<100 fs全光纤束缚态耗散孤子被动锁模激光器  

<100 fs All-Fiber Bound Dissipative Soliton Passively Mode-Locked Laser

作　　者：钟敏 林小平 阮秋君 王航 胡志杰 傅昱 黄凤珊 黄柳苹 周慧莉 罗正钱 Zhong Min;Lin Xiaoping;Ruan Qiujun;Wang Hang;Hu Zhijie;Fu Yu;Huang Fengshan;Huang Liuping;Zhou Huili;Luo Zhengqian(Zhangzhou Electric Power Supply Company of State Grid Fujian Electric Power Co.,Ltd.,Zhangzhou,Fujian 363000,China;School of Electronic Science and Engineering(National Model Microelectronics College),Xiamen University,Xiamen,Fujian 361005,China)

机构地区：[1]国网福建省电力有限公司漳州供电公司,福建漳州363000 [2]厦门大学电子科学与技术学院(国家示范性微电子学院),福建厦门361005

出　　处：《激光与光电子学进展》2021年第11期257-262,共6页Laser & Optoelectronics Progress

基　　金：国网福建省电力有限公司科技项目资助(52135020000Q);厦门大学校长基金(20720180057)。

摘　　要：报道了全光纤耗散孤子被动锁模掺铒光纤激光器,通过调节泵浦功率和偏振态可以进一步获得2孤子和3孤子的束缚态耗散孤子。利用反常色散光纤对宽带2孤子束缚态耗散孤子进行脉宽压缩,压缩后的脉宽用双曲正割拟合为96 fs,计算得时间带宽积为0.324,表明其为近转换极限脉冲。宽带光谱的获得得益于腔内的色散管理和碳纳米管可饱和吸收体的大调制深度(20%)。在此基础上,获得了光谱宽度达35 nm的耗散孤子(中心波长为1.57μm),这也是基于碳纳米管产生耗散孤子的最宽光谱。We report an all-fiber dissipative soliton passively mode-locked Er-doped fiber laser. By adjusting the pump power and the polarization states,we can obtain the two-soliton and three-soliton bound state dissipative solitons further. Utilizing anomalous dispersion fiber to compress the pulse duration of wide-bandwidth two-soliton bound dissipative solitons,compressed pulse width is fitted to 96 fs by hyperbolic secant,and the calculated timebandwidth product is 0. 324,indicating the near transform-limited pulse. The broadband spectrum is obtained thanks to the dispersion management in the cavity and high modulation depth(20%)of carbon nanotube(CNT)saturable absorber. On this basis,the dissipative soliton with the spectral width of 35 nm(center wavelength is 1. 57 μm)is obtained,which is also the widest spectrum based on the dissipative soliton produced by CNT.

关 键 词：激光光学 超快非线性光学 脉冲压缩 锁模激光器 束缚态孤子 

分 类 号：O436[机械工程—光学工程]