时域波形可编程的飞秒脉冲串掺镱光纤放大  

Time-Domain Waveform Programmable Femtosecond Burst-Mode Ytterbium-Doped Fiber Amplification

作　　者：张聪聪 刘洋[1] 谢戈辉 邓泽江 熊世萍 罗大平 李文雪[1,2] 吴斌 陈坤峰[3] Zhang Congcong;Liu Yang;Xie Gehui;Deng Zejiang;Xiong Shiping;Luo Daping;Li Wenxue;Wu Bin;Chen Kunfeng(State Key Laboratory of Precision Spectroscopy,East China Normal University,Shanghai 200062,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan,Shanxi 030006,China;Science and Technology on Electronic Test&Measurement Laboratory,The 41st Research Institute of CETC,Qingdao,Shandong 266000,China)

机构地区：[1]华东师范大学精密光谱科学与技术国家重点实验室,上海200062 [2]山西大学极端光学协同创新中心,山西太原030006 [3]中国电子科技集团公司第四十一研究所电子测试科学技术实验室,山东青岛266000

出　　处：《激光与光电子学进展》2021年第23期141-148,共8页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(11874153,11904105,11621404);国家重点研发计划量子调控与量子信息专项(2018YFA0306301);中国博士后科学基金面上项目(2020M681223)。

摘　　要：提出了一种可编程的激光脉冲选取和幅度控制的方法,以产生具有任意时域波形的脉冲串模式激光。采用具有灵活的可编程性的基于现场可编程门阵列结构的脉冲选择单元驱动声光调制器,实现对脉冲串内每个激光脉冲能量的精确控制。基于该创新的脉冲时域特性调控技术,利用掺镱啁啾脉冲光纤放大系统,实现了不同时域波形的高能量激光脉冲串,脉冲串能量为20μJ,脉冲串间重复率为1 MHz,脉冲串内单脉冲宽度小于300 fs。In this paper,a programmable method of laser pulse selection and amplitude control is proposed to generate pulse bursts with arbitrary time-domain waveform.A flexible and programmable pulse picker unit based on field-programmable gate array is used to drive the acousto-optic modulator to realize the fine control of each pulse’s energy in bursts.Based on this innovative regulation technology of pulses’ time-domain characteristics,high-energy bursts with different time-domain waveforms are realized by using ytterbium-doped chirped pulse fiber amplification system.The outputs of the system are the bursts with burst energy of 20 μJ,burst repetition rate of 1 MHz,and pulse width of less than 300 fs.

关 键 词：激光光学 超快激光器 光纤激光 脉冲整形 

分 类 号：TN248[电子电信—物理电子学]