Slow and Superluminal Light Pulses Via EIT in a 20-m Acetylene-Filled Photonic Microcell
Slow and Superluminal Light Pulses Via EIT in a 20-m Acetylene-Filled Photonic Microcell
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在 20 米乙炔填充光子微电池中通过 EIT 发出慢速超光速光脉冲
DOI：
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发表时间：
2010
影响因子：
4.7
通讯作者：
F. Benabid
中科院分区：
文献类型：
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作者：
N. Wheeler;P. Light;F. Couny;F. Benabid
我们已经开发了一种全光纤系统，我们在一个20米的乙炔填充光子微电池中产生电磁诱导的透明度。利用该系统，探测光脉冲分别被延迟5 ns和提前1 ns。延迟/提前可通过探头失谐和耦合拉比频率进行调节。通过对实验参数如乙炔压力、耦合激光功率和退相干率的优化，可以实现7 ns/m的脉冲延时。讨论了共振群速度色散和频谱重塑对光纤长度的限制。除了光缓冲外，我们还提出了一种基于慢光的光纤陀螺仪，其信噪比提高到~92。
We have developed an all-fiber system where we generate electromagnetically induced transparencies in a 20-m acetylene-filled photonic microcell. Using this system, pulses of probe light were delayed and advanced by up to 5 and 1 ns, respectively. The delay/advance is tunable through the probe detuning and the coupling Rabi frequency. Through optimization of experimental parameters such as acetylene pressure, coupling laser power and decoherence rates it is shown that a pulse delay of 7 ns/m is possible. Limitations imposed on the fiber length by resonance group velocity dispersion and spectral reshaping are also discussed. In addition to optical buffering, we suggest a slow-light-based fiber optical gyroscope with an enhanced SNR of ~92.