Multi-resonance peaks fiber Bragg gratings based on largely-chirped structure

被引:3
|
作者
Chen, Chao [1 ]
Zhang, Xuan-Yu [2 ]
Wei, Wei-Hua [2 ]
Chen, Yong-Yi [1 ]
Qin, Li [1 ]
Ning, Yong-Qiang [1 ]
Yu, Yong-Sen [1 ]
机构
[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Luminescence & Applicat, Changchun 130033, Jilin, Peoples R China
[2] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Jilin, Peoples R China
基金
中国国家自然科学基金;
关键词
Femtosecond laser; Fiber Bragg gratings; Optical fiber sensors; Fiber optics; BY-POINT INSCRIPTION; FEMTOSECOND LASER; PHASE MASK; OPTICAL-FIBERS; SINGLE; FABRICATION; TECHNOLOGY;
D O I
10.1016/j.optcom.2017.12.004
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A composite fiber Bragg grating (FBG) with multi-resonance peaks (MRPs) has been realized by using femtosecond (fs) laser point-by-point inscription in single-mode fiber. This device contains a segment of largely-chirped gratings with the ultrahigh chirp coefficients and a segment of uniform high-order gratings. The observed MRPs are distributed in an ultra-broadband wavelength range from 1200 nm to 1700 nm in the form of quasi-period or multi-peak-group. For the 8th-order MRPs-FBG, we studied the axial strain and high-temperature sensing characteristics of different resonance peaks experimentally. Moreover, we have demonstrated a multi-wavelength fiber lasers with three-wavelength stable output by using a 9th-order MRPs-FBG as the wavelength selector. This work is significant for the fabrication and functionalization of FBGs with complicated spectra characteristics. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:150 / 154
页数:5
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