论文标题
光纤中的长时间存储时间
Long Light Storage Time in an Optical Fiber
论文作者
论文摘要
光纤中的光存储是量子光学延迟线技术中的一个有吸引力的组件。尽管二氧化硅核光纤在传输宽带光学信号方面表现出色，但调整其分散属性以减慢轻脉冲或将其存储在二氧化硅核中长时间延迟时间是一项挑战。将色散和相干培养基与光纤耦合有望在支撑长光延迟方面。在这里，我们将冷的RB原子蒸气加载到空心核光子晶体纤维内的光学陷阱中，并将光的相位存储在原子形成的长寿命自旋波中，并在使用电磁诱导的透明度（EIT）的完全可控制的延迟时间后检索。我们达到了超过50毫秒的存储时间，结果等于光纤中传播损失的8.7x10^-5 db s^-1。我们的演示可用于缓冲和调节远程网络之间的经典和量子信息流。
Light storage in an optical fiber is an attractive component in quantum optical delay line technologies. Although silica-core optical fibers are excellent in transmitting broadband optical signals, it is challenging to tailor their dispersive property to slow down a light pulse or store it in the silica-core for a long delay time. Coupling a dispersive and coherent medium with an optical fiber is promising in supporting long optical delay. Here, we load cold Rb atomic vapor into an optical trap inside a hollow-core photonic crystal fiber, and store the phase of the light in a long-lived spin-wave formed by atoms and retrieve it after a fully controllable delay time using electromagnetically-induced-transparency (EIT). We achieve over 50 ms of storage time and the result is equivalent to 8.7x10^-5 dB s^-1 of propagation loss in an optical fiber. Our demonstration could be used for buffering and regulating classical and quantum information flow between remote networks.
