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.
Ultra-wideband multi-level optical modulation in a Ge2Sb2Te5-based waveguide with low power consumption and small footprint
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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.