Multi-dimensional optical computing

Zhetao Jia; Hector Rubio; Lilian Neim; Jagang Park; Stefan F. Preble; Boubacar Kante

doi:10.1117/12.3027900

3 October 2024 Multi-dimensional optical computing

Zhetao Jia, Hector Rubio, Lilian Neim, Jagang Park, Stefan F. Preble, Boubacar Kante

Author Affiliations +

Proceedings Volume PC13113, Photonic Computing: From Materials and Devices to Systems and Applications; PC131130F (2024) https://doi.org/10.1117/12.3027900
Event: Nanoscience + Engineering, 2024, San Diego, California, United States

Abstract

We propose a mode-division multiplexing (MDM) approach for small-scale optical matrix multiplication and a multi-dimensional architecture for large-scale applications, supplementing wavelength-division multiplexing (WDM) with MDM to increase channel capacity for computations. We design and experimentally demonstrate key components for the MDM computing system, i.e., a multimode beam splitter, a micro-ring modulator for high-order modes, and a multimode waveguide bend. We further show a 2-by-2 matrix multiplexing system fabricated in a foundry that works for both MDM and MDM-WDM computing, which confirms that our approach successfully increases the input vector size for computing and ensures compatibility with existing WDM networks.

Conference Presentation

Citation Download Citation

Zhetao Jia, Hector Rubio, Lilian Neim, Jagang Park, Stefan F. Preble, and Boubacar Kante "Multi-dimensional optical computing", Proc. SPIE PC13113, Photonic Computing: From Materials and Devices to Systems and Applications, PC131130F (3 October 2024); https://doi.org/10.1117/12.3027900

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