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Silica nano-ridges connections based on a fluidic approach for hybrid integrated photonics

We report a practical and novel concept based on reproducible fluidic mechanisms coupled with silica nano-particles for the development of nano-optical-connections directly on organic integrated photonic chips. Silica nano-rib waveguides have been shaped with various widths ranging between 50 nm and 300 nm and about a hundred μm in length respectively. An effective nano-photonic coupling mechanism has been demonstrated and a sub-wavelength propagation regime obtained between two organic rib tapers and waveguides with a perpendicular and a parallel configuration respectively. The specific silica nano-rib-waveguides structures show off optical losses propagation ranging around [37- 68] dB/mm at visible and infra-red (IR) wavelengths. Such flexible devices offer a versatile fabrication control by changing respectively nano-particles and surfactant concentrations. Thus, they present great potential regarding future applications for shaping nano-connections and high-density network integrations between original optical segmented circuits such as plots, lines or any pre-formed photonics structures.