Understanding low-threshold mode-locking at multi-GHz repetition rate  

作　　者：Wenbin He Meng Pang Philip St.J.Russell 

机构地区：[1]Russell Centre for Advanced Lightwave Science,Shanghai Institute of Optics and Fine Mechanics and Hangzhou Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai,201800,China [2]State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science,Shanghai Institute of Optics and Fine Mechanics CAS,Shanghai,201800,China

出　　处：《Light(Science & Applications)》2025年第1期13-14,共2页光(科学与应用)(英文版)

摘　　要：Continuous-wave mode-locking at multi-GHz repetition rates is achieved in an ultrashort laser cavity at critical pulse energies 100 times lower than predicted by conventional theory.The authors reveal that dynamic gain depletion and recovery between consecutive round-trips is the key factor behind a low-pulse-energy transition from Q-switched mode-locking(QSML)to continuous-wave mode-locking(CWML).As well as providing new insight into gain dynamics,the results suggest a practical route to low-threshold lasing at very high-repetition rates.

关 键 词：SWITCHED REPETITION LOCKING 

分 类 号：O43[机械工程—光学工程]