公开(公告)号：US20250148181A1

公开(公告)日：2025-05-08

申请号：US18503212

申请日：2023-11-07

Applicant: GlobalFoundries U.S. Inc.

Inventor： Bradley A. Orner ,  Romain H.A. Feuillette ,  Vivienne A.B. Miller ,  Petar Ivanov Todorov ,  Stephen T. Burgess

IPC: G06F30/3308 ,  G02B27/00

Abstract: Disclosed are a photonic integrated circuit (PIC) design system and method including optical signal propagation simulation with coupling awareness to account for transition loss due to a difference between at least one specific physical parameter (e.g., curvature radius, material composition, etc.) in optically coupled photonic devices. Coupling awareness can be achieved by including, within a bus of a netlist between the photonic devices, at least one pair of physical data pins: one associated with a specific physical parameter in the light emitting photonic device and the other associated with the specific physical parameter in the light receiving photonic device. Alternatively, coupling awareness can be achieved by running a utility to identify a parameter mismatch between the light emitting and receiving photonic devices, developing a custom coupling cell to account for the mismatch, and inserting the custom coupling cell into a design layout for the PIC.