Coillet Aurélien, Chembo Yanne K
Optics Department, FEMTO-ST Institute [CNRS UMR6174], 16 Route de Gray, 25030 Besançon cedex, France.
Chaos. 2014 Mar;24(1):013113. doi: 10.1063/1.4863298.
We investigate the various routes to spatiotemporal chaos in Kerr optical frequency combs, obtained through pumping an ultra-high Q-factor whispering-gallery mode resonator with a continuous-wave laser. The Lugiato-Lefever model is used to build bifurcation diagrams with regards to the parameters that are externally controllable, namely, the frequency and the power of the pumping laser. We show that the spatiotemporal chaos emerging from Turing patterns and solitons display distinctive dynamical features. Experimental spectra of chaotic Kerr combs are also presented for both cases, in excellent agreement with theoretical spectra.
我们研究了克尔光学频率梳中通向时空混沌的各种途径，这些途径是通过用连续波激光泵浦超高品质因数回音壁模式谐振器获得的。利用卢吉阿托 - 莱费弗模型，针对外部可控参数，即泵浦激光的频率和功率，构建了分岔图。我们表明，从图灵模式和孤子中出现的时空混沌表现出独特的动力学特征。还给出了这两种情况下混沌克尔频率梳的实验光谱，与理论光谱非常吻合。
