Deterministic access of broadband frequency combs in microresonators using cnoidal waves in the soliton crystal limit
Deterministic access of broadband frequency combs in microresonators using cnoidal waves in the soliton crystal limit
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DOI：
10.1364/oe.405655
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发表时间：
2020-11-23
期刊：
影响因子：
3.8
通讯作者：
Menyuk, Curtis R.
中科院分区：
文献类型：
--
作者：
Qi, Zhen;Leshem, Amir;Menyuk, Curtis R.
我们提出了一种方法，以确定性地获得宽带频率梳微谐振器。这些宽带频率梳对应于椭圆余弦波的极限时，他们可以被认为是孤子晶体或单孤子。该方法依赖于通过（频率失谐）x（泵浦幅度）参数空间的平移，同时避免混沌状态。我们详细考虑Si3N4微谐振器与小或中等尺寸和SiO2微谐振器与大尺寸，对应于以前的实验工作。我们还讨论了热效应对椭圆余弦波稳定区域的影响。它们的主要效果是增加所有稳定区域的失谐，但它们也使稳定区域偏斜，因为较高的泵浦功率对应于较高的功率，因此增加了温度和失谐。单孤子的失谐量的变化比孤子晶体的小。在没有温度影响的情况下，单孤子和孤子晶体的稳定区几乎完全重叠。当考虑热效应时，单孤子的稳定区域与孤子晶体的稳定区域分离，部分解释了后向失谐对获得单孤子的有效性。(C)根据OSA开放获取出版协议的条款，2020年美国光学学会
We present a method to deterministically obtain broad bandwidth frequency combs in microresonators. These broadband frequency combs correspond to cnoidal waves in the limit when they can be considered soliton crystals or single solitons. The method relies on moving adiabatically through the (frequency detuning)x(pump amplitude) parameter space, while avoiding the chaotic regime. We consider in detail Si3N4 microresonators with small or intermediate dimensions and an SiO2 microresonator with large dimensions, corresponding to prior experimental work. We also discuss the impact of thermal effects on the stable regions for the cnoidal waves. Their principal effect is to increase the detuning for all the stable regions, but they also skew the stable regions, since higher pump power corresponds to higher power and hence increased temperature and detuning. The change in the detuning is smaller for single solitons than it is for soliton crystals. Without temperature effects, the stable regions for single solitons and soliton crystals almost completely overlap. When thermal effects are included, the stable region for single solitons separates from the stable regions for the soliton crystals, explaining in part the effectiveness of backwards-detuning to obtaining single solitons. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement