Xiao Zeyu, Wu Kan, Li Tieying, Chen Jianping
Opt Express. 2020 May 11;28(10):14933-14947. doi: 10.1364/OE.392261.
Dissipative Kerr solitons (DKS) in high-Q microresonators have attracted considerable attention for their broadband optical frequency combs and ultra-short pulse generation. Owing to thermal effects, complicated tuning strategies are required to generate and sustain the single-soliton state in microresonators. In this paper, we propose a novel microresonator scheme based on the Fabry-Pérot fiber resonator and single-layer graphene saturable absorber (SA) and demonstrate that this design allows deterministic single-soliton generation without frequency tuning and has strong robustness against pump perturbation. The soliton range and thermal instability of the proposed device are also discussed. This work facilitates a novel nonlinear platform connecting high-Q microresonators and conventional SA-assisted mode-locking operations.
高Q微谐振器中的耗散克尔孤子（DKS）因其宽带光学频率梳和超短脉冲产生而备受关注。由于热效应，在微谐振器中产生和维持单孤子状态需要复杂的调谐策略。在本文中，我们提出了一种基于法布里-珀罗光纤谐振器和单层石墨烯可饱和吸收体（SA）的新型微谐振器方案，并证明该设计允许在不进行频率调谐的情况下确定性地产生单孤子，并且对泵浦扰动具有很强的鲁棒性。还讨论了所提出器件的孤子范围和热不稳定性。这项工作促进了一个连接高Q微谐振器和传统SA辅助锁模操作的新型非线性平台的发展。
