Dual-Parameter Sensing With a Single Supermode Interferometer
Optical fiber interferometers have intrinsic sensitivity to temperature, thus, in sensing applications; they need a reference temperature sensor or a mechanism to control the temperature. Here, we demonstrate that a single multicore fiber interferometer can monitor two parameters simultaneously; mor...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-04-01
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| Series: | Frontiers in Sensors |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fsens.2022.820612/full |
| _version_ | 1811279374898429952 |
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| author | Jose A. Flores-Bravo Joel Villatoro Joel Villatoro |
| author_facet | Jose A. Flores-Bravo Joel Villatoro Joel Villatoro |
| author_sort | Jose A. Flores-Bravo |
| collection | DOAJ |
| description | Optical fiber interferometers have intrinsic sensitivity to temperature, thus, in sensing applications; they need a reference temperature sensor or a mechanism to control the temperature. Here, we demonstrate that a single multicore fiber interferometer can monitor two parameters simultaneously; more particularly, refractive index, and temperature. The interferometer is easy to manufacture; a short segment of an optical fiber with seven coupled cores is fusion spliced at the distal end of a conventional single mode optical fiber. In the coupled-core fiber, two supermodes beat; this makes the reflection spectrum of the device to exhibit a well-defined series of maxima and minima. The refractive index of a sample in contact with multicore fiber alters the amplitude of the interference pattern and temperature induces a shift to such a pattern. The changes of the interference pattern are easy to monitor and decode with a low-resolution spectrometer. As an application of our dual-parameter sensor, the thermo-optic coefficient of a sample was measured. |
| first_indexed | 2024-04-13T00:53:27Z |
| format | Article |
| id | doaj.art-bc8fd675209541418f0b05d9c66b1474 |
| institution | Directory Open Access Journal |
| issn | 2673-5067 |
| language | English |
| last_indexed | 2024-04-13T00:53:27Z |
| publishDate | 2022-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Sensors |
| spelling | doaj.art-bc8fd675209541418f0b05d9c66b14742022-12-22T03:09:49ZengFrontiers Media S.A.Frontiers in Sensors2673-50672022-04-01310.3389/fsens.2022.820612820612Dual-Parameter Sensing With a Single Supermode InterferometerJose A. Flores-Bravo0Joel Villatoro1Joel Villatoro2Department of Communications Engineering, University of the Basque Country UPV/EHU, Bilbao, SpainDepartment of Communications Engineering, University of the Basque Country UPV/EHU, Bilbao, SpainIKERBASQUE, Basque Foundation for Science, Bilbao, SpainOptical fiber interferometers have intrinsic sensitivity to temperature, thus, in sensing applications; they need a reference temperature sensor or a mechanism to control the temperature. Here, we demonstrate that a single multicore fiber interferometer can monitor two parameters simultaneously; more particularly, refractive index, and temperature. The interferometer is easy to manufacture; a short segment of an optical fiber with seven coupled cores is fusion spliced at the distal end of a conventional single mode optical fiber. In the coupled-core fiber, two supermodes beat; this makes the reflection spectrum of the device to exhibit a well-defined series of maxima and minima. The refractive index of a sample in contact with multicore fiber alters the amplitude of the interference pattern and temperature induces a shift to such a pattern. The changes of the interference pattern are easy to monitor and decode with a low-resolution spectrometer. As an application of our dual-parameter sensor, the thermo-optic coefficient of a sample was measured.https://www.frontiersin.org/articles/10.3389/fsens.2022.820612/fulloptical fiber sensorsmulticore fiberssupermode interferometersmulti-parameter sensorsmode interferometers |
| spellingShingle | Jose A. Flores-Bravo Joel Villatoro Joel Villatoro Dual-Parameter Sensing With a Single Supermode Interferometer Frontiers in Sensors optical fiber sensors multicore fibers supermode interferometers multi-parameter sensors mode interferometers |
| title | Dual-Parameter Sensing With a Single Supermode Interferometer |
| title_full | Dual-Parameter Sensing With a Single Supermode Interferometer |
| title_fullStr | Dual-Parameter Sensing With a Single Supermode Interferometer |
| title_full_unstemmed | Dual-Parameter Sensing With a Single Supermode Interferometer |
| title_short | Dual-Parameter Sensing With a Single Supermode Interferometer |
| title_sort | dual parameter sensing with a single supermode interferometer |
| topic | optical fiber sensors multicore fibers supermode interferometers multi-parameter sensors mode interferometers |
| url | https://www.frontiersin.org/articles/10.3389/fsens.2022.820612/full |
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