Fabrication of high-power fiber Bragg grating in double-clad fiber by femtosecond laser plane-by-plane technology

被引：1
|
作者：
Fu, Cailing [1 ]
Fan, Yu [1 ]
Liao, Changrui [1 ]
He, Jun [1 ]
Bao, Weijia [1 ]
Wang, Yiping [1 ]
机构：
[1] Shenzhen Univ, Guangdong & Hong Kong Joint Res Ctr Opt Fibre Sen, Key Lab Optoelect Devices & Syst,Coll Phys & Opto, Shenzhen Key Lab Photon Devices & Sensing Syst In, Shenzhen 518060, Peoples R China
来源：
ADVANCED FIBER LASER CONFERENCE, AFL2022 | 2022年 / 12595卷
基金：
中国国家自然科学基金;
关键词：
High-power fiber laser; Fiber Bragg grating; Femtosecond laser direct writing; Plane-by-plane;
D O I：
10.1117/12.2669077
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Two types of FBG were fabricated in the 20/400 mu m passive double-clad fiber (DCF) without coating (w/o-coating) and with coating (w-coating) by femtosecond laser plane-by-plane technology. The w/o-coating FBG with a central wavelength of 1060.62 nm, a reflectivity greater than 99.5% and a 3dB-bandwidth of 3.52 nm, the w-coating FBG with a central wavelength of 1080.10 nm, a reflectivity greater than 99.9% and a 3dB-bandwidth of 2.87 nm, respectively. To the best of our knowledge, this is the first report of fabricating high quality fiber Bragg grating in 20/400 mu m DCF using femtosecond laser direct writing method.
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页数：4
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