White-light-driven resonant fiber-optic strain sensor

被引：6
|
作者：
Zhao, Shuangxiang [1 ]
Liu, Qingwen [1 ]
He, Zuyuan [1 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Adv Commun Syst & Networks, 800 Dongchuan Rd, Shanghai 200240, Peoples R China
来源：
OPTICS LETTERS | 2020年 / 45卷 / 18期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1364/OL.400560
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Recently, laser-driven resonant fiber-optic sensors (FOSs) have been reported to reach the ultimate resolution limit, set by the thermal noise in fiber. However, they are still far away from commercialization because of their dependence on expensive and ultra-narrow-linewidth lasers. In this Letter, a white-light-driven resonant FOS is proposed for the first time, to the best of our knowledge. By using the white-light multi-beam interferometry, the resonant peaks of a fiber Fabry-Perot interferometer sensor are obtained, and the resonance drifts are tracked for sensor readout by using the Pound-Drever-Hall technique. The proposed FOS is adopted for strain measurement, and the achieved strain resolution (0.9 p epsilon/root Hz at 100 Hz) is comparable with that of laser-driven FOSs. (C) 2020 Optical Society of America
引用
收藏
页码：5217 / 5220
页数：4
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