掺铒光纤锁模振荡器与Nd∶YVO4固体皮秒振荡器的脉冲同步技术  

Pulse Synchronization Between Nd∶YVO4 Picosecond and Er-Doped Fiber Mode-Locked Oscillators

作　　者：叶飞 陈飞[1] 贡航 沈旭玲 杨康文 徐世祥[2] 郝强[1] 曾和平[3] Ye Fei;Chen Fei;Gong Hang;Shen Xuling;Yang Kangwen;Xu Shixiang;Hao Qiang;Zeng Heping(School of Optical Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;College of Electronic Science and Technology,Shenzhen University,Shenzhen,Guangdong 518060,China;State Key Laboratory of Precision Spectroscopy,East China Normal University,Shanghai 200062,China)

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093 [2]深圳大学电子科学与技术学院,广东深圳518060 [3]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

出　　处：《中国激光》2020年第8期332-335,共4页Chinese Journal of Lasers

基　　金：国家重点研发计划(2018YFB0407100);国家自然科学基金(61775142)。

摘　　要：研究了Nd∶YVO4固体皮秒振荡器与掺铒光纤锁模振荡器的脉冲同步技术,为光参量放大、中红外产生等应用奠定了实验基础。实验采用光电二极管分别探测一台商售1064nm Nd∶YVO4固体皮秒振荡器和一台自制1555nm掺铒光纤锁模振荡器的脉冲重复频率,通过混频、低通滤波等电路处理得到了两台激光器重复频率的相对误差,并将该误差信号反馈至内置于1555nm掺铒光纤锁模振荡器中用于精调腔长的压电陶瓷和粗调腔长的步进电机上,实现了两台激光器重复频率的同步。本实验中的同步装置具有结构简单、集成度高、可靠性高的特点。Herein,the pulse synchronization between Nd∶YVO4 picosecond and Er-doped fiber mode-locked oscillators was examined,which is the basis for both optical parametric amplification and generation of mid-infrared.In the experiment,the repetition rates of 1555-nm Er-doped fiber mode-locked oscillator and 1064-nm Nd∶YVO4 picosecond oscillator were detected by a photodiode.The timing delay between the two lasers was detected using a frequency mixing and low-pass filter circuit.The repetition rates of two lasers were synchronized by controlling the piezoelectric transducer and stepper motor in the Er-doped fiber mode-locked oscillator.The proposed configuration exhibits advantages of simple structure,high integration and reliability.

关 键 词：激光器 锁模激光器 光纤激光器 频率锁定 脉冲同步 

分 类 号：TN249[电子电信—物理电子学]