Tolerancing with Parameter Variations of Different Random Distributions

The investigation of the effect of manufacturing deviations is crucial for the design of any optical system and component. In VirtualLab Fusion, randomly varied Parameter Runs can be applied to analyze this impact in detail. Depending on the kind of manufacturing process, the resulting deviations may exhibit different kinds of random distributions. While the default Random mode of the Parameter Run assumes a uniform distribution, in this use case we want to show how to use a programmable Parameter Run to apply different random distributions to each of the parameters involved in the tolerancing. For illustration, a sawtooth grating was chosen, for which the minimal efficiency of the minus first transmission order is investigated.