Integrated photonic modular arithmetic processor  

作　　者：YUEPENG WU HONGXIANG GUO BOWEN ZHANG JIFANG QIU ZHISHENG YANG JIAN WU 

机构地区：[1]School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China

出　　处：《Photonics Research》2024年第11期2676-2690,共15页光子学研究(英文版)

基　　金：National Key Research and Development Program of China(2022YFA1203704);National Natural Science Foundation of China(61935003,62021005,62275029)。

摘　　要：Integrated photonic computing has emerged as a promising approach to overcome the limitations of electronic processors in the post-Moore era.However,present integrated photonic computing systems face challenges in achieving high-precision calculations,consequently limiting their potential applications,and their heavy reliance on analog-to-digital(AD)and digital-to-analog(DA)conversion interfaces undermines their performance.Here we propose an innovative photonic computing architecture featuring scalable calculation precision and,to our knowledge,a novel photonic conversion interface.By leveraging the residue number system(RNS)theory,the high-precision calculation is decomposed into multiple low-precision modular arithmetic operations executed through optical phase manipulation.Those operations directly interact with the digital system via our proposed optical digital-to-phase converter(ODPC)and phase-to-digital converter(OPDC).Through experimental demonstrations,we showcase a calculation precision of 9 bits and verify the feasibility of the ODPC/OPDC photonic interface.This approach paves the path towards liberating photonic computing from the constraints imposed by limited precision and AD/DA converters.

关 键 词：operations ARITHMETIC SYSTEM 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]