High-precision optical convolution computing based on arbitrary-base hybrid analog-digital coding

Guoqing Ma; JunJie Yu; Changhe Zhou

doi:10.1117/12.2602526

26 November 2021 High-precision optical convolution computing based on arbitrary-base hybrid analog-digital coding

Guoqing Ma, JunJie Yu, Changhe Zhou

Proceedings Volume 11898, Holography, Diffractive Optics, and Applications XI; 118981C (2021) https://doi.org/10.1117/12.2602526
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Abstract

Here, we proposed an arbitrary hybrid analog-digital coding method which can realize high-precision digital optical convolution calculation. In this framework, the initial high-bit matrix can be decomposed into a series of low-bit encoding matrices in temporal or spatial sequence. And the final convolution result is a hybrid analog-digital matrix and obtained after decoding similar to binary-decimal conversion. As an example, we implement the analog and digital convolution calculation of two 10×10 matrices in the optical convolution calculation system. Compared with analog optical computing, this coding method is further capable of improving the optical convolutional computing accuracy of large-scale matrices.

Citation Download Citation

Guoqing Ma, JunJie Yu, and Changhe Zhou "High-precision optical convolution computing based on arbitrary-base hybrid analog-digital coding", Proc. SPIE 11898, Holography, Diffractive Optics, and Applications XI, 118981C (26 November 2021); https://doi.org/10.1117/12.2602526

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