Hybrid Long-Period Fiber Grating with Multimode Fiber Core for Refractive Index Measurement
A refractive index(RI) sensor based on hybrid long-period fiber grating(LPFG) with multimode fiber core(MMFC) is proposed and demonstrated. The surrounding RI can be determined by monitoring the separation between the resonant wavelengths of the LPFG and MMFC since the resonant wavelengths of the LP...
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| Published in | 中国物理快报：英文版 no. 11; pp. 45 - 48 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
2017
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| Online Access | Get full text |
| ISSN | 0256-307X 1741-3540 |
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| Summary: | A refractive index(RI) sensor based on hybrid long-period fiber grating(LPFG) with multimode fiber core(MMFC) is proposed and demonstrated. The surrounding RI can be determined by monitoring the separation between the resonant wavelengths of the LPFG and MMFC since the resonant wavelengths of the LPFC and MMFC will shift in opposite directions when the surrounding RI changes. Fxperimental results show that the sensor possesses an enhanced sensitivity of 526.92 nm/RIU in the RI range of 1.387-1.394 RIU. The response to the temperature is also discussed. |
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| Bibliography: | 11-1959/O4 Min Shao;Xue-Guang Qiao;Xue-Liang Ren;De-Xing Yang;School of Science, Xi’an Shiyou University;Department of Physics, Northwestern Polytechnical University;School of Physics, Northwest University;Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry,Chinese Academy of Sciences |
| ISSN: | 0256-307X 1741-3540 |