Performance analysis of transmissive modified cladding optical fibre sensors
Abstract Optical fibre sensors with modified cladding have been a topic of great interest for decades. Thanks to the new techniques of fabricating nanostructured films, this interest has been renewed. Although there have been many increases in published experimental research, no comprehensive theore...
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| Format: | Article |
| Language: | English |
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Wiley
2022-04-01
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| Series: | IET Optoelectronics |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/ote2.12057 |
| _version_ | 1818065365582741504 |
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| author | Hamed Dehdashti Jahromi |
| author_facet | Hamed Dehdashti Jahromi |
| author_sort | Hamed Dehdashti Jahromi |
| collection | DOAJ |
| description | Abstract Optical fibre sensors with modified cladding have been a topic of great interest for decades. Thanks to the new techniques of fabricating nanostructured films, this interest has been renewed. Although there have been many increases in published experimental research, no comprehensive theoretical formulation of the structure is reported in the literature. In this study, a general theory for transmissive modified cladding optical fibre sensors is presented. The model is formulated based on the electromagnetic fields and optical power in the core and cladding of a step‐index fibre. The model considers various parameters, especially the radius of the optical fibre core, modified cladding refractive index, and light wavelength. The sensitivity, response, and optical transmission of the sensor are analysed as a function of the parameters. The analyses show that optical transmission reduces dramatically when the modified cladding refractive index approaches the refractive index of the core of the fibre and results in higher sensor response and sensitivity. Increasing the core radius of the fibre will result in lower sensor response with higher sensitivity. Both parameters will increase for a light with a larger wavelength. The results are in good agreement with experimental evidence. |
| first_indexed | 2024-12-10T14:50:44Z |
| format | Article |
| id | doaj.art-9fd8ce52db644e439488059260760489 |
| institution | Directory Open Access Journal |
| issn | 1751-8768 1751-8776 |
| language | English |
| last_indexed | 2024-12-10T14:50:44Z |
| publishDate | 2022-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Optoelectronics |
| spelling | doaj.art-9fd8ce52db644e4394880592607604892022-12-22T01:44:27ZengWileyIET Optoelectronics1751-87681751-87762022-04-01162637110.1049/ote2.12057Performance analysis of transmissive modified cladding optical fibre sensorsHamed Dehdashti Jahromi0Department of Electrical Engineering Jahrom University Jahrom IranAbstract Optical fibre sensors with modified cladding have been a topic of great interest for decades. Thanks to the new techniques of fabricating nanostructured films, this interest has been renewed. Although there have been many increases in published experimental research, no comprehensive theoretical formulation of the structure is reported in the literature. In this study, a general theory for transmissive modified cladding optical fibre sensors is presented. The model is formulated based on the electromagnetic fields and optical power in the core and cladding of a step‐index fibre. The model considers various parameters, especially the radius of the optical fibre core, modified cladding refractive index, and light wavelength. The sensitivity, response, and optical transmission of the sensor are analysed as a function of the parameters. The analyses show that optical transmission reduces dramatically when the modified cladding refractive index approaches the refractive index of the core of the fibre and results in higher sensor response and sensitivity. Increasing the core radius of the fibre will result in lower sensor response with higher sensitivity. Both parameters will increase for a light with a larger wavelength. The results are in good agreement with experimental evidence.https://doi.org/10.1049/ote2.12057refractive indexfibre optic sensorsoptical fibre cladding |
| spellingShingle | Hamed Dehdashti Jahromi Performance analysis of transmissive modified cladding optical fibre sensors IET Optoelectronics refractive index fibre optic sensors optical fibre cladding |
| title | Performance analysis of transmissive modified cladding optical fibre sensors |
| title_full | Performance analysis of transmissive modified cladding optical fibre sensors |
| title_fullStr | Performance analysis of transmissive modified cladding optical fibre sensors |
| title_full_unstemmed | Performance analysis of transmissive modified cladding optical fibre sensors |
| title_short | Performance analysis of transmissive modified cladding optical fibre sensors |
| title_sort | performance analysis of transmissive modified cladding optical fibre sensors |
| topic | refractive index fibre optic sensors optical fibre cladding |
| url | https://doi.org/10.1049/ote2.12057 |
| work_keys_str_mv | AT hameddehdashtijahromi performanceanalysisoftransmissivemodifiedcladdingopticalfibresensors |