Fano resonance control in a photonic crystal structure and its application to ultrafast switching
Fano resonance control in a photonic crystal structure and its application to ultrafast switching
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DOI：
10.1063/1.4893451
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发表时间：
2014-08-11
影响因子：
4
通讯作者：
Mork, Jesper
中科院分区：
文献类型：
--
作者：
Yu, Yi;Heuck, Mikkel;Mork, Jesper
我们在实验上演示了一种光子晶体结构，它允许轻松而稳健地控制Fano光谱。它的运行依赖于控制沿着获得Fano共振的结构中的一条光路传播的光的幅度。短脉冲动态测量表明，除了显著提高开关对比度外，传输动力学本身也受到谐振性质的强烈影响。因此，由于非线性Fano传递函数的重塑效应，可以使用Fano谐振来减小由长载流子寿命所隐含的慢恢复尾部的影响。作为例子，我们给出了一种FANO结构的系统应用，并通过实验实现了光控功率小于1 mW的10Gbit/S全光调制，展示了其优越性。(C)2014 AIP出版有限责任公司。
We experimentally demonstrate a photonic crystal structure that allows easy and robust control of the Fano spectrum. Its operation relies on controlling the amplitude of light propagating along one of the light paths in the structure from which the Fano resonance is obtained. Short-pulse dynamic measurements show that besides drastically increasing the switching contrast, the transmission dynamics itself is strongly affected by the nature of the resonance. The influence of slow-recovery tails implied by a long carrier lifetime can thus be reduced using a Fano resonance due to a hitherto unrecognized reshaping effect of the nonlinear Fano transfer function. As an example, we present a system application of a Fano structure, demonstrating its advantages by the experimental realization of 10 Gbit/s all-optical modulation with optical control power less than 1 mW. (C) 2014 AIP Publishing LLC.