Research of Ultrafast Photonic Time-Space Conversion and Transmission

本计画的研究目标是发展一个超快光子时空转换与传输系统。网络化社会对多媒体信息的需求日益增长，要求光纤通信系统具有超高的传输能力和超快的处理系统。由于先进网络中的数据是超高速数据，因此有必要开发处理速度至少超过Tbps的超高速光信息处理系统。为了实现这种超快信息处理，我们提出了一种利用超快脉冲激光实现图像信号和时间序列信号的光学超快二维空间-时间-二维空间转换技术。通过使用所提出的技术，我们构建了一个飞秒脉冲光信息处理系统，并展示了超快分组交换的光路由系统的基本功能。作为实验验证的结果，我们证实了所提出的技术是兼容的，目前的超快光纤通信系统。为了证明所构建的系统的能力，我们实现了超快的头识别，其处理速率超过600 Gbps。从这些研究结果中，我们可以得到重要的知识，提出的技术将成为下一代网络社会的超快速光信息处理系统。

The objective of this project research is a development of a system for a Ultrafast photonic time-Space conversiOn and transmission. Increasing demands for multi-media information in a networked society requires an optical fiber communication system with ultra-high transmission capaqity and ultrafast processing system. Since data in the advanced networks are ultrafast ones, it is necessary to develop an ultra fast optical information processing system whose processing speed is over Tbps, at least. One promissing approach is a paralle processing to realize such an ultrafast information proces slng.For this purpose, we have proposed the novel optical ultrafast two-dimensional space -to- time -to- two-dimensional space conversion techuique among image signals and time sequential ones with an ultra-fast pulse laser. By using the proposed technique, we constructed a femtosecond pulse optical information processing system and demonstrated fundamental functions of the optical routing system for an ultrafast packet switching. As a result of experimental verification, we confirmed that the proposed technique is compatible with the current ultrafast optical fiber cornmunication system. To demonstrate the capability of the constructed system, we implemented the ultrafast header recognition whose processing rate is over 600Gbps. From the results of this research, we can 6btain the important knowledge, with which the proposed technique would become an ultra fast optical infonnation processing sYstem in the next generation of networked society.