High flexibility FBG inscribing by point-by-point method via femtosecond laser: Technology, progress, and challenges

被引:3
|
作者
Zhang, Jianwei [1 ,2 ,3 ,4 ]
Zhao, Qiang [1 ,2 ]
Du, Dawei [1 ]
Zhu, Yuxue [5 ]
Zheng, Shengnan [6 ]
Chen, Dongying [1 ]
Cui, Jianlei [3 ,7 ]
机构
[1] Qilu Univ Technol, Inst Oceanog Instrumentat, Shandong Acad Sci, Qingdao 266061, Peoples R China
[2] Laoshan Lab, Qingdao 266237, Peoples R China
[3] Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Peoples R China
[4] Qingdao Univ, State Key Lab Biofibers & Ecotext, Qingdao 266061, Peoples R China
[5] Hainan Normal Univ, Sch Phys & Elect Engn, Haikou 571158, Peoples R China
[6] Ocean Univ China, Coll Phys & Optoelect Engn, Qingdao 266100, Peoples R China
[7] Xi An Jiao Tong Univ, Shaanxi Key Lab Intelligent Robots, Xian 710049, Peoples R China
来源
MATERIALS TODAY COMMUNICATIONS | 2024年 / 39卷
基金
中国国家自然科学基金;
关键词
FBG; Femtosecond laser; Point-by-point; High flexibility; Optical fiber sensor; FIBER-BRAGG GRATINGS; REFRACTIVE-INDEX SENSOR; POLYMER OPTICAL-FIBER; WAVE-GUIDE; THERMAL-STABILITY; STEP-INDEX; CORE FIBER; INSCRIPTION; SINGLE; MULTIMODE;
D O I
10.1016/j.mtcomm.2024.108760
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
FBG is a reflective structure present in the fiber with periodically perturbed effective refractive index. With the emergence of femtosecond lasers, the point-by-point method has been proven to have high flexibility in inscribing FBGs. However, specialized literature reviews are currently unavailable in the areas of inscribing FBGs by point-by-point method via femtosecond lasers, preventing researchers from accessing a comprehensive understanding. Herein, point-by-point technology via femtosecond lasers and recent progress for inscribing FBGs are reviewed. Its high flexibility characteristics have been summarized in detail, including in different types of optical fiber, FBG location and special spectra. The current development of equipment related to the high flexibility characteristic has also been proposed simultaneously, along with the challenges and perspectives on the FBG inscription by point-by-point method. Integrating the insights of this review with in-depth theoretical and experimental research, the fabricated FBG is expected to have a significant impact on industrial applications in extreme environment sensing, advanced fiber laser, artificial intelligence and robotics, biomedicine detection, and so on.
引用
收藏
页数:20
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