Optical vortex beam splitter using topological edge state waveguide

Authors :: Koichi Saito
Hibiki Kagami
Nobuhiko Nishiyama
Sho Okada
Tomohiro Amemiya
Xiao Hu
Makoto Tanaka
Source :: Conference on Lasers and Electro-Optics.
Publication Year :: 2020
Publisher :: Optica Publishing Group, 2020.
Abstract: We propose an Si-based optical vortex beam splitter consisting of topological edge state waveguides with C6 symmetry. The device can continuously change the branching ratio of the propagate light in the range from 16% to 84%.

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