Cazier Nicolas, Checoury Xavier, Haret Laurent-Daniel, Boucaud Philippe
Institut d’Electronique Fondamentale, Université Paris Sud, CNRS UMR 8622, Orsay, France.
Opt Express. 2013 Jun 3;21(11):13626-38. doi: 10.1364/OE.21.013626.
We show that self-induced oscillations at frequencies above GHz and with a high spectral purity can be obtained in a silicon photonic crystal nanocavity under optical pumping. This self-pulsing results from the interplay between the nonlinear response of the cavity and the photon cavity lifetime. We provide a model to analyze the mechanisms governing the onset of self-pulsing, the amplitudes of both fundamental and harmonic oscillations and their dependences versus input power and oscillation frequency. Theoretically, oscillations at frequencies higher than 50 GHz could be achieved in this system.
我们表明，在光泵浦下，硅光子晶体纳米腔中可获得频率高于吉赫兹且具有高光谱纯度的自激振荡。这种自脉冲是由腔的非线性响应与光子腔寿命之间的相互作用引起的。我们提供了一个模型来分析控制自脉冲起始、基波和谐波振荡幅度及其与输入功率和振荡频率关系的机制。理论上，该系统中可实现高于50吉赫兹频率的振荡。
