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利用氧化石墨烯作为可饱和吸收体,在被动锁模全正常色散掺镱光纤激光器中研究了多脉冲的现象,在同一抽运功率不同偏振态下,实验获得了矩形脉冲谐波锁模、耗散孤子谐波锁模、准谐波锁模,脉冲峰值周期性调制,脉冲簇、脉冲束、混沌多重脉冲的多脉冲现象,插入激光腔内的2nm窄带滤波器具有限制增益带宽、对脉冲塑形、诱导多脉冲产生的作用,调节偏振控制器相当于改变腔内增益,是实现不同类型多脉冲现象的主要原因,本实验研究有利于加深对多脉冲动力学行为在正常色散区域氧化石墨烯锁模掺镱光纤激光器中的理解。
Using graphene oxide as a saturable absorber, the multi-pulse phenomenon was investigated in a passive mode-locked, normal-dispersion, ytterbium-doped fiber laser. The rectangular pulse harmonic mode-locking Scattered soliton harmonic mode-locked, quasi-harmonic mode-locked, pulse peak periodic modulation, pulse cluster, pulsed beam, multi-pulse multi-pulse chaos phenomenon, inserted into the laser cavity 2nm narrowband filter with limited gain bandwidth, pulse plastic Shape and inducing multi-pulse generation. Adjusting the polarization controller is equivalent to changing the gain in the cavity, which is the main reason for realizing different types of multi-pulse phenomena. This experimental study is conducive to deepening the multi-pulse dynamics in the normal dispersion region of graphene oxide Interlocking ytterbium-doped fiber laser in the understanding.