Intensity-modulated Fiber-optic Refractive Index and Strain Sensor based on Miniaturized Modal Interferometer

被引：0
作者：
Zhang, Na [1 ,4 ]
Xu, Wei [2 ]
Yu, Changyuan [3 ,4 ]
You, Shanhong [1 ]
机构：
[1] Soochow Univ, Sch Elect & Informat Engn, Suzhou 215006, Peoples R China
[2] Anlight Optoelect Technol Inc, Suzhou 215123, Peoples R China
[3] Hong Kong Polytech Univ, Dept Elect & Informat Engn, Kowloon, Hong Kong, Peoples R China
[4] Natl Univ Singapore Suzhou, Res Inst, Suzhou 215123, Peoples R China
来源：
2016 15TH INTERNATIONAL CONFERENCE ON OPTICAL COMMUNICATIONS AND NETWORKS (ICOCN) | 2016年
基金：
中国国家自然科学基金;
关键词：
miniaturized modal interferometer; Mach-Zehnder interferometer; refractive index; strain; ABRUPT TAPER;
D O I：
暂无
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：
A novel intensity-modulated fiber-optic refractive index (RI) and strain sensor based on modal interferometer (MMI) is proposed. The sensing mechanism is mainly based on the Mach-Zehnder interferometer (MZI) constructed by one down taper spliced between dual up tapers on the single mode fiber (SMF). High-order cladding modes are efficiently excited owing to the mismatch of the mode filed diameter (MFD). Experimental investigations achieve a RI sensitivity of -22.437dBm/RIU and a strain sensitivity of 0.0008dBm/mu epsilon with R-2 of 0.9972 and 0.9962 respectively. It has to be noted that this MMI is only made of single SMF and is of low cost and easy fabrication.
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页数：3
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