论文部分内容阅读
一、引言信息(语言、文学、图象、符号)的传递在人类生活中是普遍存在的。用光传递信息已有悠久的历史。在激光出现之前,光传递信息技术之所以发展缓慢,其主要原因是没有解决光源问题。热幅射光源成份复杂,调制困难,不宜控制。自从1960年激光问世以后,
I. Introduction The transmission of information (language, literature, images, symbols) is ubiquitous in human life. There is a long history of using light to transmit information. Prior to the advent of lasers, the main reason why light-delivery information technology developed slowly was the lack of solution to the light source problem. Heat radiation source composition is complex, modulation is difficult and should not be controlled. Since the laser came out in 1960,