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Data · collection · 2018

Very sharp adiabatic bends based on inverse design

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Very sharp 90°micro-bends for adiabatic optical wave propagation in multimode waveguides are demonstrated by inverse design method and the devices are fabricated on silicon-on-insulator platform.

Description

The compact bending structures are based on digital waveguide metastructures with footprints as small as 2.6×2.6 μm². For waveguides width of 2μm and bending radius of only 1 μm, the TE00 mode is able to turn around the sharp corner with 1dB loss and >20 dB suppression ratio to higher order modes.

The transmission spectra of the devices are measured with ~1 dB loss over 40 nm bandwidth which are consistent with the numerical simulations.

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Communications engineering 72%
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DataCite10.6084/m9.figshare.c.405199715 d agoJSON v1
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