摘要
We demonstrate the generation of noise-like pulses(NLPs)and soliton rains in a graphene saturable absorber modelocked erbium-doped fiber laser.Typical NLPs are obtained at a proper pump power and in a cavity polarization state.The soliton rain operation with multiple solitons can be achieved by finely adjusting the cavity polarization state.In addition,distinctive multi-soliton interactions are observed and investigated,including the fundamental mode-locking and multiple pulses.The experimental results can help further understand nonlinear pulse dynamics in ultrafast optics.
基金
Project supported by the Hunan Provincial Natural Science Foundation of China(Nos.2018JJ3514 and 2019JJ40280)
the Research and Development Plan of Key Areas in Hunan Province in 2019(No.2019GK2101)
the Jiangsu Provincial Natural Science Foundation of China(No.BK20181050)
the Natural Science Foundation of Jiangsu Higher Education Institutions of China(Nos.18KJB413007 and 19KJB10061)
the 2019 Youth Special Scientific Research Project of Nanjing Xiaozhuang University,China(No.2019NXY17)。
