1.
Opt Lett
; 47(1): 26-29, 2022 Jan 01.
Article
in English
| MEDLINE
| ID: mdl-34951874
ABSTRACT
We report multicore fibers (MCFs) with 10 and 16 linearly distributed cores with single-mode operation in the visible spectrum. The average propagation loss of the cores is 0.06â dB/m at λ = 445â nm and < 0.03â dB/m at wavelengths longer than 488â nm. The low inter-core crosstalk and nearly identical performance of the cores make these MCFs suitable for spatial division multiplexing in the visible spectrum. As a proof-of-concept application, one of the MCFs was coupled to an implantable neural probe to spatially address light-emitting gratings on the probe.