An Ultrasensitive Long-Period Fiber Grating-Based Refractive Index Sensor with Long Wavelengths
The response of a novel long-period fiber grating (LPFG) with a period of 180 µm to a surrounding refractive index (RI) was investigated. The results displayed that, with the increase in RI of the surrounding media of cladding glass in the grating region, the resonant peak located at 1336.4 nm in th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-12-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/16/12/2205 |
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| author | Qiu-Shun Li Xu-Lin Zhang Jian-Guo Shi Dong Xiang Lan Zheng Yan Yang Jun-Hui Yang Dong Feng Wen-Fei Dong |
| author_facet | Qiu-Shun Li Xu-Lin Zhang Jian-Guo Shi Dong Xiang Lan Zheng Yan Yang Jun-Hui Yang Dong Feng Wen-Fei Dong |
| author_sort | Qiu-Shun Li |
| collection | DOAJ |
| description | The response of a novel long-period fiber grating (LPFG) with a period of 180 µm to a surrounding refractive index (RI) was investigated. The results displayed that, with the increase in RI of the surrounding media of cladding glass in the grating region, the resonant peak located at 1336.4 nm in the transmission spectrum gradually shifts towards a shorter wavelength, while the resonant peak located at 1618 nm gradually shifted towards a longer wavelength. Moreover, the resonant peak at 1618 nm is much more sensitive to the surrounding RI than that of the one at 1336.4 nm. Compared with the conventional LPFG and other types of wavelength-interrogated RI sensors, such as ring resonators, surface plasmon resonance sensors, and Fabry–Perot interferometric sensors, this novel LPFG possesses a higher sensitivity, which achieved 10,792.45 nm/RIU (RI unit) over a RI range of 1.4436–1.4489. |
| first_indexed | 2024-04-11T20:51:23Z |
| format | Article |
| id | doaj.art-c39fd11a9d3e43ae94c5b73fa199197e |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T20:51:23Z |
| publishDate | 2016-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-c39fd11a9d3e43ae94c5b73fa199197e2022-12-22T04:03:51ZengMDPI AGSensors1424-82202016-12-011612220510.3390/s16122205s16122205An Ultrasensitive Long-Period Fiber Grating-Based Refractive Index Sensor with Long WavelengthsQiu-Shun Li0Xu-Lin Zhang1Jian-Guo Shi2Dong Xiang3Lan Zheng4Yan Yang5Jun-Hui Yang6Dong Feng7Wen-Fei Dong8Key Biosensor Laboratory of Shandong Province, Biology Institute of Shandong Academy of Sciences, Jinan 250014, ChinaState Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, ChinaKey Biosensor Laboratory of Shandong Province, Biology Institute of Shandong Academy of Sciences, Jinan 250014, ChinaCAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, ChinaKey Biosensor Laboratory of Shandong Province, Biology Institute of Shandong Academy of Sciences, Jinan 250014, ChinaKey Biosensor Laboratory of Shandong Province, Biology Institute of Shandong Academy of Sciences, Jinan 250014, ChinaKey Biosensor Laboratory of Shandong Province, Biology Institute of Shandong Academy of Sciences, Jinan 250014, ChinaKey Biosensor Laboratory of Shandong Province, Biology Institute of Shandong Academy of Sciences, Jinan 250014, ChinaCAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, ChinaThe response of a novel long-period fiber grating (LPFG) with a period of 180 µm to a surrounding refractive index (RI) was investigated. The results displayed that, with the increase in RI of the surrounding media of cladding glass in the grating region, the resonant peak located at 1336.4 nm in the transmission spectrum gradually shifts towards a shorter wavelength, while the resonant peak located at 1618 nm gradually shifted towards a longer wavelength. Moreover, the resonant peak at 1618 nm is much more sensitive to the surrounding RI than that of the one at 1336.4 nm. Compared with the conventional LPFG and other types of wavelength-interrogated RI sensors, such as ring resonators, surface plasmon resonance sensors, and Fabry–Perot interferometric sensors, this novel LPFG possesses a higher sensitivity, which achieved 10,792.45 nm/RIU (RI unit) over a RI range of 1.4436–1.4489.http://www.mdpi.com/1424-8220/16/12/2205long-period fiber gratingrefractive indexsensortransmission spectrumlong wavelength |
| spellingShingle | Qiu-Shun Li Xu-Lin Zhang Jian-Guo Shi Dong Xiang Lan Zheng Yan Yang Jun-Hui Yang Dong Feng Wen-Fei Dong An Ultrasensitive Long-Period Fiber Grating-Based Refractive Index Sensor with Long Wavelengths Sensors long-period fiber grating refractive index sensor transmission spectrum long wavelength |
| title | An Ultrasensitive Long-Period Fiber Grating-Based Refractive Index Sensor with Long Wavelengths |
| title_full | An Ultrasensitive Long-Period Fiber Grating-Based Refractive Index Sensor with Long Wavelengths |
| title_fullStr | An Ultrasensitive Long-Period Fiber Grating-Based Refractive Index Sensor with Long Wavelengths |
| title_full_unstemmed | An Ultrasensitive Long-Period Fiber Grating-Based Refractive Index Sensor with Long Wavelengths |
| title_short | An Ultrasensitive Long-Period Fiber Grating-Based Refractive Index Sensor with Long Wavelengths |
| title_sort | ultrasensitive long period fiber grating based refractive index sensor with long wavelengths |
| topic | long-period fiber grating refractive index sensor transmission spectrum long wavelength |
| url | http://www.mdpi.com/1424-8220/16/12/2205 |
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