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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职:光电工程与仪器科学学院副院长
性别:男
毕业院校:中国科学院上海光学精密机械研究所
学位:博士
所在单位:光电工程与仪器科学学院
学科:光学工程. 测试计量技术及仪器. 通信与信息系统
联系方式:电话:0411-84706251
电子邮箱:xyhan@dlut.edu.cn
Athermal optical waveguide microring biosensor with intensity interrogation
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论文类型:期刊论文
发表时间:2015-12-01
发表刊物:OPTICS COMMUNICATIONS
收录刊物:SCIE、EI、Scopus
卷号:356
页面范围:41-48
ISSN号:0030-4018
关键字:Optical biosensor; Waveguide microring; Temperature sensitivity; Interrogation
摘要:The temperature sensitivity of optical waveguide microring (MR) is the critical factor to influence the performance of MR-based biosensor. An athermal MR-based biosensor with intensity interrogation is proposed and analyzed. The integrative biosensor chip is composed of sensing unit MR and interrogation unit Mach-Zehnder interferometer (MZI) with the same temperature sensitivity. The resonant wavelength shift of MR by temperature change is equal to the center wavelength shift of interrogation curve of MZI which cancel with each other during interrogation process. The polymer based integrative biosensor chip is designed and investigated. The simulation results show that the temperature sensitivity of the polymer waveguide biosensor is smaller than 1 pm/K with the temperature change between -10 K to 20 K relative to the reference temperature 20 degrees C and refractive index change from 0 to 0.05. The intensity interrogation method utilizing the power ratio between the two output ports of MZI has the flexibility of selecting large linear range and high resolution and is immune to output power fluctuations of the light source. (C) 2015 Elsevier B.V. All rights reserved.