Dynamics of fast and slow pulse propagation through a microsphere-optical-fiber system.
Dynamics of fast and slow pulse propagation through a microsphere-optical-fiber system.
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DOI：
10.1103/physreve.75.016610
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发表时间：
2007-01
期刊：
影响因子：
--
通讯作者：
K. Totsuka;M. Tomita
中科院分区：
文献类型：
--
作者：
K. Totsuka;M. Tomita
我们在时间域中讨论了光脉冲通过耦合到超高Q微球系统的光纤锥传输时的快光和慢光产生的机制。快光和慢光被解释为穿过光纤的弹道光和球体内的循环光之间的干涉效应。该模型预测的冲击效应之一是在临界耦合条件下传输脉冲中的动态脉冲分裂，其中球与光纤之间的耦合强度等于球内的往返损耗。通过实验实现这一临界耦合条件，我们观察到了这种动态脉冲分裂效应。
We discuss the mechanism of fast and slow light generation when optical pulses propagate through a fiber taper coupled to an ultrahigh-Q microsphere system in the time domain. Fast and slow light are explained as interference effects between ballistic light through the fiber and circulated light within the sphere. One of the striking effects predicted by this model is dynamic pulse splitting in the transmitted pulse at the critical coupling condition, where the coupling strength between the sphere and fiber equals the round-trip loss in the sphere. By realizing this critical coupling condition experimentally, we observed this dynamic pulse splitting effect.