Zheng Pei-Zhu, Li Ti-Jian, Xia Han-Ding, Feng Meng-Jun, Liu Meng, Ye Bo-Lin, Luo Ai-Ping, Xu Wen-Cheng, Luo Zhi-Chao
Opt Express. 2021 Oct 11;29(21):34684-34694. doi: 10.1364/OE.438605.
Soliton pulsation is one of the most fascinating phenomena in ultrafast fiber lasers, owing to its rich nonlinear dynamics and potential generation of high peak power pulse. However, it is still a challenge to efficiently search for pulsating soliton in fiber lasers because it requires a fine setting of laser cavity parameters. Here, we report the autosetting soliton pulsation in a passively mode-locked fiber laser. The parameters of electronic polarization controller are intelligently adjusted to search for pulsating soliton state by the improved depth-first search algorithm. Moreover, the intensity modulation depth of pulsating soliton could be flexibly controlled. These findings indicate that the intelligent control of a fiber laser is an effective way to explore on-demand soliton dynamics and is also beneficial to the optimization of ultrafast laser performance.
孤子脉动是超快光纤激光器中最引人入胜的现象之一，这归因于其丰富的非线性动力学特性以及产生高峰值功率脉冲的潜力。然而，在光纤激光器中高效搜索脉动孤子仍然是一项挑战，因为这需要精确设置激光腔参数。在此，我们报道了在被动锁模光纤激光器中实现的自动设置孤子脉动。通过改进的深度优先搜索算法智能调整电子偏振控制器的参数，以搜索脉动孤子状态。此外，脉动孤子的强度调制深度可以灵活控制。这些发现表明，对光纤激光器进行智能控制是探索按需孤子动力学的有效途径，也有利于超快激光性能的优化。
