Luo Min, Zhang Ze-Xian, Liu Meng, Luo Ai-Ping, Xu Wen-Cheng, Luo Zhi-Chao
Opt Express. 2022 Jun 6;30(12):22143-22152. doi: 10.1364/OE.459560.
Derived from oceanography, nowadays the investigation of rogue waves (RWs) has been widely spread in various fields, particularly in nonlinear optics. Passively mode-locked fiber laser has been regarded as one of the excellent platforms to investigate the dissipative RWs (DRWs). Here, we report the observation of DRW generation induced by single and multi-soliton explosions in a passively mode-locked fiber laser. It was demonstrated that through the gain-mediated soliton interactions, one soliton could erupt because of the explosion of another soliton in the laser cavity. Meanwhile, the high-amplitude waves, which fulfill the DRWs criteria, could be detected in the multi-soliton explosion states. The DRWs were identified by characterizing the peak intensity statistics of the time-stretched soliton profiles. Particularly, it was found that the ratio between the highest recorded amplitudes and significant wave heights (SWHs) of DRWs induced by multi-soliton explosions is higher than that by single-soliton explosion case. Our findings will further contribute to the understanding of the physical mechanisms of DRWs in the soliton explosion regime.
源于海洋学，如今对 rogue 波（RWs）的研究已在各个领域广泛开展，尤其是在非线性光学领域。被动锁模光纤激光器被视为研究耗散 rogue 波（DRWs）的优秀平台之一。在此，我们报告了在被动锁模光纤激光器中由单孤子和多孤子爆炸诱导产生 DRWs 的观测结果。结果表明，通过增益介导的孤子相互作用，一个孤子可能会因激光腔内另一个孤子的爆炸而爆发。同时，在多孤子爆炸状态下可以检测到满足 DRWs 标准的高振幅波。通过对时间拉伸孤子轮廓的峰值强度统计来识别 DRWs。特别地，发现多孤子爆炸诱导的 DRWs 的最高记录振幅与有效波高（SWHs）之比高于单孤子爆炸情况。我们的发现将进一步有助于理解孤子爆炸 regime 中 DRWs 的物理机制。
