On-chip topological transport of integrated optical frequency combs  

作　　者：ZHEN JIANG HONGWEI WANG PENG XIE YUECHEN YANG YANG SHEN BO JI YANGHE CHEN YONG ZHANG LU SUN ZHENG WANG CHUN JIANG YIKAI SU GUANGQIANG HE 

机构地区：[1]State Key Laboratory of Advanced Optical Communication Systems and Networks,Department of Electronic Engineering,Shanghai Jiao Tong University,Shanghai 200240,China [2]SJTU Pinghu Institute of Intelligent Optoelectronics,Department of Electronic Engineering,Shanghai Jiao Tong University,Shanghai 200240,China [3]School of Electrical&Electronic Engineering,Nanyang Technological University,Singapore 639798,Singapore [4]State Key Laboratory of Precision Spectroscopy,East China Normal University,Shanghai 200062,China

出　　处：《Photonics Research》2025年第1期163-176,共14页光子学研究(英文版)

基　　金：Key-Area Research and Development Program of Guangdong Province(2018B030325002);National Natural Science Foundation of China(62075129,61975119,62305210,62035016,62105200);Science and Technology on Metrology and Calibration Laboratory(JLKG2024001B002);SJTU Pinghu Institute of Intelligent Optoelectronics(2022SPIOE204).

摘　　要：Optical frequency combs in integrated photonics have widespread applications in high-dimensional optical computing,high-capacity communications,high-speed interconnects,and other paradigm-shifting technologies.However,quantum frequency combs with high-dimensional quantum states are vulnerable to decoherence,particularly in the presence of perturbations such as sharp bends.Here we experimentally demonstrate the robust onchip topological transport of quantum frequency combs in valley photonic crystal waveguides.By measuring the time correlations and joint spectral intensity of the quantum frequency combs,we show that both quantum correlations and frequency entanglement remain robust against sharp bends,owing to the topological nature of the quantum valley Hall effect.We also demonstrate that dissipative Kerr soliton combs with a bandwidth of 20 THz maintain their spectral envelope and low-noise properties even in the presence of structure perturbations.These topologically protected optical frequency combs offer robust,complex,highly controllable,and scalable light sources,promising significant advances in high-dimensional photonic information processing.

关 键 词：TOPOLOGICAL QUANTUM PERTURBATIONS 

分 类 号：TN25[电子电信—物理电子学] O431.2[机械工程—光学工程]