Footprint and Grating Analysis

The Light Guide Toolbox of the fast physical optics software VirtualLab Fusion provides a series of tools to help the optical engineer with many of the different stages involved in the design of lightguide devices for augmented and mixed reality applications. In our recent newsletters we already covered some of the features that assist, for instance, in the determination of a sufficient layout for the lightguide and its grating regions.

Today we turn to one of the most powerful systematic design tools for gratings in lightguides: the Footprint and Grating Analysis tool. Among its many functions, which are not limited to any particular layout, it can help, for example, to visualize the interactions of the beam footprints with the grating regions for the different field-of-view modes – an important study, considering the complex propagation of light inside the lightguide. But the jewel in its crown is its capacity to perform an analysis of the grating behavior that can then be used to configure a smooth variation of the grating parameters inside a single grating region, with the aim of improving the performance of the device in terms of its uniformity and efficiency.

Learn more about it with the use cases below!

Footprint Analysis of Lightguides for AR/MR Applications

The Footprint and Grating Analysis tool allows the optical designer to determine how the light will interact with the various grating regions of the lightguide.

Grating Analysis and Smoothly Modulated Grating Parameters on Lightguides

In this use case, smoothly varied grating parameters are introduced to a grating region of a lightguide for AR/MR applications, by using VirtualLab’s Footprint and Grating Analysis tool. This tool also enables the detailed investigation of the polarization-dependent diffraction efficiencies provided by the configured grating structures.

Meet us at Photonics West

Meet us at Photonics West