Soft glass optical fiber characterization with X-ray computed microtomography
Year: 2024
Authors: Crocco M.C., Mangini F., Filosa R., Solano A., Agostino RG., Barberi R.C., Couderc V., Klimczak M., Filipkowski A., Buczynski R., Wabnitz S., Formoso V., Ferraro M.
Autors Affiliation: Univ Calabria, STAR Res Infrastruct, Via Tito Flavio, I-87036 Arcavacata Di Rende, CS, Italy; Univ Calabria, Dept Phys, Via P Bucci, I-87069 Arcavacata Di Rende, Italy; Sapienza Univ Rome, Dept Informat Engn Elect & Telecommun, Via Eudossiana 18, I-00184 Rome, Italy; Univ Calabria, Dept Comp Engn Modeling Elect & Syst, Via P Bucci, I-87069 Arcavacata Di Rende, Italy; CNR Nanotec, Via P Bucci, I-87069 Arcavacata Di Rende, Italy; Univ Limoges, CNRS, UMR 7252, XLIM, 123 Ave A Thomas, F-87060 Limoges, France; Univ Warsaw, Fac Phys, Pasteura 5, PL-02093 Warsaw, Poland; Lukasiewicz Res Network Inst Microelect & Photon, Al Lotnikow 32-46, PL-02668 Warsaw, Poland; Ist Nazl Ottica, CNR INO, Via Campi Flegrei 34, I-80078 Pozzuoli, Italy.
Abstract: The high loss due to the presence of strong phonon resonances makes silica fibers unfit for applications in the mid-infrared spectral range. This has led to the development of specialty optical fibers, based on novel materials and manufacturing techniques. In some cases, the characterization of these new fibers by means of standard techniques may be challenging. Fiber manufacturers would strongly benefit from a tool, which is capable of checking the geometrical and optical properties of fibers (either after fiber drawing, or even in real-time, during the drawing process). Here, we propose and demonstrate that absorption contrast X-ray computed microtomography is a non-destructive technique, capable of characterizing both geometrical and optical properties of specialty optical fibers. We experimentally verified that the tomographic intensity profile in the fiber core has the same shape as the refractive index profile, which we determined via energy-dispersed X-ray spectroscopy. We tested step- and graded-index soft glass fibers, both purchased and made in-house. Owing to the presence of high atomic number elements, which provide higher X-ray cross-section, soft glasses were more suitable than silica for their characterization via X-ray computed microtomography.
Journal/Review: OPTICAL MATERIALS EXPRESS
Volume: 14 (1) Pages from: 70 to: 81
More Information: European Research Council (740355); the EuropeanUnion under the ItalianNationalRecovery andResilience Plan (NRRP) of NextGenerationEU, partnership on ’Telecommunications of the Future’ (PE00000001-program ’RESTART’) Ministero dell’Universita e Ricerca (PIR01-00008, R18SPB8227); Agence Nationale de la Recherche (10-LABX-0074-01, 18-CE080016-01); Fundacja na rzecz Nauki Polskiej (TEAM NET POIR.04.04.00-00-1644/18).KeyWords: TomographyDOI: 10.1364/OME.504422Citations: 1data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-24References taken from IsiWeb of Knowledge: (subscribers only)
