高能微谐振器孤子产生
High-Energy Microresonator Soliton Generation
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中文总结 AI 辅助
研究如何增加反常色散克尔微谐振器的脉冲能量，通过基于平均场腔模型的标度律及数值模拟，表明脉冲能量与输出耦合有关，强过耦合腔可使脉冲能量超pJ水平，泵浦特定腔得到6 pJ脉冲，有望改善应用性能并补充锁模激光器。
中文摘要 AI 辅助
克尔谐振器能在紧凑平台中产生稳定频率梳，应用于相干通信、传感、量子信息处理和天体物理学等领域。此外，超短脉冲可通过传统锁模激光器无法实现的波长和重复率灵活性来产生，这对包括生物医学和材料加工在内的高峰值功率应用很有必要。然而，这些应用所需的单脉冲能量需比当前源的fJ水平显著提高。本文描述并演示了一种增加反常色散克尔微谐振器中脉冲能量的简单方法。通过基于平均场腔模型的标度律并由精确的数值模拟支持，表明若有足够驱动功率，脉冲能量随输出耦合强烈缩放。在强过耦合腔中，飞秒脉冲可稳定且脉冲能量超过pJ水平。利用此理论框架，通过用2.6 ps时间透镜产生的脉冲泵浦具有30%输出耦合的12 GHz Si3N4腔，观察到稳定的74 fs脉冲，记录输出脉冲能量为6 pJ。高能克尔谐振器有望改善当前应用的性能，并补充高峰值功率应用中的锁模激光器。
英文摘要
Kerr resonators generate stable frequency combs in a compact platform with applications in coherent communications, sensing, quantum information processing, and astrophysics. Ultrashort pulses can be generated, moreover, with a wavelength and repetition rate flexibility inaccessible by traditional mode-locked lasers, which is desirable for high peak-power applications including in biomedicine and materials processing. However, for these applications, single-pulse energies will need to be significantly improved beyond the fJ level characteristic of sources today. Here we describe and demonstrate a simple approach for increasing the pulse energy in anomalous dispersion Kerr microresonators. Through scaling laws based on a mean-field cavity model and supported by experimentally-accurate numerical simulations, we show that pulse energy scales strongly with output coupling if supported by sufficient drive power. In strongly over-coupled cavities, femtosecond pulses can be stabilized with pulse energy beyond the pJ level. With this theoretical framework, by pumping a 12 GHz Si3N4 cavity with 30% output coupling with 2.6-ps time-lens generated pulses, we observe stable 74-fs pulses with a record output pulse energy of 6 pJ. High energy Kerr resonators are anticipated to improve performance for current applications and compliment mode locked lasers for high peak power applications.
