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Proof of principle experiment on minimizing propagation time in optical communications

机译：光通信中传播时间最小化的原理实验

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摘要

We present an experimental realization of slow and fast light schemes for a few ns long optical pulses that makes use of incoherent interactions in an atomic medium. The combination of such different schemes allows us to demonstrate that the propagation delay acquired in the slow light stage, can be completely recovered in a fast light one. The use of an incoherent interactions scheme makes the control of the propagation dynamics of light pulses easer to realize. Delays up to 13 ns, in slow light regime, and advances up to 500 ps, in fast light regime, are reported when the stages work individually for a 3 ns long pulse. When both stages are switched-on the fast light stage is able to recover a previously induced delay and even to produce an extra advance, with an overall advance up to 1 ns. Since every optical transmission line needs an amplification system to overcome the unavoidable losses, the results suggest the opportunity and perspective of a proper tailoring of the amplification stage for data timing purposes.
机译：我们介绍了几ns长的光脉冲的慢速和快光方案的实验实现，该方案利用了原子介质中的非相干相互作用。这些不同方案的组合使我们能够证明，在慢光阶段获得的传播延迟可以在快光阶段完全恢复。非相干相互作用方案的使用使得易于实现对光脉冲的传播动力学的控制。当阶段分别工作3 ns长的脉冲时，据报道在慢光状态下延迟高达13 ns，在快光状态下延迟高达500 ps。当两个级都接通时，快速照明级能够恢复先前引起的延迟，甚至产生额外的超前，总超前可达1 ns。由于每条光传输线都需要一个放大系统来克服不可避免的损失，因此，结果提示了适当调整放大级以进行数据定时的机会和前景。

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