The goal of this example is to design a TE silicon on insulator (SOI) coupler with a Bragg grating fed from the top by a single-mode fiber. Understand the simulation workflow and key results It is also shown how to extract these parameters for compact model generation using the CML Compiler. The built-in particle swarm optimization tool is used to maximize the coupling efficiency, and a compact model in INTERCONNECT is created using the component S-parameters. Design a grating coupler connecting a single-mode fiber on the surface of a photonic chip to an integrated waveguide.