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9 October 1998 Highly integrated single-chip optical correlator
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Barriers to commercialization of optical correlators include the complexity and cost of their manufacture, their large size compared to typical electronic processors, and the cost of their components. Using sub-micron CMOS VLSI fabrication processes it is possible to build the two SLMs and photodetector array of a Vander Lugt correlator on a single silicon die. The correlator's lenses can be fabricated on a single piece of glass using diffractive optics technology and then attached to the CMOS die to form a monolithic assembly. This approach greatly reduces the mechanical degrees of freedom that must be controlled by the correlator's housing thus lowering cost, reducing size, and improving reliability. Here we report on the design and performance of a prototype.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael J. O'Callaghan, David J. Ward, Stephen H. Perlmutter, Lianhua Ji, and Christopher M. Walker "Highly integrated single-chip optical correlator", Proc. SPIE 3466, Algorithms, Devices, and Systems for Optical Information Processing II, (9 October 1998);

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