Customized Module: Grating Period Calculation According to the Guiding Condition of Lightguides

A module in VirtualLab Fusion is generated to calculate the range of the period of a coupling grating, so to fulfil the guiding condition of lightguides. To aid the design waveguide-based display devices, a certain field of view (FOV) is given as the desired input parameter. In the module, both the total internal reflection limit and the propagating light limit of the lightguide are used to compute the possible grating period range.