Digital Convolution And Correlation With Electro-Optic Bragg Processors

R. Arrathoon; E. R. Schroeder; L. D. Hutcheson; P. R. Haugen

doi:10.1117/12.944021

28 November 1984 Digital Convolution And Correlation With Electro-Optic Bragg Processors

R. Arrathoon, E. R. Schroeder, L. D. Hutcheson, P. R. Haugen

Proceedings Volume 0495, Real-Time Signal Processing VII; (1984) https://doi.org/10.1117/12.944021
Event: 28th Annual Technical Symposium, 1984, San Diego, United States

Abstract

A digital approach to integrated optical convolution and correlation is proposed and analyzed. The method relies on the application of a series of time-delayed signals to a large group of individually addressable electro-optic Bragg gratings in order to provide the digital equivalent of a traveling index wave. Unlike previous systems, the wavelength of the traveling index wave is under program control. The associated time-bandwidth product may be varied independently of the applied frequency making the technique suitable for signal processing applications. A modification of the theory of analog Bragg diffraction is developed which includes the effects of discrete spatial sampling in the convolution and correlation process for both continuous-time and sampled-time inputs. An analysis of the potential advantages of this approach for algebraic processors and broad-band ambiguity processors is also presented.

Citation Download Citation

R. Arrathoon, E. R. Schroeder, L. D. Hutcheson, and P. R. Haugen "Digital Convolution And Correlation With Electro-Optic Bragg Processors", Proc. SPIE 0495, Real-Time Signal Processing VII, (28 November 1984); https://doi.org/10.1117/12.944021

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