Spectral manipulation in a high-power ultrafast fiber laser system generating ultrashort pulses with GHz repetition rate  

作　　者：张英韬 李子豪 王天玺 修昊 韦池一 王麓屹 郝默雷 韦小明 杨中民 Yingtao Zhang;Zihao Li;Tianxi Wang;Hao Xiu;Chiyi Wei;Luyi Wang;Molei Hao;Xiaoming Wei;Zhongmin Yang(School of Physics and Optoelectronics,State Key Laboratory of Luminescent Materials and Devices,Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices,Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques,South China University of Technology,Guangzhou 510640,China;Research Institute of Future Technology,South China Normal University,Guangzhou 510006,China)

机构地区：[1]School of Physics and Optoelectronics,State Key Laboratory of Luminescent Materials and Devices,Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices,Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques,South China University of Technology,Guangzhou 510640,China [2]Research Institute of Future Technology,South China Normal University,Guangzhou 510006,China

出　　处：《Chinese Optics Letters》2023年第9期91-95,共5页中国光学快报（英文版）

基　　金：supported by the NSFC Development of National Major Scientific Research Instrument(No.61927816);the Introduced Innovative Team Project of Guangdong Pearl River Talents Program(No.2021ZT09Z109);the Natural Science Foundation of Guangdong Province(No.2021B1515020074);the Mobility Programme of the Sino-German(No.M-0296);the Double First Class Initiative(No.D6211170);the National Natural Science Foundation of China(Nos.U1609219 and 62235014);the Science and Technology Project of Guangdong(No.2020B1212060002);the Key R&D Program of Guangzhou(No.202007020003)。

摘　　要：In this work,we demonstrate the spectral manipulation in an ultrafast fiber laser system that generates ultrashort pulses with a repetition rate of 1.2 GHz and two switchable modes—a 1064-nm fundamental laser mode with a maximum output power of 66.6 W,and a 1125-nm Raman laser mode with a maximum output power of 17.23 W.The pulse width,beam quality,and power stability are carefully characterized.We also investigate a method to switch between the two modes by manipulating the duty cycle of the modulation signal.It is anticipated that this bi-mode ultrafast fiber laser system can be a promising ultrafast laser source for frontier applications,such as micromachining,bioimaging,and spectroscopy.

关 键 词：high power high repetition rate ultrafast fiber laser 

分 类 号：TN248[电子电信—物理电子学]