Research of Femtosecond Pulse Optical Information Processing System

本课题的研究目标是开发一种飞秒脉冲光信息处理系统。网络化社会对多媒体信息日益增长的需求，要求光纤通信系统具有超高传输容量和超高速交换系统。为了实现这种超快的信息处理，需要开发一种处理速度至少超过Tbps的超快光信息处理系统。为此，我们提出了利用超快脉冲激光在图像信号和时间序列信号之间进行二维空-时-二维空间转换的新型光学超快技术。利用该技术，我们构建了飞秒脉冲光信息处理系统，并演示了光学二维空间到时间到二维空间的转换系统。实验验证表明，该技术与现有的超快光纤通信系统兼容。为了验证所构建系统的能力，我们实现了字符图像的传输和变换。从研究结果中，我们可以获得重要的知识，有了这些知识，我们所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 femtosecond pulse optical information processing system. Increasing demands for multimedia information in a networked society requires an optical fiber communication system with ultra-high transmission capacity and ultrafast switching system. To realize such an ultrafast information processing, it is necessary to develop an ultra fast optical information processing system whose processing speed is over Tbps, at least.For this purpose, we have proposed the novel optical ultrafast two-dimensional space-to-time-to-two-dimensional space conversion technique 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 the optical 2D-space-to-time-to-2D-space conversion system. As a result of experimental verification, we confirmed that the proposed : technique is compatible with the current ultrafast optical fiber communication system. To demonstrate the capability of the constructed system, we implemented the character image transmission and transform.From the results of this research, we can obtain the important knowledge, with which the proposed technique would become an ultra fast optical information processing system in the next generation of networked society.