Michelson interferometric methods for full optical complex convolution

Haoyan Kang; Jonathan George; Behrouz Movahhed Nouri; Maria Solyanik-Gorgone; Hamed Dalir; Volker J. Sorger

doi:10.1117/12.2650952

15 March 2023 Michelson interferometric methods for full optical complex convolution

Haoyan Kang, Jonathan George, Behrouz Movahhed Nouri, Maria Solyanik-Gorgone, Hamed Dalir, Volker J. Sorger

Proceedings Volume 12438, AI and Optical Data Sciences IV; 1243803 (2023) https://doi.org/10.1117/12.2650952
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Dynamic real-time optical processing has significant potential for accelerating specific tensor algebra. Here we present the first demonstration of simultaneous amplitude and phase modulation of an optical two-dimension signal in the Fourier plane of a thin lens. Two spatial light modulators (SLMs) arranged in a Michelson interferometer modulate the amplitude and the phase while being simultaneously in the focal plane of two Fourier lenses. The lenses frame an interferometer in a 4f-system enabling full modulation in the Fourier domain of a telescope. Main sources of phase noise and losses are discussed such as native to SLMs non-linear inter-pixel crosstalk, variability in modulation efficiency as a function of projected mask parameters, and Fresnel’s optics limitations. Such a system is of extreme utility in rapidly progressing fields of optical computing, hardware acceleration, encryption, and machine learning, where neglecting phase modulation can lead to impractical bit-error rates.

Conference Presentation

Citation Download Citation

Haoyan Kang, Jonathan George, Behrouz Movahhed Nouri, Maria Solyanik-Gorgone, Hamed Dalir, and Volker J. Sorger "Michelson interferometric methods for full optical complex convolution", Proc. SPIE 12438, AI and Optical Data Sciences IV, 1243803 (15 March 2023); https://doi.org/10.1117/12.2650952

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