Chang Shuo, Zheng Yameng, Wang Zhaokun, Shen Changyu
Opt Lett. 2021 Nov 15;46(22):5695-5698. doi: 10.1364/OL.443319.
In this Letter, we have demonstrated the generation of dissipative solitons (DSs) or multi-wavelength noise-like pulses (NLPs) directly from a common linear Yb-doped fiber laser in the presence of stimulated Raman scattering (SRS). For the DSs, the pulse energy of the solitons with a pulse width of 74.2 ps reaches 21.2 nJ. For the NLPs, the generation of the main NLP (1032 nm) together with the first-order Raman NLP (1080 nm) is realized. The narrow peak of the double-scale autocorrelation trace is characterized by quasi-periodic beat pulses with a pulse beating of 40.6 fs and a pulse separation of 79 fs, indicating that the generated solitons at dual wavelengths are mutually coherent. Furthermore, a three-color stable NLP complex with a broader spectrum is also obtained. The results contribute to an in-depth understanding of nonlinear dynamics and ultrafast physics.
在本信函中，我们展示了在受激拉曼散射（SRS）存在的情况下，直接从普通线性掺镱光纤激光器中产生耗散孤子（DSs）或多波长类噪声脉冲（NLPs）。对于DSs，脉宽为74.2 ps的孤子脉冲能量达到21.2 nJ。对于NLPs，实现了主NLP（1032 nm）与一阶拉曼NLP（1080 nm）的产生。双尺度自相关迹线的窄峰由脉冲拍频为40.6 fs且脉冲间隔为79 fs的准周期拍频脉冲表征，这表明在双波长处产生的孤子相互相干。此外，还获得了具有更宽光谱的三色稳定NLP复合体。这些结果有助于深入理解非线性动力学和超快物理学。
