15.2 W spectrally flat all-fiber supercontinuum laser source with >1 W power beyond 3.8 μm

被引：60
作者：
Yin, Ke [1 ]
Zhang, Bin [1 ,2 ,3 ]
Yang, Linyong [1 ]
Hou, Jing [1 ,2 ,3 ]
机构：
[1] Natl Univ Def Technol, Coll Optoelect Sci & Engn, Changsha 410073, Hunan, Peoples R China
[2] Natl Univ Def Technol, Hunan Prov Key Lab High Energy Laser Technol, Changsha 410073, Hunan, Peoples R China
[3] Natl Univ Def Technol, Hunan Prov Collaborat Innovat Ctr High Power Fibe, Changsha 410073, Hunan, Peoples R China
来源：
OPTICS LETTERS | 2017年 / 42卷 / 12期
基金：
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词：
MIDINFRARED SUPERCONTINUUM; SPLICED SILICA; ZBLAN FIBER; GENERATION; AMPLIFICATION; EMISSION;
D O I：
10.1364/OL.42.002334
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this Letter, a high-power 1.9 -4.2 mu m supercontinuum (SC) laser source with a real all-fiber structure is reported. A 12 m length of ZBLAN fluoride fiber was used as the non-linear medium, which was pumped by a thulium-doped fiber amplifier through a firm fusion-spliced joint between silica fiber and itself. The obtained SC laser had a high spectral flatness with a maximal 10 dB bandwidth of 2090 nm spanning from 1960 to 4050 nm. A record power of 15.2W for an all-fiber mid-infrared SC laser was measured. The average spectral power density of this SC laser was as high as 7.2 mW/nm. In particular, the SC power beyond 3.0 and 3.8 mu m was 8.1 and 1.08Wwhich corresponded to a power ratio of 53.2% and 7.1%, respectively. This Letter, to the best of our knowledge, represents the brightest all-fiber mid-infrared SC laser, and provides a promising high-power pump light for SC generation in cascaded chalcogenide fibers. (C) 2017 Optical Society of America
引用
收藏
页码：2334 / 2337
页数：4
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