Twin-core fiber sensor integrated in laser cavityShow others and affiliations
2022 (English)In: Scientific Reports, E-ISSN 2045-2322, Vol. 12, no 1, article id 11797
Article in journal (Refereed) Published
Abstract [en]
In this work, we report on a twin-core fiber sensor system that provides improved spectral efficiency, allows for multiplexing and gives low level of crosstalk. Pieces of the referred strongly coupled multicore fiber are used as sensors in a laser cavity incorporating a pulsed semiconductor optical amplifier (SOA). Each sensor has its unique cavity length and can be addressed individually by electrically matching the periodic gating of the SOA to the sensor’s cavity roundtrip time. The interrogator acts as a laser and provides a narrow spectrum with high signal-to-noise ratio. Furthermore, it allows distinguishing the response of individual sensors even in the case of overlapping spectra. Potentially, the number of interrogated sensors can be increased significantly, which is an appealing feature for multipoint sensing. © 2022, The Author(s).
Place, publisher, year, edition, pages
Nature Research , 2022. Vol. 12, no 1, article id 11797
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:ri:diva-59821DOI: 10.1038/s41598-022-16103-8Scopus ID: 2-s2.0-85133894021OAI: oai:DiVA.org:ri-59821DiVA, id: diva2:1685700
Note
Funding details: 2020-00187; Funding details: Office of Naval Research Global, ONRG, N62909-20-1-2033; Funding details: Ministerio de Economía y Competitividad, MINECO, PGC2018-101997-B-I00, TEC2015-638263-C03-1-R; Funding details: Euskal Herriko Unibertsitatea, EHU; Funding details: Vetenskapsrådet, VR; Funding details: Ministerio de Ciencia e Innovación, MICINN, IT1452-22, KK 2021/00082, KK 2021/00092, PID2021-122505OB-C31, TED2021-129959B-C21; Funding details: European Regional Development Fund, ERDF; Funding text 1: This work was supported in part by the European Regional Development Fund, in part by the Ministerio de Economía y Competitividad under projects TEC2015-638263-C03-1-R and PGC2018-101997-B-I00, in part by Ministerio de Ciencia e Innovación: under projects PID2021-122505OB-C31 and TED2021-129959B-C21, in part by the Gobierno Vasco/Eusko Jaurlaritza under projects IT1452-22 and ELKARTEK (KK 2021/00082 and KK 2021/00092), in part by the Swedish Science Council, Office of Naval Research Global (Award N62909-20-1-2033) and in part by Vinnova Innovair: Forskningsprojekt inom flygteknik (D.N. 2020-00187). The work of Josu Amorebieta is funded by a PhD fellowship from the University of the Basque Country UPV/EHU.
2022-08-042022-08-042023-10-31Bibliographically approved