Observation of Visible Upconversion Luminescence of Soft Glass Multimode Fibers
Year: 2024
Authors: Ferraro M., Mangini F., Filosa R., Couderc V., Sun YF., Parra-Rivas P., Gemechu WA., Stepniewski G., Filipkowski A., Buczynski R., Wabnitz S.
Autors Affiliation: Univ Calabria, Dept Phys, Via P Bucci, I-87069 Arcavacata Di Rende, Italy; CNR Nanotec, 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 Limoges, XLIM, UMR CNRS 7252, 123 Ave A Thomas, F-87060 Limoges, France; Warsaw Univ, 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: This research investigates the visible upconversion luminescence which is induced by multiphoton absorption of soft glass fiber defects. The study of this phenomenon has thus far been restricted to standard silica fibers. We observed the emission of green and cyan light as a consequence of fiber material ionization. We investigate both the commercial ZBLAN step index and in-house-made tellurite nanostructured graded-index fibers. For the latter, the analysis of the luminescence signal permits us to determine the core and cladding refractive index difference. Upconversion luminescence is a powerful tool for characterizing soft glass fibers and a promising platform for innovative photonic technologies and mid-IR applications.
Journal/Review: FIBERS
Volume: 12 (2) Pages from: 15-1 to: 15-9
More Information: No Statement AvailableKeyWords: upconversionluminescence; soft glass fibers; multiphoton absorption; multiphoton ionization; plasma filamentsDOI: 10.3390/fib12020015Connecting to view paper tab on IsiWeb: Click here