Institut d’Électronique Fondamentale, Université Paris-Sud 11, CNRS UMR 8622, Orsay, France.
Opt Lett. 2012 Sep 1;37(17):3660-2. doi: 10.1364/OL.37.003660.
A flexible design of slot photonic crystal waveguide with a wide comb is investigated. Introduction of a carefully designed comb within the photonic crystal waveguide allows an accurate dispersion engineering in order to achieve slow light and increase the optical confinement within the comb. The strong light confinement results in an extremely small nonlinear effective area around 0.015 μm2. We report experimental realization of a comb photonic crystal waveguide with measured group indices higher than 100 in a Mach-Zehnder interferometer configuration and extract losses limited to 3.7 dB for a 100 μm device at n(g)=37.
我们研究了一种具有宽梳齿的槽型光子晶体波导的灵活设计。在光子晶体波导中引入精心设计的梳齿，可以进行精确的色散工程，从而实现慢光并增加梳齿内的光限制。强光限制导致非线性有效面积极小，约为 0.015 μm2。我们在马赫-曾德尔干涉仪结构中实现了一个梳状光子晶体波导，其群折射率高于 100，并在 n(g)=37 时从 100 μm 器件中提取损耗限制在 3.7 dB 以内。
