Anti-Interference High-Speed Modulation Decoder for Quantum Key Distribution

作     者：Hua-Xing Xu Shao-Hua Wang Chang-Lei Wang Ping Zhang 许华醒;王少华;王昌雷;张平

作者机构：National Engineering Research Center for Public Safety Risk Perception and Control by Big DataChina Academic of Electronics and Information TechnologyBeijing 100041China CETC Academy of Electronics and Information Technology Group Co.Ltd.Beijing 100041China 

出 版 物：《Chinese Physics Letters》 (中国物理快报(英文版))

年 卷 期：2025年第42卷第1期

页      面：34-39页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：supported by the National Natural Science Foundation of China under Grant No.62001440 

主　　题：decoder interferometer polarization 

摘      要：Quantum key distribution is increasingly transitioning toward network applications,necessitating advancements in system performance,including photonic integration for compact designs,enhanced stability against environmental disturbances,higher key rates,and improved *** this letter,we propose an orthogonal polarization exchange reflector Michelson interferometer model to address quantum channel disturbances caused by environmental *** on this model,we designed a Sagnac reflector-Michelson interferometer decoder and verified its performance through an interference *** interference fringe visibility exceeded 98%across all four coding phases at 625 *** results indicate that the decoder effectively mitigates environmental interference while supporting high-speed modulation *** addition,the proposed anti-interference decoder,which does not rely on magneto-optical devices,is well-suited for photonic integration,aligning with the development trajectory for next-generation quantum communication devices.