Abstract The results of a study of the nonlinear frequency response of a silicon micro-ring resonator (MRR) manufactured using silicon-on-insulator technology are presented. Appearance of optical bistability caused by the frequency shift of the MRR resonant spectrum under continuous wave pumping is experimentally demonstrated. The experimental results are explained in the framework of an original theory, which accounts for the linear loss, Kerr nonlinearity, two-photon absorption, free-carrier-induced absorption and dispersion, and the thermo-optic effect. It is shown that the bistability of the frequency response originates from competition between frequency shifts of opposite signs that appear due to the presence of the thermo-optic and free-carrier effects, with the latter one being dominant.

中文翻译：

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连续波泵浦下硅微环谐振器中的载流子诱导光学双稳态

摘要 介绍了使用绝缘体上硅技术制造的硅微环谐振器 (MRR) 的非线性频率响应的研究结果。实验证明了在连续波泵浦下由 MRR 谐振频谱的频移引起的光学双稳态的出现。在原始理论的框架内解释了实验结果，该理论解释了线性损耗、克尔非线性、双光子吸收、自由载流子诱导的吸收和色散以及热光效应。结果表明，频率响应的双稳态源于由于热光效应和自由载流子效应的存在而出现的相反符号频移之间的竞争，后者占主导地位。