Vector quartic solitons in birefringent fibers.
Vector quartic solitons in birefringent fibers.
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DOI：
10.1364/ol.417775
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发表时间：
2021-02
期刊：
影响因子：
3.6
通讯作者：
Kangjun Zhao;Chenxin Gao;X. Xiao;Changxi Yang
中科院分区：
文献类型：
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作者：
Kangjun Zhao;Chenxin Gao;X. Xiao;Changxi Yang
从理论上研究了纯四阶色散双折射光纤和四阶色散锁模光纤激光器中四阶孤子的矢量特性。我们发现，与纯标量四阶孤子相比，双折射光纤中的矢量四阶孤子（VQS）除了峰值功率降低、中心频率偏移、轻微的频率啁啾和振荡拖尾减轻等区别外，仍然保持高斯形状.我们还证明了锁模激光腔中的脉冲整形可以明显地促进凯利边带的形成和振荡尾部的畸变。此外，我们还得到了四次群速度锁定和偏振旋转矢量孤子的动力学演化，丰富了VQS的非线性群体。我们相信，我们精心设计的研究结果将为VQS的基本理解和潜在应用带来深刻的见解。
We theoretically investigated the vector properties of quartic solitons in a pure fourth-order-dispersion birefringent fiber and a quartic-dispersion-dominant mode-locked fiber laser. We found that, compared with scalar pure quartic solitons, a vector quartic soliton (VQS) in the birefringent fiber still preserves the Gaussian shape, except for the distinctions of reduced peak power, central frequency offset, slight frequency chirp, and mitigated oscillatory tails. We also demonstrated that pulse shaping in the mode-locked laser cavity could explicitly facilitate the formation of Kelly sidebands and distortion of oscillatory tails. Furthermore, dynamical evolutions of quartic group-velocity-locked and polarization-rotating vector solitons were obtained to enrich the nonlinear community of VQSs. We believe that our elaborate findings will bring insights into both the fundamental understanding and potential applications of VQSs.