Optical fiber Fabry-Perot interferometer for microorganism growth detection

被引：19
作者：
Liu, Xiaohui [1 ]
Jiang, Mingshun [1 ]
Sui, Qingmei [1 ]
Luo, Shuyang [1 ]
Geng, Xiangyi [1 ]
机构：
[1] Shandong Univ, Sch Control Sci & Engn, Jinan 250061, Shandong, Peoples R China
来源：
OPTICAL FIBER TECHNOLOGY | 2016年 / 30卷
关键词：
Optical fiber sensor; Fabry-Perot interferometer; Hollow-core photonic crystal fiber; Microorganism growth detection; PHOTONIC CRYSTAL FIBER; IN-LINE FIBER; REFRACTIVE-INDEX; TIP SENSOR; SACCHAROMYCES-CEREVISIAE; HUMIDITY SENSOR; BIOSENSOR; BACTERIA; FILM;
D O I：
10.1016/j.yofte.2016.01.014
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An optical fiber Fabry-Perot interferometer (FPI) based on hollow-core photonic crystal fiber (HCPCF) for microorganism growth detection is proposed and demonstrated. The FPI is formed by splicing both ends of a short section of HCPCF to SMFs and cleaving the SMF pigtail to a proper length. By measuring the fringe contrast of interference pattern, the refractive index (RI) changes of analyte during microorganism growth can be obtained. RI response of the sensor was investigated theoretically and experimentally. It shows linear response with sensitivity of -136 dB/RIU and good repeatability. Temperature response was also tested and the result confirms the low temperature cross-sensitivity of the sensor. Detection of yeast growth in liquid medium by the FPI sensor was conducted and the result shows the characteristic of typical yeast growth curve. With its advantages of high RI sensitivity, low temperature cross-sensitivity, capability for real-time measurement and so on, this FPI sensor has great potential in biosensing. (C) 2016 Elsevier Inc. All rights reserved.
引用
收藏
页码：32 / 37
页数：6
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