Low-Temperature Crosstalk Bending Sensor With High Sensitivity Based on a Super-Structure Long-Period Fiber Grating

被引：2
|
作者：
Zhang, Shuo [1 ]
Niu, Huiwen [2 ]
Cui, Suochao [1 ]
Chen, Jiong [1 ]
Shi, Qing [2 ]
Zhang, Buqiang [2 ]
机构：
[1] Huazhong Inst Electroopt, Wuhan Natl Lab Optoelect, Wuhan 430223, Peoples R China
[2] Beijing Res Inst Telemetry, Beijing 100076, Peoples R China
来源：
IEEE SENSORS JOURNAL | 2022年 / 22卷 / 24期
关键词：
Bending measurement; fiber sensor; long-period fiber grating (LPFG); multimode fiber (MMF); refractive index (RI) modulation; MACH-ZEHNDER INTERFEROMETER; SINGLE-MODE FIBER; OPTICAL-FIBER; CURVATURE;
D O I：
10.1109/JSEN.2022.3220271
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Anovel super-structurelong-period fiber grating (SLPFG) is proposed for bending measurement with high sensitivity. The experimental and simulated results show that the number of multimode fibers (MMF) in one period influences the excited coupling mode and its coupling efficiency. Meanwhile, the bend sensitivity is increased by optimizing the number of MMFs and reaches 17.237 dB/m(-1). More importantly, the temperature cross-sensitivity is one order of magnitude lower than most fiber bending sensors.
引用
收藏
页码：23975 / 23981
页数：7
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