Gray Scale Operation Of A Multichannel Optical Convolver Using The Semetex Magnetooptic Spatial Light Modulator

Jeffrey A. Davis; Timothy Day; Roger A. Lilly; Donald B. Taber; Hua-Kuang Liu; J. A Davis; T. Day; R. A. Lilly; D. B. Taber; H-K Liu

doi:10.1117/12.941999

19 February 1988 Gray Scale Operation Of A Multichannel Optical Convolver Using The Semetex Magnetooptic Spatial Light Modulator

Jeffrey A. Davis, Timothy Day, Roger A. Lilly, Donald B. Taber, Hua-Kuang Liu, J. A Davis, T. Day, R. A. Lilly, D. B. Taber, H-K Liu

Author Affiliations +

Proceedings Volume 0825, Spatial Light Modulators and Applications II; (1988) https://doi.org/10.1117/12.941999
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

We present a new multichannel optical correlator/convolver architecture which uses an acoustooptic light modulator (AOLM) for the input channel and a Semetex magnetooptic spatial light modulator (MOSLM) for the set of parallel reference channels. Details of the anamorphic optical system are discussed. Experimental results illustrate use of the system as a convolver for performing digital multiplication by analog convolution (DMAC). A limited gray scale capability for data stored by the MOSLM is demonstrated by implementing this DMAC algorithm with trinary logic. Use of the MOSLM allows the number of parallel channels for the convolver to be increased significantly compared with previously reported techniques while retaining the capability for updating both channels at high speeds.

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Jeffrey A. Davis, Timothy Day, Roger A. Lilly, Donald B. Taber, Hua-Kuang Liu, J. A Davis, T. Day, R. A. Lilly, D. B. Taber, and H-K Liu "Gray Scale Operation Of A Multichannel Optical Convolver Using The Semetex Magnetooptic Spatial Light Modulator", Proc. SPIE 0825, Spatial Light Modulators and Applications II, (19 February 1988); https://doi.org/10.1117/12.941999

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