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Proceedings Paper

Spatial frequency diversity in liquid crystal spatial light modulators applied to signal-to-noise ratio improvement in coherent optodigital processors
Author(s): Angel Sauceda-Carvajal; Maximiliano Vera Perez; Victor Hugo Diaz Ramirez; Arturo Bocanegra-Haro; Eduardo Tepichin-Rodriguez
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Paper Abstract

Intrinsic properties of liquid crystals spatial light modulators, as sampling devices are commonly seen as disadvantages in opto-digital data processing; because the loss of light power due the replicated spectrum at the sampling process. We claim this apparent disadvantage can be seen as an advantage if we consider to filter Q replicates of the Sampled image Fourier spectrum. Moreover, we can use this technique to improve the signal to noise ratio (S/N), or to develop several operations in parallel over the same input data. In this work we are interestd in improving the S/N in opto-digital image substraction. Experimental results which reveal the advantage of this technique are shown.

Paper Details

Date Published: 30 September 2003
PDF: 6 pages
Proc. SPIE 5264, Optomechatronic Systems IV, (30 September 2003); doi: 10.1117/12.514677
Show Author Affiliations
Angel Sauceda-Carvajal, Autonomous Univ. of Baja California (United States)
Maximiliano Vera Perez, Autonomous Univ. of Baja California (United States)
Victor Hugo Diaz Ramirez, Autonomous Univ. of Baja California (United States)
Arturo Bocanegra-Haro, Autonomous Univ. of Baja California (United States)
Eduardo Tepichin-Rodriguez, Instituto Nacional de Astrofisica, Optica y Electronica (Mexico)

Published in SPIE Proceedings Vol. 5264:
Optomechatronic Systems IV
George K. Knopf, Editor(s)

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