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Optical coherenscopy based on phase-space tomography



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Cámara, Alejandro and Rodrigo Martín-Romo, José Augusto and Alieva, Tatiana Krasheninnikova (2013) Optical coherenscopy based on phase-space tomography. Optics Express, 21 (11). pp. 13169-13183. ISSN 1094-4087

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Official URL: http://dx.doi.org/10.1364/OE.21.013169


Partially coherent light provides attractive benefits in imaging, beam shaping, free-space communications, random medium monitoring, among other applications. However, the experimental characterization of the spatial coherence is a difficult problem involving second-order statistics represented by four-dimensional functions that cannot be directly measured and analyzed. In addition, real-world applications usually require quantitative characterization of the local spatial coherence of a beam in the absence of a priori information, together with fast acquisition and processing of the experimental data. Here we propose and experimentally demonstrate a technique that solves this problem. It comprises an optical setup developed for automatized video-rate measurement and a method -phase-space tomographic coherenscopy-allowing parallel data acquisition, processing, and analysis. This technique significantly simplifies the spatial coherence analysis and opens up new perspectives for the development of tools exploiting the degrees of freedom hidden into light coherence.

Item Type:Article
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© 2013 Optical Society of America. The Spanish Ministerio de Economía y Competitividad is acknowledged for the project TEC2011-23629. A. Cámara thanks the financial support from the Consejería de Educación de la Comunidad de Madrid and the European Social Fund.

Uncontrolled Keywords:Radon-wigner display, Spatial coherence, Atmospheric-turbulence, Beams, Reconstruction, Interferometer, Microscope, Fields
Subjects:Sciences > Physics > Optics
ID Code:27487
Deposited On:01 Dec 2014 10:45
Last Modified:02 Dec 2014 08:17

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