Paper
14 October 2005 Measurement of the four-dimensional Wigner distribution of paraxial light sources
B. Eppich, G. Mann, H. Weber
Author Affiliations +
Abstract
The complete knowledge and description of light sources is a fundamental base of optical design. Partially coherent, paraxial light sources of homogeneous polarisation state are represented by the four-dimensional Wigner distribution function, which contains all information on amplitude, phase relations and spatial coherence. Hence, knowledge of the Wigner distribution enables the prediction of power density distributions after propagation through a wide range of optical systems by numerical simulation. A simple optical setup consisting of a spherical lens, a cylindrical lens, and a CCD camera can be used to experimentally retrieve the Wigner distribution function of a spatially confined light source by a tomographic reconstruction scheme. This paper briefly introduces the Wigner distribution and outline the reconstruction scheme. Measurements on partially coherent laser beams are presented including examples of successful predictions of power density distributions behind some optical systems.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
B. Eppich, G. Mann, and H. Weber "Measurement of the four-dimensional Wigner distribution of paraxial light sources", Proc. SPIE 5962, Optical Design and Engineering II, 59622D (14 October 2005); https://doi.org/10.1117/12.624812
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Cited by 7 scholarly publications.
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KEYWORDS
Wigner distribution functions

Light sources

Spherical lenses

Fourier transforms

Optical design

Spatial coherence

CCD cameras

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