A new technical paper, “Multimode grating couplers via foundry-compliant inverse design,” was published by researchers at Yale University. Abstract “We apply a systematic inverse design approach to discover foundry-compliant, multilayer grating couplers that can efficiently couple a number of independent waves from free space to on-chip propagating modes. For visible- and near-infrared couplers, we find that minimum feature sizes are by far the …
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