X-ray computed ?-tomography for the characterization of optical fibers

Year: 2022

Authors: Ferraro M., Crocco MC., Mangini F., Jonard M., Sangiovanni R., Zitelli M., Filosa R., Beltrano JJ., De Luca A., Barber RC., Agostino RG., Couderc V., Wabnitz S., Formoso V.

Autors Affiliation: Univ Calabria, STAR Res Infrastruct, Via Tito Flavio, I-87036 Arcavacata Di Rende, CS, Italy; Sapienza Univ Rome, Dept Informat Engn Elect & Telecommun, Via Eudossiana 18, I-00184 Rome, Italy; Univ Calabria, Phys Dept, Via Pietro Bucci, I-87036 Arcavacata Di Rende, CS, Italy; Univ Limoges, XLIM, CNRS, UMR 7252, 123 Ave A Thomas, F-87060 Limoges, France; Ist Nazl Ottica, CNR, INO, Via Campi Flegrei 34, I-80078 Pozzuoli, NA, Italy.

Abstract: In spite of their ubiquitous applications, the characterization of glass fibers by means of all-optical techniques is still facing some limitations. Recently, X-ray absorption has been proposed as a method for visualizing the inner structure of both standard and microstructure optical fibers. Here, we exploit X-ray absorption as nondestructive technique for the characterization of glass optical fibers. Starting from absorption contrast X-ray computed micro-tomography measurements, we obtain information about the spatial profile of the fiber refractive index at optical frequencies. We confirm the validity of our approach by comparing its results with complementary characterization techniques, based on electron spectroscopy or multiphoton microscopy.(c) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

Journal/Review: OPTICAL MATERIALS EXPRESS

Volume: 12 (11)      Pages from: 4210  to: 4222

More Information: Ministero dell’Istruzione, dell’Universita e della Ricerca (PIR01-00008, R18SPB8227); European ResearchCouncil (740355); Agence Nationale de la Recherche (ANR-10-LABX-0074-01, ANR-18-CE080016-01); SapienzaUniversita di Roma (AR22117A7B01A2EB, AR22117A8AFEF609, RG12117A84DA7437).
KeyWords: Refractive-index; Profiles; Dynamics; Image
DOI: 10.1364/OME.458951

Citations: 7
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