arXiv 2402.081542024-02-13physics.optics

Kerr诱导同步腔孤子中的AC-Josephson效应与子梳锁模

AC-Josephson Effect and Sub-Comb Mode-Locking in a Kerr-Induced Synchronized Cavity Soliton

Gregory Moille, Usman A. Javid, Michal Chojnacky, Pradyoth Shandilya, Curtis Menyuk, Kartik Srinivasan

AI总结：

本文提出了一种交流Kerr诱导同步（AC-KIS）方法，通过参考激光相位调制触发边带实现类似微波驱动Josephson结的Shapiro阶梯同步，并利用四波混频Bragg散射实现子梳锁模，为微谐振器频率梳同步及凝聚态类比研究提供了新途径。

摘要：

Kerr诱导同步（KIS）[1]涉及将注入参考激光捕获耗散Kerr孤子（DKS）微梳[2]梳齿的过程。该锁相行为由Adler方程描述，该方程的类似形式也描述了众多其他物理系统[3]，如Josephson结[4]。我们提出了一种KIS的交流（AC）版本，其行为类似于微波驱动的Josephson结，其中周期性同步以所谓的Shapiro阶梯形式发生。我们在Adler模型、Lugiato-Lefever方程以及来自芯片集成微谐振器系统的实验数据中，展示了AC-KIS动力学预测的一致结果。KIS中的（整数）Shapiro阶梯可以简单地解释为通过参考激光相位调制产生的边带触发了同步。值得注意的是，我们的光学系统允许轻松调节Adler阻尼参数，从而能够进一步观察分数Shapiro阶梯，其中同步发生在驱动微波频率的分数处。在此，我们表明梳齿通过四波混频Bragg散射过程被间接捕获，导致子梳锁模，并通过噪声考量在实验上证明了这一点。我们的工作为在微谐振器频率梳背景下研究同步现象、用DKS合成凝聚态物质态类比物，以及利用分数Shapiro阶梯灵活且可调地访问KIS机制打开了大门。

英文摘要：

Kerr-induced synchronization (KIS) [1] involves the capture of a dissipative Kerr soliton (DKS) microcomb [2] tooth by a reference laser injected into the DKS resonator. This phase-locking behavior is described by an Adler equation whose analogous form describes numerous other physical systems [3], such as Josephson junctions [4]. We present an AC version of KIS whose behavior is similar to microwave-driven Josephson junctions, where periodic synchronization occurs as so-called Shapiro steps. We demonstrate consistent results in the AC-KIS dynamics predicted by the Adler model, Lugiato-Lefever equation, and experimental data from a chip-integrated microresonator system. The (integer) Shapiro steps in KIS can simply be explained as the sideband created through the reference laser phase modulation triggering the synchronization. Notably, our optical system allows for easy tuning of the Adler damping parameter, enabling the further observation of fractional-Shapiro steps, where the synchronization happens at a fraction of the driving microwave frequency. Here, we show that the comb tooth is indirectly captured thanks to a four-wave mixing Bragg-scattering process, leading to sub-comb mode-locking, and we demonstrate this experimentally through noise considerations. Our work opens the door to the study of synchronization phenomena in the context of microresonator frequency combs, synthesis of condensed-matter state analogues with DKSs, and the use of the fractional Shapiro steps for flexible and tunable access to the KIS regime.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

AI总结：

摘要：

英文摘要：

相关论文