高灵敏度膜片式非本征法-珀干涉光纤水下超声传感器[EB/OL]
北京：中国科技论文在线
） 摘要： 提出了一种新型结构的膜片式非本征法珀干涉(DEFPI)光纤超声传感器
2、 School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024
本文所提出的基于熔石英结构的DEFPI光纤传感器
Xinsheng JIANG 3, （ 1、 School of Physics and Optoelectronic Technology, Dalian University of Technology, LiaoNing DaLian 116024
2、 大连理工大学物理与光电工程学院 大连 116024
） Abstract： In this paper, a novel structure of the diaphragm-based extrinsic Fabry-Pérot interferometric (DEFPI) optical fiber ultrasonic sensor with a through vent hole of the fused silica ferrule was present
In this sensor system, the amplified spontaneous emission (ASE) optical source and the Fabry-Pérot filter are used to adjust the wavelength of the operation point of the sensor
We performed the ultrasonic distance detection experiment from 1 cm to 31 cm and the sensor sensitivity experiment, and the pressure sensitivity of the sensor is 9
68 nm/kPa (66
69 nm/psi)
The sensitivity of the fusion silica structure DEFPI optical fiber is much higher than that of the HCPCF-ILFP (hollow-core photonic crystal fiber in-line fiber-optic Fabry-Pérot) and the fiber Bragg grating (FBG)
Keywords： Optical fiber sensors; Ultrasonic sensor; Extrinsic Fabry-Pérot interferometer; Diaphragm 下载PDF阅读器 PDF全文下载： 初稿 （ 342 ） 作者简介： Wenhua WANG is lecturer at the School of Science, Guangdong Ocean University
He received his BS degree in 2000 at the Department of Optoeletronic Engineering, Changchun Institute of Optics and Fine Mechanics, and MS degree in 2005 at the Department of Physics, Dalian University of Technology
He is currently working towards the Ph
D
degree at the School of Physics and Optoelectronic Engineering, Dalian University of Technology
通信联系人： Qingxu YU received the Ph
D
degree in 1990 at the Department of Physics, Dalian University of Technology, Dalian
He is professor at the School of Physics and Optoelectronic Engineering, Dalian University of Technology
Now his research interests are fiber-optic sensing technology, laser technology and photoacoustic spectroscopy technology
【收录情况】 中国科技论文在线： 王文华
（ 1、 大连理工大学物理与光电工程学院
