量子电子学报2025，Vol.42Issue(6)：779-787,9.DOI:10.3969/j.issn.1007-5461.2025.06.005
锁频锁相宽带激光频率快速切换实验研究
Experimental study on rapid switching of phase-locked and frequency-locked broadband lasers
摘要
Abstract
Atomic interference gyroscopes have extensive application prospects in both scientific research and technological development.Conducting research on laser frequency locking technology with high stability,low phase noise,and the ability to rapidly switch frequencies is of great significance for improving the measurement accuracy and application capabilities of atomic interference gyroscopes.This article proposes a synchronous frequency-switching scheme for laser time-division multiplexing.By performing synchronous feed-forward on the current modulation port of the lasers,we have achieved rapid and synchronous frequency switching in broadband between two lasers in a locked state,and have developed a laser and optical system with high stability and low phase noise.Experimental results show that the frequency stability and phase noise of the laser maintain good performance before and after frequency switching.The frequency switching bandwidth of the laser reaches 1.2 GHz,the frequency switching time is less than 3 ms,the relative frequency stability is better than 4×10-12@20 s,and the phase noise is better than-95 dBc/Hz@(0.1-10 kHz).关键词
激光技术/激光锁频/激光锁相/快速频率切频/前馈控制/原子陀螺Key words
laser techniques/laser frequency locking/laser phase locking/rapid frequency switching/feedforward control/atomic gyroscope分类
电子信息工程引用本文复制引用
李杨,鲁思滨,蒋敏,孙川,陈小莉,付佳豪,李润兵,王谨,詹明生..锁频锁相宽带激光频率快速切换实验研究[J].量子电子学报,2025,42(6):779-787,9.基金项目
国家自然科学基金(12104466,11674362,91536221,91736311),"量子通信与量子计算机"国家科技重大专项(2021ZD0300604),国家重点研发计划(2016YFA0302002),中国科学院战略先导研究计划(XDB21010100),湖北省杰出青年科学基金(2018CFA082) （12104466,11674362,91536221,91736311）
