Mohamed Mostafa I, Coillet Aurélien, Grelu Philippe
Laboratoire Interdisciplinaire Carnot de Bourgogne UMR 6303 CNRS, Université de Bourgogne, F-21000, Dijon, France.
Department of Physics, Faculty of Science, Alexandria University, Moharram Bek, 21511 Alexandria, Egypt.
Nat Commun. 2024 Oct 15;15(1):8875. doi: 10.1038/s41467-024-52954-7.
Ultrafast fiber lasers constitute a flexible platform to investigate new solitary wave concepts. To surpass the low energy limitation of the conventional solitons generated in standard telecom fibers, successive breakthroughs have promoted the usage of an important frequency chirping within fiber oscillators. This lead to original solitary wave regimes such as stretched-pulse, all-normal-dispersion, and self-similar dynamics. We here revisit ultrafast fiber lasers built from standard optical fibers featuring solely anomalous dispersion. We propose a new cavity design enhancing key dissipative effects with contained frequency chirping and demonstrate the generation of high energy pulses in the few-picoseconds regime. The involved intracavity dynamics blends conventional and dissipative soliton features in an unseen way with low- and high-energy propagation regions, allowing an increased flexibility and novel scalability prospects.
超快光纤激光器构成了一个研究新孤波概念的灵活平台。为了突破标准电信光纤中产生的传统孤子的低能量限制,一系列突破推动了光纤振荡器中重要频率啁啾的应用。这导致了诸如拉伸脉冲、全正色散和自相似动力学等原始孤波状态。我们在此重新审视由仅具有反常色散的标准光纤构建的超快光纤激光器。我们提出了一种新的腔设计,在包含频率啁啾的情况下增强关键耗散效应,并演示了在几皮秒范围内产生高能量脉冲。所涉及的腔内动力学以一种前所未有的方式将传统孤子和耗散孤子特征与低能量和高能量传播区域融合在一起,从而增加了灵活性和新的可扩展性前景。