Patent ID: 9715064
Date: 2017-07-25
CPC Classifications: G02B

Claim:
1. A multi-chip module comprising: a first component comprising a first waveguide and a first grating coupler coupled to the first waveguide; a second component comprising a second waveguide and a second grating coupler coupled to the second waveguide; interconnects attaching the first component to the second component such that the first grating coupler is approximately vertically aligned with the second grating coupler; and fill material between the first component and the second component and positioned laterally adjacent to the interconnects, the fill material having at least one of an optically transparent property and an opening that extends from the first component to the second component and that is vertically aligned with the first grating coupler and the second grating coupler, the first grating coupler and the second grating coupler allowing transmission of light signals between the first waveguide and the second waveguide.