彭伟

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:女

毕业院校:大连理工大学

学位:博士

所在单位:物理学院

学科:光学工程. 光学

办公地点:物理与光电工程学院235

联系方式:wpeng@dlut.edu.cn

电子邮箱:wpeng@dlut.edu.cn

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Tuning operating point of extrinsic Fabry-Perot interferometric fiber-optic sensors using microstructured fiber and gas pressure

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论文类型:期刊论文

发表时间:2012-11-15

发表刊物:OPTICS LETTERS

收录刊物:SCIE、EI、Scopus

卷号:37

期号:22

页面范围:4672-4674

ISSN号:0146-9592

摘要:Intensity-based demodulation of extrinsic Fabry-Perot interferometric (EFPI) fiber-optic sensors requires the light wavelength to be on the quadrature point of the interferometric fringes for maximum sensitivity. In this Letter, we propose a novel and remote operating-point tuning method for EFPI fiber-optic sensors using microstructured fibers (MFs) and gas pressure. We demonstrated the method using a diaphragm-based EFPI sensor with a microstructured lead-in fiber. The holes in the MF were used as gas channels to remotely control the gas pressure inside the Fabry-Perot cavity. Because of the deformation of the diaphragm with gas pressure, the cavity length and consequently the operating point can be remotely tuned for maximum sensitivity. The proposed operating-point tuning method has the advantage of reduced complexity and cost compared to previously reported methods. (C) 2012 Optical Society of America