论文标题
XPM诱导阴性热效应的微孔子中的孤子动力学
Soliton dynamics in microresonators with XPM induced negative thermo-optic effect
论文作者
论文摘要
在过去的十年中，微孔子中的光频率梳子产生引起了极大的关注，因为它为芯片尺度的光学频率合成，光学时钟和精确的光谱光谱学提供了有希望的潜力。然而，已知进入时间耗散的Kerr Soliton（DKSS）受到热效应的严重阻碍。此外，由于孤子存在的堕落范围在孤子数方面，确定性地访问单孤子状态是另一个挑战。在这里，我们通过辅助激光抽水方案在ALN-SAPPHIRE平台中展示了稳定且确定性的单孤子生成，而无需快速控制泵功率和失调。此外，我们揭示了在双泵的微型炸弹中孤子切换的基本物理，该物理是由Lugiato -Lefever方程完全描述的。切换过程归因于跨相调制（XPM）诱导的孤子存在范围的退化升高，对应于有效的负热热效应。
Optical frequency comb generation in microresonators has attracted significant attention over the past decade, as it offers the promising potential for chip-scale optical frequency synthesis, optical clocks and precise optical spectroscopy. However, accessing temporal dissipative Kerr soliton (DKSs) is known to be severely hampered by thermal effects. Furthermore, due to the degeneracy of soliton existence range with respect to soliton number, deterministically accessing single soliton state is another challenge. Here, we demonstrate stable and deterministic single soliton generation in AlN-on-sapphire platform via auxiliary laser pumping scheme without the requirement of fast control of the pump power and detuning. Moreover, we reveal the underlying physics of soliton switching in a dual-pumped microcomb, which is fully described by the Lugiato - Lefever equation. The switching process is attributed to cross-phase modulation (XPM) induced degeneracy lifting of the soliton existence range, corresponding to an effective negative thermo-optic effect.
