Propagation of partially coherent light through a light pipe | Zendy

Stijn Roelandt | Zendy; Jani Tervo | Zendy; Youri Meuret | Zendy; Guy Verschaffelt | Zendy; Hugo Thienpont | Zendy

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Propagation of partially coherent light through a light pipe

Author(s) -

Stijn Roelandt,

Jani Tervo,

Youri Meuret,

Guy Verschaffelt,

Hugo Thienpont

Publication year - 2013

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.017007

Subject(s) - optics , speckle pattern , wavefront , projector , light beam , laser , coherence (philosophical gambling strategy) , diffuser (optics) , structured light , rotation (mathematics) , projection (relational algebra) , physics , laser light , light intensity , light source , computer science , algorithm , quantum mechanics , artificial intelligence

In laser projection applications, laser light modules are often combined with rotating diffusers in order to reduce the appearance of speckle on the projection screen. The rotation of a diffuser in a laser beam generates a beam of partially coherent light. Propagation of this light through the different optical components constituting the laser projector is thus essential when investigating the appearance of speckle. In this paper, a computationally efficient simulation model is presented to propagate partially coherent light through a homogenizing rectangular light pipe. The light pipe alters the coherence properties of the light and different consequences are discussed. The outcomes of the simulation model are experimentally verified using a reversing wavefront Michelson interferometer.

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