Ultrasensitive Mach-Zehnder Interferometric Temperature Sensor Based on Liquid-Filled D-Shaped Fiber Cavity
A liquid-filled D-shaped fiber (DF) cavity serving as an in-fiber Mach–Zehnder interferometer (MZI) has been proposed and experimentally demonstrated for temperature sensing with ultrahigh sensitivity. The miniature MZI is constructed by splicing a segment of DF between two single-mode fib...
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| Format: | Article |
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MDPI AG
2018-04-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/18/4/1239 |
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| author | Hui Zhang Shecheng Gao Yunhan Luo Zhenshi Chen Songsong Xiong Lei Wan Xincheng Huang Bingsen Huang Yuanhua Feng Miao He Weiping Liu Zhe Chen Zhaohui Li |
| author_facet | Hui Zhang Shecheng Gao Yunhan Luo Zhenshi Chen Songsong Xiong Lei Wan Xincheng Huang Bingsen Huang Yuanhua Feng Miao He Weiping Liu Zhe Chen Zhaohui Li |
| author_sort | Hui Zhang |
| collection | DOAJ |
| description | A liquid-filled D-shaped fiber (DF) cavity serving as an in-fiber Mach–Zehnder interferometer (MZI) has been proposed and experimentally demonstrated for temperature sensing with ultrahigh sensitivity. The miniature MZI is constructed by splicing a segment of DF between two single-mode fibers (SMFs) to form a microcavity (MC) for filling and replacement of various refractive index (RI) liquids. By adjusting the effective RI difference between the DF and MC (the two interference arms), experimental and calculated results indicate that the interference spectra show different degrees of temperature dependence. As the effective RI of the liquid-filled MC approaches that of the DF, temperature sensitivity up to −84.72 nm/°C with a linear correlation coefficient of 0.9953 has been experimentally achieved for a device with the MC length of 456 μm, filled with liquid RI of 1.482. Apart from ultrahigh sensitivity, the proposed MCMZI device possesses additional advantages of its miniature size and simple configuration; these features make it promising and competitive in various temperature sensing applications, such as consumer electronics, biological treatments, and medical diagnosis. |
| first_indexed | 2024-12-10T06:43:22Z |
| format | Article |
| id | doaj.art-02ce76bb92b546cc8c43e9132db27ba1 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-12-10T06:43:22Z |
| publishDate | 2018-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-02ce76bb92b546cc8c43e9132db27ba12022-12-22T01:58:43ZengMDPI AGSensors1424-82202018-04-01184123910.3390/s18041239s18041239Ultrasensitive Mach-Zehnder Interferometric Temperature Sensor Based on Liquid-Filled D-Shaped Fiber CavityHui Zhang0Shecheng Gao1Yunhan Luo2Zhenshi Chen3Songsong Xiong4Lei Wan5Xincheng Huang6Bingsen Huang7Yuanhua Feng8Miao He9Weiping Liu10Zhe Chen11Zhaohui Li12School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaDepartment of Electronic Engineering, College of Information Science and Technology, Jinan University, Guangzhou 510632, ChinaGuangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Jinan University, Guangzhou 510632, ChinaInstitute of Photonics Technology, Jinan University, Guangzhou 510632, ChinaState Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, ChinaDepartment of Electronic Engineering, College of Information Science and Technology, Jinan University, Guangzhou 510632, ChinaDepartment of Electronic Engineering, College of Information Science and Technology, Jinan University, Guangzhou 510632, ChinaDepartment of Electronic Engineering, College of Information Science and Technology, Jinan University, Guangzhou 510632, ChinaDepartment of Electronic Engineering, College of Information Science and Technology, Jinan University, Guangzhou 510632, ChinaSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaDepartment of Electronic Engineering, College of Information Science and Technology, Jinan University, Guangzhou 510632, ChinaGuangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Jinan University, Guangzhou 510632, ChinaState Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, ChinaA liquid-filled D-shaped fiber (DF) cavity serving as an in-fiber Mach–Zehnder interferometer (MZI) has been proposed and experimentally demonstrated for temperature sensing with ultrahigh sensitivity. The miniature MZI is constructed by splicing a segment of DF between two single-mode fibers (SMFs) to form a microcavity (MC) for filling and replacement of various refractive index (RI) liquids. By adjusting the effective RI difference between the DF and MC (the two interference arms), experimental and calculated results indicate that the interference spectra show different degrees of temperature dependence. As the effective RI of the liquid-filled MC approaches that of the DF, temperature sensitivity up to −84.72 nm/°C with a linear correlation coefficient of 0.9953 has been experimentally achieved for a device with the MC length of 456 μm, filled with liquid RI of 1.482. Apart from ultrahigh sensitivity, the proposed MCMZI device possesses additional advantages of its miniature size and simple configuration; these features make it promising and competitive in various temperature sensing applications, such as consumer electronics, biological treatments, and medical diagnosis.http://www.mdpi.com/1424-8220/18/4/1239micro-optical devicesfiber optics sensorsthermal effects |
| spellingShingle | Hui Zhang Shecheng Gao Yunhan Luo Zhenshi Chen Songsong Xiong Lei Wan Xincheng Huang Bingsen Huang Yuanhua Feng Miao He Weiping Liu Zhe Chen Zhaohui Li Ultrasensitive Mach-Zehnder Interferometric Temperature Sensor Based on Liquid-Filled D-Shaped Fiber Cavity Sensors micro-optical devices fiber optics sensors thermal effects |
| title | Ultrasensitive Mach-Zehnder Interferometric Temperature Sensor Based on Liquid-Filled D-Shaped Fiber Cavity |
| title_full | Ultrasensitive Mach-Zehnder Interferometric Temperature Sensor Based on Liquid-Filled D-Shaped Fiber Cavity |
| title_fullStr | Ultrasensitive Mach-Zehnder Interferometric Temperature Sensor Based on Liquid-Filled D-Shaped Fiber Cavity |
| title_full_unstemmed | Ultrasensitive Mach-Zehnder Interferometric Temperature Sensor Based on Liquid-Filled D-Shaped Fiber Cavity |
| title_short | Ultrasensitive Mach-Zehnder Interferometric Temperature Sensor Based on Liquid-Filled D-Shaped Fiber Cavity |
| title_sort | ultrasensitive mach zehnder interferometric temperature sensor based on liquid filled d shaped fiber cavity |
| topic | micro-optical devices fiber optics sensors thermal effects |
| url | http://www.mdpi.com/1424-8220/18/4/1239 |
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