Avoiding undesired phase-matched couplings enables high-efficiency multi-mode grating couplers, with scaling laws predicting 5-10 modes in 2D and hundreds in 3D designs.
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An O(M) algorithm evaluates azimuthal Fourier modes of the 3D Helmholtz Green's function and derivatives with cost independent of wavenumber and separation.
Inverse design produces foundry-compliant multilayer grating couplers for efficient multimode free-space to on-chip coupling that stay robust to fabrication imperfections with unchanged scaling laws.
citing papers explorer
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Many-mode grating couplers by avoiding undesired couplings
Avoiding undesired phase-matched couplings enables high-efficiency multi-mode grating couplers, with scaling laws predicting 5-10 modes in 2D and hundreds in 3D designs.
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Fast Evaluation of the Azimuthal Fourier Modes of the 3D Helmholtz Green's Function and Their Derivatives
An O(M) algorithm evaluates azimuthal Fourier modes of the 3D Helmholtz Green's function and derivatives with cost independent of wavenumber and separation.
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Multimode grating couplers via foundry-compliant inverse design
Inverse design produces foundry-compliant multilayer grating couplers for efficient multimode free-space to on-chip coupling that stay robust to fabrication imperfections with unchanged scaling laws.