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Real-time parallel optical analog-to-digital conversion

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Abstract

A technique for optically performing parallel analog-to-digital conversion on incoherent two-dimensional inputs at real-time rates is described. The system uses a birefringent optical real-time input transducer combined with a detector array and optical thresholding. Quantization and bit plane outputs are produced in parallel without scanning. An experimental system with three-bit accuracy is described.

© 1980 Optical Society of America

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