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Optical systems and algorithms for phase-space tomography of one- and two-dimensional beams

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Cámara, Alejandro and Alieva, Tatiana Krasheninnikova and Rodrigo Martín-Romo, José Augusto and Calvo Padilla, María Luisa (2011) Optical systems and algorithms for phase-space tomography of one- and two-dimensional beams. In 22nd Congress of the International Commission for Optics: Light for the Development of The World. Proceedings of SPIE (8011). Society of Photo-Optical Instrumentation Engineers (SPIE). ISBN 978-0-81948-585-4

Official URL: http://dx.doi.org/10.1117/12.902148




Abstract

The application of partially coherent optical beams for imaging, free space communication, random medium analysis requires controlling its mutual intensity. This task can be done using the phase-space tomography method consisting on the reconstruction of the Wingner distribution (WD), and therefore the mutual intensity, from its projections associated with the fractional power spectra. We propose two schemes that apply spatial light modulators (SLMs) for the measurements of the required WD projections in the case of one- and two-dimensional optical signals. The use of the SLMs allows rapid data acquisitions and operative change of the projection number. Moreover, the measured intensity distributions do not require further rescaling, which accelerates the WD reconstruction algorithm and improves its efficiency. The developed numerical methods provide different ways for data analysis such as the reconstuction of the WD using the inverse Radon transform and its visualization for the case of one-dimensional signal; the determination of the mutual intensity for two fixed points without previous reconstruction of the entire WD for two-dimensional signal, ets. The validity of the proposed approaches has been verified experimentally for the test signals and results are in a good agreement with the numerical simulation.


Item Type:Book Section
Additional Information:

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE.
Congress of the International Commission for Optics - Light for the Development of the World (22º. 2011. Puebla, México).

Uncontrolled Keywords:Radon-Wigner Display, Complex Fields, Reconstruction, Transform
Subjects:Sciences > Physics > Optics
ID Code:25416
Deposited On:14 May 2014 08:08
Last Modified:14 May 2014 08:08

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