RT Book, Section T1 Opto-electronic emulation of a programmable digital circuit A1 Rodríguez, E. E. A1 Zúñiga, H. J. A1 Tepichín Rodríguez, Eduardo A1 Calvo Padilla, María Luisa AB A programmable digital circuit typically consists of a microprocessor, a memory device, an input data device and an output data device, with its corresponding communication busses. These devices work following a program which is stored in the memory device, as codified instructions. An opto-electronic system that emulates a programmable digital circuit is proposed and described in this work. This circuit is commanded by a sequential program stored as a spatial distribution of Fourier Holograms into a photorefractive crystal. The sequential program is conformed by instructions, which have been codified as binary pixels maps. To read and decode each instruction, the spatial position of the photorefractive crystal must change; and then a CCD camera captures the output image of the Fourier Hologram. Our LabVIEW software decodes the instruction from the captured output image and it commands the circuit to realize the decoded instruction. This software controls the CCD camera and an electromechanical system which moves the spatial position of the photorefractive crystal. The electromechanical system is continuously in communication with a PC through our software. This is because the electronic circuit of the electromechanical system, moves three stepper motors; depending on the position in which the crystal needs to be to read the next instruction. The experimental results and the complete description of the practical advantages and disadvantages of the complete engineering system and the emulation of the opto-electronic programmable digital circuit will be described in this work. PB American Institute of Physics (AIP) SN 978-0-7354-0511-0 YR 2008 FD 2008 LK https://hdl.handle.net/20.500.14352/53355 UL https://hdl.handle.net/20.500.14352/53355 LA eng NO 1.- M. Morris Mano, Computer System Architecture, Pearson Education, USA (1994).2.- Barry B. Brey, The Intel Microprocessors, Pearson Education, USA (2000).3.- M. Morris Mano, Digital logic and computer design, Prentice Hall, USA (1986).4.- J. W. Goodman, Introduction to Fourier Optics, Third Edition, McGraw-Hill (2000).5.- P. Várhegyi, P. Koppa, F. Ujhelyi, E. Lörincz, Applied Optics, vol. 44, 3024 (2005). NO © 2008 American Institute of Physics.Ibero-American Meeting on Optics (6º. 2007. Campinas, Brasil) / Latin-American Meeting on Optics, Lasers, and Applications (RIAO/OPTILAS) (9º. 2007. Campinas, Brasil).Authors thank CONACyT and INAOE for the support provided through the Project PY 12822 and the scholarships 190263 and 191110. NO Consejo Nacional de Ciencia y Tecnología (CONACyT), México NO Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE), México DS Docta Complutense RD 4 may 2024