Gray scale operation of a multichannel optical convolver using the Semetex magnetooptic spatial light modulatorA new multichannel optical correlator/convolver architecture which uses an acoustooptic light modulator for the input channel and a Semetex magnetooptic spatial light modulator (MOSLM) for the set of parallel reference channels is presented. Details of the anamorphic optical system are discussed. Experimental results illustrate the 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.
Document ID
19880041386
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Davis, Jeffrey A. (San Diego State Univ. San Diego, CA, United States)
Day, Timothy (San Diego State Univ. San Diego, CA, United States)
Lilly, Roger A. (San Diego State Univ. San Diego, CA, United States)
Taber, Donald B. (San Diego State University CA, United States)
Liu, Hua-Kuang (California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)