发表机构
State Key Laboratory for Artificial Microstructure and Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences; Peking University Yangtze Delta Institute of Optoelectronics; Collaborative Innovation Center of Extreme Optics, Shanxi University; Hefei National Laboratory（北京大学物理学院人工微结构和介观物理国家重点实验室及纳米光电前沿科学中心; 中国科学院物理研究所北京凝聚态物理国家研究中心; 北京大学长三角光学光电研究院; 山西大学极端光学协同创新中心; 合肥国家实验室）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文研究了谐振耦合孤子微梳中泵浦功率与带宽的标度关系，发现最优耦合下最小泵浦功率随带宽的三分之二次方变化，优于直接泵浦的二次方标度，实验验证了该设计规则。
AI 中文摘要
孤子微梳在拓宽其光学带宽时需要增加泵浦功率。通过辅助微谐振器进行谐振泵浦可以降低维持孤子所需的功率，但同时也会增加孤子形成所需的功率。我们证明这种竞争导致了最优的谐振器间耦合，并且预测的最小输入泵浦功率随梳齿带宽的三分之二次方变化，这与直接泵浦下的二次方标度形成对比。实验支持相反的功率趋势，为高功率效率、超宽带孤子微梳提供了设计规则。
英文摘要
A soliton microcomb requires increasing pump power as its optical bandwidth is broadened. Resonant pumping through an auxiliary microresonator can reduce the power required to sustain a soliton, but simultaneously increases the power required for soliton formation. We show that this competition leads to optimal inter-resonator coupling, and the predicted minimum input pump power scales as the two-thirds power of the comb bandwidth, in contrast to the quadratic scaling under direct pumping. Experiments support the opposing power trends, providing a design rule for power-efficient, ultra-broadband soliton microcombs.
