Fast light in silicon ring resonator with resonance-splitting.
Fast light in silicon ring resonator with resonance-splitting.
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DOI：
10.1364/oe.17.000933
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发表时间：
2009-01
期刊：
影响因子：
3.8
通讯作者：
Qiang Li;Ziyang Zhang;Jing Wang;M. Qiu;Yikai Su
中科院分区：
文献类型：
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作者：
Qiang Li;Ziyang Zhang;Jing Wang;M. Qiu;Yikai Su
我们报道了在具有共振分裂的过耦合超紧凑硅环形谐振腔中的快光实验。环形腔内部光栅的强互耦合导致了共振分裂和较大的反常色散，从而为在环形腔过耦合区实现快光提供了一种新的途径。在实验中，最大脉冲提前130 ps的低失真实现了1纳秒的信号脉冲在10微米半径的硅环形谐振器。观测到的脉冲超前与基于耦合模理论的理论计算结果吻合较好。
We report experimental demonstration of fast light in an over-coupled ultra-compact silicon ring resonator with resonance-splitting. Strong mutual-coupling induced by the grating inside the ring leads to split resonances and accompanying large anomalous dispersion, thus providing a new approach to realizing fast light in the over-coupled region of the ring resonator. In the experiment, a maximum pulse advancement of 130 ps with low distortion is achieved for a 1-ns signal pulse in a 10-mum-radius silicon ring resonator. The observed pulse advancement agrees well with the theoretical calculation based on coupled mode theory.