单光子微波光子数据

随着微波光子技术的迅速进步，高速的处理和超弱信号探测能力已经成为了许多应用的主要瓶颈。利用单光子探测器的超弱信号探测能力和超低时间抖动性质，单光子探测和经典的微波光子技术的组合或许能打破上述瓶颈。在本篇文章中，我们首先实现了单光子微波光子的一种新概念，即实现了一种基于超导纳米线单光子探测器和连续时间相关单光子计数模块的 具有相移和频域滤波功能的单光子微波光子信号处理系统。实验结果显示实现了低至-100dBm的超高光学灵敏度，并且信号处理的带宽只受限于单光子探测器的时间抖动。同时，设计的系统显示了超高的抗干扰能力，从具有噪声和强干扰的探测信号中只有在TCSPC中被触发信号相位锁定的信号可以被提取。设计的单光子微波光子概念为微波光子和量子力学的新交叉领域——即量子微波光子——铺平了道路。With the rapid advancement of microwave photonic technology, high-speed signal processing and ultra-weak signal detection capabilities have become the primary bottlenecks in numerous applications. Leveraging the ultra-weak signal detection capability and ultra-low timing jitter property of single-photon detectors (SPDs), the combination of single-photon detection and classical microwave photonic technologies may break through the aforementioned bottlenecks. In this article, we first realize a novel concept of single-photon microwave photonics: a single-photon microwave photonic signal processing system with phase shift and frequency-domain filtering functions, which is built based on a superconducting nanowire single-photon detector (SNSPD) and a time-correlated single-photon counting (TCSPC) module. The experimental results demonstrate an ultra-high optical sensitivity down to -100 dBm, and the bandwidth of the signal processing is only limited by the timing jitter of the SPDs. Meanwhile, the proposed system exhibits exceptional anti-interference performance: only signals whose phase is locked to the trigger signal within the TCSPC module can be extracted from the detected signals contaminated by noise and strong interference. The proposed single-photon microwave photonic concept paves the way for a new interdisciplinary field bridging microwave photonics and quantum mechanics, namely quantum microwave photonics.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于单光子微波光子技术，通过集成超导纳米线单光子探测器和连续时间相关单光子计数模块，实现了具有相移和频域滤波功能的信号处理系统。实验结果表明，系统具备低至-100dBm的超高光学灵敏度、受限于探测器时间抖动的处理带宽以及卓越的抗干扰能力，为量子微波光子新交叉领域奠定了基础。