat. The mid-infrared laser exhibits a near -diffraction-limited beam quality with a measured M-2 of 1.16. This work paves the way for powerful mid-infrared fiber lasers beyond 4 mu m. (c) 2022 Optica Publishing Group

引用

页码：5785 / 5788

页数：4

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