Pulsed Four-Wave Mixing at Telecom Wavelengths in Si₃N₄ Waveguides Locally Covered by Graphene.

ABSTRACT: Recently, the nonlinear optical response of graphene has been widely investigated, as has the integration of this 2D material onto dielectric waveguides so as to enhance the various nonlinear phenomena that underpin all-optical signal processing applications at telecom wavelengths. However, a great disparity continues to exist from these experimental reports, depending on the used conditions or the hybrid devices under test. Most importantly, hybrid graphene-based waveguides were tested under relatively low powers, and/or combined with waveguide materials that already exhibited a nonnegligible nonlinear contribution, thereby limiting the practical use of graphene for nonlinear applications. Here, we experimentally investigate the nonlinear response of Si3N4 waveguides that are locally cove

SUBMITTER: Demongodin P 

PROVIDER: S-EPMC9920485 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature