High sensitivity fiber temperature sensor based PDMS film on Mach-Zehnder interferometer

被引：55

作者：

Gong, Jiaqi ^{[1
]}

Shen, Changyu ^{[1
]}

Xiao, Yike ^{[1
]}

Liu, Shuyi ^{[1
]}

Zhang, Chong ^{[1
]}

Ding, Zeyi ^{[1
]}

Deng, Huitong ^{[1
]}

Fang, Jiahao ^{[1
]}

Lang, Tingting ^{[1
]}

Zhao, Chunliu ^{[1
]}

Chen, Yi ^{[1
]}

机构：

[1] China Jiliang Univ, Inst Optoelect Technol, Hangzhou 310018, Zhejiang, Peoples R China

来源：

OPTICAL FIBER TECHNOLOGY | 2019年 / 53卷

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Optical fiber sensor; Mach-Zehnder interferometer; PDMS; REFRACTIVE-INDEX; HUMIDITY;

D O I：

10.1016/j.yofte.2019.102029

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 temperature sensor based on a Mach-Zehnder interferometer (MZI) coated with a film of polydimethylsiloxane (PDMS) was demonstrated. The MZI was fabricated by a fiber mismatch structure through core-offset fusion splicing method. The resonant dip wavelength of the MZI will shift with the changing of the environmental temperature own to the effects of expansion and thermo-optic of the PDMS. Experimental results showed that the proposed sensor shows the temperature sensitivity of 0.101 nm/degrees C under the temperature range of 20 degrees C to 100 degrees C, which is about 2 times of the existing similar temperature fiber sensors.

引用

页数：4

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