中国科技论文在线

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2005年06月16日

徐安士，吴德明，朱立新，王子宇，张肇仪，生力伟，龙柯，汤烁，史美琪，王楚，谢麟振

，-0001，（）：

-1年11月30日

两套供工程使用的4×2.5Gbit/s、154km无中继波分复用光纤通信系统第一次在国内研制成功。该系统采用了波长控制器和波长转发器。系统可长期稳定工作并可接入任何厂家任何机型的2.5Gbit/s光端机。经过广东省邮电管理局组织的严格测试，二系统共8信道均24小时无误码。并通过了由国家经贸委、电子工业部委托国家教委组织的专家鉴定。

光纤通信，波分复用，波长控制器，波长转发器，现场试验

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2005年06月16日

【期刊论文】Quantum Memory for Photonic Packets

徐安士， Shuguang Zhu and Anshi Xu， Hong Guo， Yu Zhang， Feng Xiao and Xuzong Chen， Hong Jin Kongy

Journal of the Korean Physical Society, 43 (6) 2003, 1015～1019，-0001，（）：

-1年11月30日

摘要

Numerical simulations of the trapping and the retrieval processes of three different types of single-pulse photonic packets in a medium with electromagnetically induced transparency (EIT) are performed, and the simulation results for a single-Gaussian-pulse photonic packet correspond to the results of a recent well-known experiment. According to the simulation results, in spite of the fact that all three types of photonic packets, in general, experience a shape-preserving storage process, the single-Gaussian-pulse photonic packet suffers the least distortion. Also, based on our numerical simulation, we present, for the rst time to the best of our knowledge, a shape-and quantum-state-preserving propagation of a multiple-Gaussian-pulse photonic packet in a medium with EIT. According to the simulations, attainment of a quantum random access memory (RAM) for photonic packets is within the bounds of possibility.

Electromagnetic induced transparency， Quantum information， Light storage， Dark state polariton

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2005年06月16日

【期刊论文】Reversible storage of multiple light pulses in the EIT atomic medium

徐安士， Shuguang Zhu， Anshi Xu， Yu Zhang， Hong Guo， Xuzong Chen and Deming Wu

CHINESE OPTICS LETTERS, 1 (11) 2003, 680-682，-0001，（）：

-1年11月30日

摘要

In this paper, we first present a full numerical simulation for the trapping and retrieval procedure of eight continuing "1" Guassian pulses (i.e., "11111111") in the electromagnetically induced transparency (EIT) medium. This simulation shows that an EIT medium has the ability to store multiple light pulses in a shape-preserving way. And we also, for the first time, give the formula evaluating the maximum number of pulses that can be stored by an EIT medium at one time. This work reveals a new possible way to the reversible storage of the photonic information.