Broadband Terahertz Photonic Integrated Circuit with Integrated Active Photonic Devices
نویسندگان
چکیده
Present-day photonic terahertz (100 GHz–10 THz) systems offer dynamic ranges beyond 100 dB and frequency coverage 4 THz. They yet predominantly employ free-space Terahertz propagation, lacking integration depth miniaturisation capabilities without sacrificing their extreme coverage. In this work, we present a high resistivity silicon-on-insulator-based multimodal waveguide topology including active components (e.g., THz receivers) as well passive (couplers/splitters, bends, resonators) investigated over range of 0.5–1.6 The waveguides have single mode bandwidth between 0.5–0.75 THz; however, above 1 THz, these can be operated in the overmoded regime offering lower loss than commonly implemented hollow metal waveguides, fundamental mode. Supported by quartz polyethylene substrates, platform for integrated circuits (Tera-PICs) is mechanically stable easily integrable. Additionally, demonstrate several key Tera-PICs: low bends with radii ∼2 mm, Vivaldi antenna-based efficient near-field coupling to devices, 3-dB splitter filter based on whispering gallery resonator.
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ژورنال
عنوان ژورنال: Photonics
سال: 2021
ISSN: ['2304-6732']
DOI: https://doi.org/10.3390/photonics8110492