Optical multi-stability in a nonlinear high-order microring resonator filter
Optical multi-stability in a nonlinear high-order microring resonator filter
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DOI：
10.1063/5.0002941
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发表时间：
2020-05
期刊：
影响因子：
5.6
通讯作者：
Li Jin;L. Di Lauro;A. Pasquazi;M. Peccianti;D. Moss;R. Morandotti;B. Little;S. Chu
中科院分区：
文献类型：
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作者：
Li Jin;L. Di Lauro;A. Pasquazi;M. Peccianti;D. Moss;R. Morandotti;B. Little;S. Chu
本文从理论上分析和实验上证明了基于高折射率反差掺硅玻璃的集成非线性高阶微环谐振器滤波器的光学双稳定性和多稳定性。我们使用一个考虑克尔效应和热效应的非线性模型来分析基于耦合谐振器的滤波器的不稳定性。该模型还准确地预测了输入频率轻微失谐时滤波器的多稳态行为。为了理解腔内功率分布的作用，我们用泵浦探针实验研究了滤光片各环与光响应的失谐。这种测量是用低功率探针束扫描滤波器，将其调谐到远离泵浦耦合共振的几个自由光谱范围。全面了解高阶微环谐振器滤波器的非线性特性与腔内功率分布之间的关系，将有助于未来使用这种滤波器的全光开关系统的设计和实现。
We theoretically analyze and experimentally demonstrate optical bi-stability and multi-stability in an integrated nonlinear high-order microring resonator filter based on high-index contrast doped silica glass. We use a nonlinear model accounting for both the Kerr and thermal effects to analyze the instability behavior of the coupled-resonator based filter. The model also accurately predicts the multi-stable behavior of the filter when the input frequency is slightly detuned. To understand the role of the intracavity power distribution, we investigate the detuning of the individual rings of the filter from the optical response with a pump–probe experiment. Such a measurement is performed scanning the filter with a low-power probe beam tuned a few free spectral ranges away from the resonance where the pump is coupled. A comprehensive understanding of the relationship between the nonlinear behavior and the intracavity power distribution for the high-order microring resonator filter will help the design and implementation of future all-optical switching systems using this type of filter.