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Updated: Feb 11, 2026

Blood Flow Imaging with Ultrafast Doppler
Published on: October 14, 2020
Time-domain characteristics of ultrafast transverse mode switching based on Si nanowires
Abstract:
We investigate the potential of an ultrafast transverse mode switch based on silicon on insulator (SOI) platform for the switching applications in the spatial division multiplexing (SDM) systems. The impact of waveguide geometry, operation wavelength, pulse width of the pump and probe waves, as well as the temporal delay between the pulses are discussed with a special focus on the temporal switching windows of the switch. The optimized switching performances are further applied to a switching node in a hybrid optical time division-multiplexing (OTDM) and SDM system. The switching energy of the Si-based switch is shown to be potentially smaller than that of the Si3N4 based integration platform.
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