摘要
新奇光 microfiber 不对称的 Fabry-Perot interferometric (MAFPI ) 传感器为力量和温度的同时的测量被开发。MAFPI 结构被弱纤维布拉格形成栅栏(FBG ) , microfiber 的节,和劈开的纤维结束出现。从低反射率的 FBG 反映的 narrowband 横梁和从夫累X尔思考的宽带横梁介入导致它的唯一的察觉到表演。察觉到的力量被检测导致的穗对比改变的拐弯损失执行,当布拉格波长移动为温度测量被采用时。9.8 pm/ 戠 ?猯'T 的敏感??
A novel optical microfiber asymmetric Fabry-Perot interferometric (MAFPI) sensor is developed for simultaneous measurement of force and temperature. The MAFPI structure is formed by a weak fiber Bragg grating (FBG), a section of the microfiber, and a cleaved fiber end surface. The narrowband beam reflected from the low-reflectivity FBG and the broadband beam from the Fresnel reflection interfere lead to its unique sensing performance. The force sensing is performed by detecting the bending-loss induced fringe contrast changes, while the Bragg wavelength shift is employed for temperature measurement. Sensitivities of 9.8pm/℃ and 0.025dB/μN were obtained experimentally for temperature and force measurements, respectively.
基金
This work is supported by the National Natural Science Foundation of China (61107073, 61107072 and 61290312), Fundamental Research Funds for the Central Universities (ZYGX2011J002), Research Fund for the Doctoral Program of Higher Education of China (20110185120020), Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT, IRT1218), and the 111 Project (B 14039). Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.