被动锁模的传统孤子、耗散孤子掺铒光纤激光器

Passively Mode-Locked Traditional Soliton,Dissipative Soliton Er-Doped Fiber Lasers

报道了基于氧化石墨烯被动锁模的超短脉冲掺铒光纤激光器。通过设计激光腔的结构,可使激光器分别运转在全负色散区以及正色散区。当激光器运行在全负色散区时,可得到重复频率为61 MHz的传统孤子脉冲输出,脉冲宽度为500fs,光谱宽度为5.7nm,最大输出功率为6mW,单脉冲能量为0.1nJ。当激光器运行在正色散区时,可得到重复频率为11.5MHz的耗散孤子脉冲输出,脉冲宽度为143ps,光谱宽度为2.4nm,最大输出功率为21mW,单脉冲能量为1.8nJ。

We demonstrate the ultrafast graphene oxide mode-locked Er-doped fiber lasers. The lasers can operate in all anomalous dispersion regime and normal dispersion regime respectively through the cavity design. When the laser operates in the all anomalous dispersion regime, the traditional soliton pulse trains at repetition rate of 61 MHz are generated. The measured pulse width is 500 fs, spectral width is 5.7 nm, and the maximum output power is 6 mW, corresponding to single pulse energy of 0.1 nJ. In the normal dispersion regime, dissipative soliton pulse trains at repetition rate of 11.5 MHz are generated. The pulse width is 143 ps, spectral width is 2.4 nm, and the maximum output power is 21 mW, corresponding to single pulse energy of 1.8 nJ.