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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
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