Investigation of Ghost Image Effects in Collimation System

In any optical system there are always stray light which causes ghost images. Stray light may come from different effect, like undesired reflections and scattering. A collimation lens system for high-NA laser diode is taken as an example. By using the non-sequential tracing technique in VirtualLab Fusion, the reflections between uncoated surfaces are studied, and it is shown that the multiple reflections may cause interference fringes in the collimated beam.

Contact & Trial

LightTrans GmbH

Phone +49.3641.53129-50

info (at)

VirtualLab Fusion

Get free trial version

Get an offer