Highly sensitive multicore fiber accelerometer for low frequency vibration sensing
Abstract We report on a compact, highly sensitive all-fiber accelerometer suitable for low frequency and low amplitude vibration sensing. The sensing elements in the device are two short segments of strongly coupled asymmetric multicore fiber (MCF) fusion spliced at 180° with respect to each other....
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2020-09-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-020-73178-x |
| _version_ | 1818401556299513856 |
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| author | Josu Amorebieta Angel Ortega-Gomez Gaizka Durana Rubén Fernández Enrique Antonio-Lopez Axel Schülzgen Joseba Zubia Rodrigo Amezcua-Correa Joel Villatoro |
| author_facet | Josu Amorebieta Angel Ortega-Gomez Gaizka Durana Rubén Fernández Enrique Antonio-Lopez Axel Schülzgen Joseba Zubia Rodrigo Amezcua-Correa Joel Villatoro |
| author_sort | Josu Amorebieta |
| collection | DOAJ |
| description | Abstract We report on a compact, highly sensitive all-fiber accelerometer suitable for low frequency and low amplitude vibration sensing. The sensing elements in the device are two short segments of strongly coupled asymmetric multicore fiber (MCF) fusion spliced at 180° with respect to each other. Such segments of MCF are sandwiched between standard single mode fibers. The reflection spectrum of the device exhibits a narrow spectrum whose height and position in wavelength changes when it is subjected to vibrations. The interrogation of the accelerometer was carried out by a spectrometer and a photodetector to measure simultaneously wavelength shift and light power variations. The device was subjected to a wide range of vibration frequencies, from 1 mHz to 30 Hz, and accelerations from 0.76 mg to 29.64 mg, and performed linearly, with a sensitivity of 2.213 nW/mg. Therefore, we believe the accelerometer reported here may represent an alternative to existing electronic and optical accelerometers, especially for low frequency and amplitude vibrations, thanks to its compactness, simplicity, cost-effectiveness, implementation easiness and high sensitivity. |
| first_indexed | 2024-12-14T07:54:21Z |
| format | Article |
| id | doaj.art-1303179b789a4abfa038301364ef54bd |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-14T07:54:21Z |
| publishDate | 2020-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-1303179b789a4abfa038301364ef54bd2022-12-21T23:10:35ZengNature PortfolioScientific Reports2045-23222020-09-0110111110.1038/s41598-020-73178-xHighly sensitive multicore fiber accelerometer for low frequency vibration sensingJosu Amorebieta0Angel Ortega-Gomez1Gaizka Durana2Rubén Fernández3Enrique Antonio-Lopez4Axel Schülzgen5Joseba Zubia6Rodrigo Amezcua-Correa7Joel Villatoro8Department of Communications Engineering, University of the Basque Country UPV/EHUDepartment of Communications Engineering, University of the Basque Country UPV/EHUDepartment of Communications Engineering, University of the Basque Country UPV/EHUDepartment of Communications Engineering, University of the Basque Country UPV/EHUCREOL -The College of Optics and Photonics, University of Central FloridaCREOL -The College of Optics and Photonics, University of Central FloridaDepartment of Communications Engineering, University of the Basque Country UPV/EHUCREOL -The College of Optics and Photonics, University of Central FloridaDepartment of Communications Engineering, University of the Basque Country UPV/EHUAbstract We report on a compact, highly sensitive all-fiber accelerometer suitable for low frequency and low amplitude vibration sensing. The sensing elements in the device are two short segments of strongly coupled asymmetric multicore fiber (MCF) fusion spliced at 180° with respect to each other. Such segments of MCF are sandwiched between standard single mode fibers. The reflection spectrum of the device exhibits a narrow spectrum whose height and position in wavelength changes when it is subjected to vibrations. The interrogation of the accelerometer was carried out by a spectrometer and a photodetector to measure simultaneously wavelength shift and light power variations. The device was subjected to a wide range of vibration frequencies, from 1 mHz to 30 Hz, and accelerations from 0.76 mg to 29.64 mg, and performed linearly, with a sensitivity of 2.213 nW/mg. Therefore, we believe the accelerometer reported here may represent an alternative to existing electronic and optical accelerometers, especially for low frequency and amplitude vibrations, thanks to its compactness, simplicity, cost-effectiveness, implementation easiness and high sensitivity.https://doi.org/10.1038/s41598-020-73178-x |
| spellingShingle | Josu Amorebieta Angel Ortega-Gomez Gaizka Durana Rubén Fernández Enrique Antonio-Lopez Axel Schülzgen Joseba Zubia Rodrigo Amezcua-Correa Joel Villatoro Highly sensitive multicore fiber accelerometer for low frequency vibration sensing Scientific Reports |
| title | Highly sensitive multicore fiber accelerometer for low frequency vibration sensing |
| title_full | Highly sensitive multicore fiber accelerometer for low frequency vibration sensing |
| title_fullStr | Highly sensitive multicore fiber accelerometer for low frequency vibration sensing |
| title_full_unstemmed | Highly sensitive multicore fiber accelerometer for low frequency vibration sensing |
| title_short | Highly sensitive multicore fiber accelerometer for low frequency vibration sensing |
| title_sort | highly sensitive multicore fiber accelerometer for low frequency vibration sensing |
| url | https://doi.org/10.1038/s41598-020-73178-x |
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