Optimization of Grating Incoupler for Lightguides / Waveguides

Lightguide or waveguide-based systems have proven to be a good approach for many AR/VR applications. To achieve high performance for these types of applications, it is necessary that the gratings involved exhibit a high degree of uniformity with respect to different angles of incidence while simultaneously maximizing the overall efficiency across the entire field of view (FOV). The Parameter Variation Analyzer in VirtualLab Fusion allows the user to analyze system performance for a given field of view, automatically calculating the corresponding merit functions. In addition, the integrated Parametric Optimization facilitates the determination of the optimal grating structure by adjusting parameters such as fill factor, modulation depth and tilt angle.