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Proceedings Paper

Determination of angular momentum content in partially coherent beams through cross correlation measurements
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Paper Abstract

A means to measure orbital angular momentum in a partially coherent beam is demonstrated by using a wavefront folding interferometer. This interferometer allows us to study the cross correlation function of a partially coherent vortex beam. It is shown that the cross correlation function possesses ring dislocations which are related to the topological charge of the partially coherent vortex, exhibiting a one to one correspondence between the number of rings and the value of the topological charge, thus providing a direct measure of the orbital angular momentum.

Paper Details

Date Published: 28 September 2013
PDF: 8 pages
Proc. SPIE 8843, Laser Beam Shaping XIV, 884302 (28 September 2013); doi: 10.1117/12.2024683
Show Author Affiliations
Adad Yepiz Escalante, Tecnológico de Monterrey (Mexico)
Benjamin Perez-Garcia, Tecnológico de Monterrey (Mexico)
Raul I. Hernandez-Aranda, Tecnológico de Monterrey (Mexico)
Grover A. Swartzlander Jr., Rochester Institute of Technology (United States)

Published in SPIE Proceedings Vol. 8843:
Laser Beam Shaping XIV
Andrew Forbes; Todd E. Lizotte, Editor(s)

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