公开(公告)号：US20220196936A1

公开(公告)日：2022-06-23

申请号：US17132967

申请日：2020-12-23

Applicant: Intel Corporation

Inventor： Kaveh HOSSEINI ,  Xiaoqian LI ,  Conor O'KEEFFE ,  Jing FANG ,  Kevin P. MA ,  Shamsul ABEDIN

IPC: G02B6/42 ,  H01L21/66

Abstract: Embodiments described herein may be related to apparatuses, processes, and techniques related to a bidirectional optical grating coupler that may be used for testing. A photonic apparatus includes a first layer with electro-optical circuitry that is optically coupled with a bidirectional optical grating coupler. A second layer is physically coupled with a first side of the first layer and includes a first light path to optically coupled with the bidirectional optical grating coupler. A third layer is physically coupled with a second side of the first layer opposite the first side of the first layer, and includes a second light path that optically couples with the bidirectional grating coupler. Operational testing of the electro-optical circuitry is based in part on light received or transmitted through the second light path. Other embodiments may be described and/or claimed.