Spatial-Wavelength Multiplexing Reliable Photonic Integrated General-Purpose Analog Computing System
Abstract
In the "post-Moore era", the growing challenges in traditional computing have driven renewed interest in analog computing, leading to various proposals for the development of general-purpose analog computing (GPAC) systems. In this work, we present a GPAC prototype featuring a silicon photonic chip designed for fully optical analog computation. This system leverages on-chip multi-channel architectures to enable parallel processing and utilizes wavelength-division multiplexing to significantly enhance computational capacity. In addition, we have developed an error-correction algorithm to monitor processing operations in real time, ensuring the reliability of computational results. Experimentally, we demonstrate the system's capability to solve ordinary differential equations and its applications in communications, microwave photonics, and image processing. The chip's energy efficiency is evaluated to reach up to 227 tera-operations per second per watt. Through this research, we provide a novel hardware framework and innovative directions for analog photonic computing.
Cite
@article{arxiv.2505.04197,
title = {Spatial-Wavelength Multiplexing Reliable Photonic Integrated General-Purpose Analog Computing System},
author = {Tao Zhu and Bowen Zhu and Shicheng Zhang and Keren Li and Xianchen Wu and Yazhi Pi and Jie Yan and Daigao Chen and Bingli Guo and Xi Xiao and Lei Wang and Xiaochuan Xu and Xuwei Xue and Shanguo Huang and Zizheng Cao and Shaohua Yu},
journal= {arXiv preprint arXiv:2505.04197},
year = {2025}
}
Comments
29pages, 10 figures, research article