Lasers and laser systems play an indispensable role in modern life. They can be found in various applications such as laser material processing, metrology, monitoring, lighting, and so on. Physical-optics based modeling techniques are necessary for the successful design and analysis of a laser system. With its second-generation field tracing technique, VirtualLab constitutes a suitable tool to perform an efficient evaluation of laser systems. We demonstrate, as examples, the collimation of a laser diode with astigmatism and a laser scanning system.
Collimation of Astigmatic Diode Laser Beam by Objective Lens
High-power laser diodes often exhibit asymmetric divergence and astigmatism. The collimation of such a laser diode is investigated with both ray and field tracing.
A scanning system consisting of a dual-axis galvanometer and an aspherical focusing lens is modelled, with the rotation of the mirrors taken into account in the simulation, as is required in the practical case.
