Silicon-on-insulator and silicon nitride (Si3N4) are powerful integration platforms for photonic circuits, offering cost-efficient mass production at high yield. However, both material systems lack important optical properties such as strong electro-optic effects and the ability to efficiently emit light that are indispensable for realizing advanced on-chip systems. These deficiencies can be overcome by combining passive silicon or Si3N4 waveguides with functional organic cladding materials in a hybrid approach. In this talk, we briefly summarize our work on hybrid electro-optic modulators and then focus on low-cost silicon-organic hybrid (SOH) and Si3N4-organic hybrid (SiNOH) lasers. These devices can be efficiently realized by depositing light-emitting cladding materials onto pre-processed waveguide structures. SOH and SiNOH lasers can address both near-infrared and visible wavelengths and may open an attractive path towards low-cost biosensors for point-of-care diagnostics.
Nanophotonic modulators and photodetectors are key building blocks for high-speed optical interconnects in datacom and telecom networks. Besides power efficiency and high electro-optic bandwidth, ultra-compact footprint and scalable co-integration with electronic circuitry are indispensable for highly scalable communication systems. In this paper, we give an overview on our recent progress in exploring nanophotonic modulators and photodetectors that combine the specific strengths of silicon photonic and plasmonic device concepts with hybrid integration approaches. Our work comprises electro-optic modulators that exploit silicon-organic hybrid (SOH) and plasmonic-organic hybrid (POH) integration to enable unprecedented energy efficiency and transmission speed, as well as waveguide-based plasmonic internal photo-emission detectors (PIPED) with record-high sensitivities and bandwidths.
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