Modelling And Design Approaches

摘要: In this chapter, we present an overview of the simulation and design tools useful for silicon photonics component circuit design. The methodology photonic systems is illustrated in Figure 2.1. order material presented book follows illustration from top down. passive components considered Part II, Chapters 3–5, while active III, 6–7. Model synthesis described throughout these sections, more detail Chapter 9, which describe optical modelling techniques. Circuit initially focused on predicting system behaviour presence external stimulus, namely electrical signals. Once a designed, designer uses schematic to lay out physical mask layout using variety aids, as 10. This followed by verification, including manufacturing rule checking (DRC, DFM), versus (LVS), test considerations, lithography simulation, parasitic extraction. results verification are fed back into simulations predict response effects due implementation (e.g. effects, fabrication non-uniformity, temperature, waveguide lengths, placement). step, takes account not only stimulus but also process (Chapter 11) environmental variations. was Reference [1]. Optical mode solver An eigenmode (or solver) solves modes cross-section arbitrary geometry 3D geometry) at particular frequency. A transverse field distribution that propagates along without changing shape; solution time-invariant. example profile shown 2.2a. Eigenmode solvers determine time-harmonic solutions Maxwell's equations frequency domain. Since they provide single frequency, numerous required obtain wavelength sweeps needed study dispersion.