Regenerated Fiber Bragg Gratings in Multicore Fiber for Multi-parameter Sensing

© 2020 IEEE. Personal use of this material is permitted. Permissíon from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertisíng or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.[EN] Multiple regenerated fiber Bragg gratings were inscribed in all the cores of a seven-core fiber in order to develop a multi-parameter sensor designed to operate at high temperatures. We experimentally showed the possibility of measuring strains of up to 1200 mu epsilon, curvatures from 0 degrees to 360 degrees and temperatures up to 1000 degrees C, with a maximum curvature magnitude of at least 4.6 m(-1) and a maximum sensibility of 96 pm/m(-1).This work was supported in part by the Spanish Ministry of Economy and Competitiveness under the DIMENSION TEC2017 88029-R Project and in part by the Generalitat Valenciana by the PROMETEO 2017/103 Research Excellency Award and IDI/FEDER/2018 GVA Infraestructura. The work of J. Madrigal was supported by a Universitat Politecnica de Valencia scholarship PAID-01-18. The work of D. Barrera was supported by a Spanish MICINN Fellowship IJCI-2017-32476.Madrigal-Madrigal, J.; Barrera, D.; Sales Maicas, S. (2020). Regenerated Fiber Bragg Gratings in Multicore Fiber for Multi-parameter Sensing. IEEE Journal of Selected Topics in Quantum Electronics. 26(4):1-6. https://doi.org/10.1109/JSTQE.2019.29589981626