White Light Interferometry: Absolute and High Precision Measurement for Long-Cavity Fibre Fabry-Perot Sensors
White Light Interferometry, known for its absolute measurement capability and high precision, had its greatest scientific impact towards the end of the 20th century. In this work, it was assembled and characterized a fibre Mach-Zehnder interferometer (MZI) as an interrogator and a fibre Fabry-Perot...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2023/13/epjconf_eosam2023_09039.pdf |
| _version_ | 1797634880701464576 |
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| author | Robalinho Paulo Rodrigues A. Novais S. Ribeiro A. B. Lobo Silva S. Frazão O. |
| author_facet | Robalinho Paulo Rodrigues A. Novais S. Ribeiro A. B. Lobo Silva S. Frazão O. |
| author_sort | Robalinho Paulo |
| collection | DOAJ |
| description | White Light Interferometry, known for its absolute measurement capability and high precision, had its greatest scientific impact towards the end of the 20th century. In this work, it was assembled and characterized a fibre Mach-Zehnder interferometer (MZI) as an interrogator and a fibre Fabry-Perot interferometer (FPI) as a displacement sensor. A measurement bandwidth between 65 μm and 95 μm was obtained for FPI cavities close to 2.35 mm, at sampling frequencies between 600 Hz and 1500 Hz. Additionally, a resonant frequency at 550 Hz was achieved, allowing for an interrogation band higher than 135 μm. It was also determined a minimum absolute resolution of ± 66 nm, corresponding to a relative resolution of ± 9.4×10-4 in relation to the total band. |
| first_indexed | 2024-03-11T12:13:24Z |
| format | Article |
| id | doaj.art-1b29fb58d31f4ed291fe39388e5a388b |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-03-11T12:13:24Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-1b29fb58d31f4ed291fe39388e5a388b2023-11-07T10:20:41ZengEDP SciencesEPJ Web of Conferences2100-014X2023-01-012870903910.1051/epjconf/202328709039epjconf_eosam2023_09039White Light Interferometry: Absolute and High Precision Measurement for Long-Cavity Fibre Fabry-Perot SensorsRobalinho Paulo0Rodrigues A.1Novais S.2Ribeiro A. B. Lobo3Silva S.4Frazão O.5INESC TEC – Institute for Systems and Computer Engineering, Technology and ScienceINESC TEC – Institute for Systems and Computer Engineering, Technology and ScienceINESC TEC – Institute for Systems and Computer Engineering, Technology and ScienceFaculty of Health Sciences, University Fernando PessoaINESC TEC – Institute for Systems and Computer Engineering, Technology and ScienceINESC TEC – Institute for Systems and Computer Engineering, Technology and ScienceWhite Light Interferometry, known for its absolute measurement capability and high precision, had its greatest scientific impact towards the end of the 20th century. In this work, it was assembled and characterized a fibre Mach-Zehnder interferometer (MZI) as an interrogator and a fibre Fabry-Perot interferometer (FPI) as a displacement sensor. A measurement bandwidth between 65 μm and 95 μm was obtained for FPI cavities close to 2.35 mm, at sampling frequencies between 600 Hz and 1500 Hz. Additionally, a resonant frequency at 550 Hz was achieved, allowing for an interrogation band higher than 135 μm. It was also determined a minimum absolute resolution of ± 66 nm, corresponding to a relative resolution of ± 9.4×10-4 in relation to the total band.https://www.epj-conferences.org/articles/epjconf/pdf/2023/13/epjconf_eosam2023_09039.pdf |
| spellingShingle | Robalinho Paulo Rodrigues A. Novais S. Ribeiro A. B. Lobo Silva S. Frazão O. White Light Interferometry: Absolute and High Precision Measurement for Long-Cavity Fibre Fabry-Perot Sensors EPJ Web of Conferences |
| title | White Light Interferometry: Absolute and High Precision Measurement for Long-Cavity Fibre Fabry-Perot Sensors |
| title_full | White Light Interferometry: Absolute and High Precision Measurement for Long-Cavity Fibre Fabry-Perot Sensors |
| title_fullStr | White Light Interferometry: Absolute and High Precision Measurement for Long-Cavity Fibre Fabry-Perot Sensors |
| title_full_unstemmed | White Light Interferometry: Absolute and High Precision Measurement for Long-Cavity Fibre Fabry-Perot Sensors |
| title_short | White Light Interferometry: Absolute and High Precision Measurement for Long-Cavity Fibre Fabry-Perot Sensors |
| title_sort | white light interferometry absolute and high precision measurement for long cavity fibre fabry perot sensors |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2023/13/epjconf_eosam2023_09039.pdf |
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