Narrowband microwave-photonic notch filters using Brillouin-based signal transduction in silicon.

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-ba

SUBMITTER: Gertler S 

PROVIDER: S-EPMC9001665 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature