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Investigation of Diffraction in Inte

Investigation of Focus Shift due to

Including Lens Systems in the Optica

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Import of Precalculated Diffraction

Investigation of Ghost Image Effects in Collimation System
Time: 2025-05-07 17:04Source: infocrops.comWriter: infocrops
One of the principal roles of simulation technology is to provide a platform on which to study the performance of a system before that system is manufactured, in order to preempt as many potential pitfalls as possible. One of the most common phenomena that can detrimentally affect the performance of a system is stray light, which may have multiple sources, spurious internal reflections in the system among them. In this use case we analyze the presence of such reflections in a collimation lens system for a high-NA laser diode, we model the effect the resulting ghost images have on the detected field (a concentric ring pattern caused by the interference of the main collimated beam and a secondary divergent one produced by the stray light), and identify the need for an antireflection coating on key surfaces of the lens system in question.
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