High-temperature sensor using a Fabry-Perot interferometer based on solid-core photonic crystal fiber  

作　　者：张菁 孙浩 荣强周 马玥 梁磊 徐琴芳 赵佩 冯忠耀 忽满利 乔学光 

机构地区：[1]Department of Physics,Northwest University

出　　处：《Chinese Optics Letters》2012年第7期27-29,共3页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.61077006,60727004,and 61077060);the National "863" Program of China(Nos. 2007AA03Z413 and 2009AA06Z203);the Ministry of Education Project of Science and Technology Innovation (No.Z08119);the Ministry of Science and Technology Project of International Cooperation(No.2008CR1063);Shaanxi Province Project of Science and Technology Innovation (Nos.2009ZKC01-19 and 2008ZDGC-14);Northwestern University Teaching and Research Project (Nos.YC07059 and KJG10036)

摘　　要：A micro Fabry-Perot interferometer （M-FPI） is constructed by splicing a short section of polarization- maintaining photonic crystal fiber （PM-PCF） to an end-cleaved single-mode fiber with controllable offset. Due to the high effective optical path difference induced by the solid core of the PCF, the M-FPI has an ultrasmall cavity of approximately 110 μm. The temperature sensitivity within a range from 33 ℃ to approximately 600 ℃ is measured to be 13.8 pm/℃, which shows good agreement with the theoretical result. This proposed sensor has the advantages of ultracompact size and high stability. Therefore, it is suitable for various space-limited sensing applications in harsh environments.A micro Fabry-Perot interferometer （M-FPI） is constructed by splicing a short section of polarization- maintaining photonic crystal fiber （PM-PCF） to an end-cleaved single-mode fiber with controllable offset. Due to the high effective optical path difference induced by the solid core of the PCF, the M-FPI has an ultrasmall cavity of approximately 110 μm. The temperature sensitivity within a range from 33 ℃ to approximately 600 ℃ is measured to be 13.8 pm/℃, which shows good agreement with the theoretical result. This proposed sensor has the advantages of ultracompact size and high stability. Therefore, it is suitable for various space-limited sensing applications in harsh environments.

关 键 词：Nonlinear optics Photonic crystal fibers Single mode fibers Temperature sensors 

分 类 号：TN253[电子电信—物理电子学] TP212[自动化与计算机技术—检测技术与自动化装置]