A subwavelength grating silicon waveguide with evanescently coupled GST grating segments achieves 28.8 dB extinction ratio switching and over 4 nm blueshift via partial GST crystallization, as shown in 3D FDTD simulations.
A fully reconfigurable waveguide Bragg grating for programmable photonic signal processing
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Subwavelength grating waveguide filter based on cladding modulation with phase-change material grating
A subwavelength grating silicon waveguide with evanescently coupled GST grating segments achieves 28.8 dB extinction ratio switching and over 4 nm blueshift via partial GST crystallization, as shown in 3D FDTD simulations.