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- W4223487220 abstract "The growing demand for bandwidth makes photonic systems a leading candidate for future telecommunication and radar technologies. Integrated photonic systems offer ultra-wideband performance within a small footprint, which can naturally interface with fiber-optic networks for signal transmission. However, it remains challenging to realize narrowband (∼MHz) filters needed for high-performance communications systems using integrated photonics. In this paper, we demonstrate all-silicon microwave-photonic notch filters with 50× higher spectral resolution than previously realized in silicon photonics. This enhanced performance is achieved by utilizing optomechanical interactions to access long-lived phonons, greatly extending available coherence times in silicon. We use a multi-port Brillouin-based optomechanical system to demonstrate ultra-narrowband (2.7 MHz) notch filters with high rejection (57 dB) and frequency tunability over a wide spectral band (6 GHz) within a microwave-photonic link. We accomplish this with an all-silicon waveguide system, using CMOS-compatible fabrication techniques." @default.
- W4223487220 created "2022-04-15" @default.
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- W4223487220 date "2022-04-11" @default.
- W4223487220 modified "2023-10-02" @default.
- W4223487220 title "Narrowband microwave-photonic notch filters using Brillouin-based signal transduction in silicon" @default.
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- W4223487220 doi "https://doi.org/10.1038/s41467-022-29590-0" @default.
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