ORCID Profile
0000-0001-9129-3539
Current Organisation
University of Aveiro
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Publisher: The Optical Society
Date: 16-12-2019
DOI: 10.1364/OE.27.038039
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 04-2021
Publisher: SPIE
Date: 04-2020
DOI: 10.1117/12.2555432
Publisher: Elsevier BV
Date: 09-2021
Publisher: IEEE
Date: 10-11-2019
Publisher: The Optical Society
Date: 12-10-2018
DOI: 10.1364/OL.43.005106
Publisher: Elsevier BV
Date: 11-2018
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 05-2023
Publisher: MDPI AG
Date: 18-04-2017
DOI: 10.3390/S17040891
Publisher: The Optical Society
Date: 18-01-2018
DOI: 10.1364/OE.26.002013
Publisher: IEEE
Date: 08-2017
Publisher: MDPI AG
Date: 20-12-2022
DOI: 10.3390/S23010023
Abstract: The use of simpler and less bulky equipment, with a reliable performance and at relative low cost is increasingly important when assembling sensing configurations for a wide variety of applications. Based on this concept, this paper proposes a simple, efficient and relative low-cost fiber Bragg grating (FBG) interrogation solution using ultra-short FBGs (USFBGs) as edge filters. USFBGs with different lengths and reflection bandwidths were produced in silica optical fiber and in poly(methyl methacrylate) (PMMA) microstructured polymer optical fiber (mPOF), and by adjusting specific inscription parameters and the diffraction pattern, these gratings can present self-apodization and unique spectral characteristics suitable for filtering operations. In addition to being a cost-effective edge filter solution, USFBGs and standard uniform FBGs in silica fiber have similar thermal sensitivities, which results in a straightforward operation without complex equipment or calculations. This FBG interrogation configuration is also quite promising for dynamic measurements, and due to its multiplexing capabilities multiple USFBGs can be inscribed in the same optical fiber, allowing to incorporate several filters with identical or different spectral characteristics at specific wavelength regions in the same fiber, thus showing great potential to create and develop new sensing configurations.
Publisher: OSA
Date: 2018
Publisher: The Optical Society
Date: 20-12-2018
DOI: 10.1364/OE.26.034655
Publisher: The Optical Society
Date: 28-06-2018
DOI: 10.1364/OE.26.018096
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 12-2017
Publisher: Springer Science and Business Media LLC
Date: 11-01-2021
Location: Portugal
No related grants have been discovered for Paulo Antunes.