Practical ultra-low frequency noise laser system for quantum sensors Mingyong Jing, Shiyu Xue, Hao Zhang, Linjie Zhang, Liantuan Xiao and Suotang Jia EPJ Quantum Technol., 11 1 (2024) 84 Published online: 19 December 2024 DOI: 10.1140/epjqt/s40507-024-00297-z