We report on inhibited-coupling hollow-core optical fibers exhibiting specific modal operation and low loss in the short-wavelength range. We show that judicious choice of the fiber cladding structure allows obtaining fibers that favor the propagation of higher-order modes and fibers which combine effective single-mode operation and low loss. Moreover, we report on recent improvements in hollow-core fibers with ultralow loss in the visible and ultraviolet range.
Hollow-core fibers with specific modal operation and low loss in the short-wavelength range / Osorio, J. H.; Amrani, F.; Delahaye, F.; Giovanardi, F.; Vincetti, L.; Debord, B.; Gerome, F.; Benabid, F.. - 2020-:(2020), pp. 1-4. (Intervento presentato al convegno 22nd International Conference on Transparent Optical Networks, ICTON 2020 tenutosi a ita nel 2020) [10.1109/ICTON51198.2020.9203168].