基于窄带耗散孤子Figure-9光纤振荡器和单级单模光纤放大器的皮秒脉冲光纤前端  

Picosecond pulse fiber front end based on narrow-band dissipative soliton Figure-9 fiber oscillator and single-stage single-mode fiber amplifier

作　　者：张震 段典[1,2] 陈雨君 魏珊珊 马金栋 姚波 毛庆和 ZHANG Zhen;DUAN Dian;CHEN Yujun;WEI Shanshan;MA Jindong;YAO Bo;MAO Qinghe(Anhui Provincial Key Laboratory of Photonics Devices and Materials,Anhui Institute of Optics and Fine Mechanics,HFIPS,Chinese Academy of Sciences,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院合肥物质科学研究院安徽光学精密机械研究所光子器件与材料安徽省重点实验室,安徽合肥230031 [2]中国科学技术大学,安徽合肥230026

出　　处：《量子电子学报》2023年第4期476-482,共7页Chinese Journal of Quantum Electronics

基　　金：国家重点研发计划(2017YFB0405100,2017YFB0405200);中国科学院战略性先导科技专项(B类)(XDB21010300),国家自然科学基金(61805258);先进激光技术安徽省实验室主任基金(20191001);安徽省科技重大专项(201903a07020021)。

摘　　要：报道了一种基于Figure-9光纤振荡器和单级单模光纤放大器的皮秒脉冲光纤前端。通过优化光纤振荡器腔内光纤长度,获得了中心波长约为1064 nm、重复频率10 MHz、脉冲能量0.4 nJ的自启动单脉冲锁模窄带耗散孤子皮秒脉冲;通过优化光纤放大器的增益光纤长度,对光纤振荡器产生的21.07 ps脉冲进行单级单模光纤放大后,脉冲能量达10 nJ时的脉冲光谱依然呈钟形结构,3 dB谱宽和脉宽分别为0.31 nm和19.8 ps,该皮秒脉冲光纤前端有望在精密加工等领域发挥重要作用。A picosecond pulse fiber front end based on a narrow-band dissipative soliton Figure-9 fiber oscillator and a single-stage single-mode fiber amplifier is reported here.By optimizing the fiber length of the fiber oscillator cavity,a self-starting single pulse mode-locked narrow-band dissipative soliton picosecond pulse with a center wavelength of about 1064 nm,a repetition rate of 10 MHz,and a pulse energy of 0.4 nJ is obtained.Then the 21.07 ps picosecond pulse generated by the fiber oscillator is amplified by a single-stage single-mode fiber amplifier,and the spectrum can still maintain a bell-shaped structure with a 3 dB spectral width of 0.31 nm and a pulse width of 19.8 ps,respectively,even the pulse energy reaches 10 nJ.The picosecond fiber front end is expected to play an important role in precision machining and other fields.

关 键 词：激光技术 锁模光纤激光器 脉冲能量 非线性相移 

分 类 号：TN248[电子电信—物理电子学]