摘要
An actively mode-locked fiber laser with controllable pulse repetition rate and tunable pulse duration is presented,in which an optical delay line(ODL)is used to adjust the cavity length precisely for regulating the repetition rate,and a semiconductor optical amplifier(SOA)is introduced for enabling the pulse duration control.Experimentally,continuous tuning of the repetition rate from 2 GHz to 6 GHz is realized,which is limited by the availability of an even higher repetition rate radiofrequency(RF)source.Specifically,when the repetition rate is fixed at 2.5 GHz,the pulse duration can be tuned from 4 ps to30 ps,which is,to the best of our knowledge,the widest tuning range of pulse duration ever achieved in a gigahertz(GHz)repetition rate actively mode-locked 1.5μm fiber laser oscillator.
作者
Gang Yao
Zhigang Zhao
Zhaojun Liu
Xibao Gao
Zhenhua Cong
姚港;赵智刚;刘兆军;高悉宝;丛振华(School of Information Science and Engineering,and Shandong Provincial Key Laboratory of Laser Technology and Application,Shandong University,Qingdao 266237,China;State Key Laboratory of Quantum Optics and Quantum Optics Devices,Shanxi University,Taiyuan 030006,China)
基金
supported in part by the National Natural Science Foundation of China(Nos.62075116 and 62075117)
Natural Science Foundation of Shandong Province(Nos.ZR2019MF039 and ZR2020MF114)
Qilu Young Scholars from Shandong University
Distinguished Young Scholars from Shandong University。
