These techniques can simulate a variety of passive devices, such as waveguides, Y-branches, couplers, and splitters, which are essential building blocks in photonic systems. For several years, the Chair of Electronic Devices has been working in the innovative field of quantum devices and process integration for quantum-electronic applications. The focus lies on using the semiconductor material silicon carbide (SiC) for quantum computing and integrating SiC qubits into. 3D Interconnect Designer provides a flexible modeling and optimization environment for any advanced interconnect structure, including chiplets, stacked die, packages, and PCBs. With extra memory and storage, these enhanced NPBs run Keysight's AI security and performance monitoring software and AI. Abstract—This paper presents a novel approach for accurate and efficient time-domain simulations of general linear and passive photonic systems. With advanced simulation capabilities, they enable. To address this challenge, we propose a data-driven Eigenmode Propagation Method (DEPM) based on the unitary evolution of optical waveguides, along with a compact model derived from intrinsic waveguide Hamiltonians. The relevant parameters are extracted via complex coupled-mode theory.