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迄今光通信用的器件随着中继线系统的大容量化和长距离化而发展起来.目前,正向光用户系统普及.按照传输中的各种方式和其要求正在积极研究开发有关光器件,为了进一步促进用户系统光控,光器件的经济性将作为一个重要课题.下面就用户系统作以展望,用户系统与中继线系统相比光学器件级别不同,因此低价格成为关键,它并没有涉及到提高性能为主的中继线路器件技术和制造方法,主要取
So far, devices for optical communication have been developed with the increasing capacity and long distance of trunk systems, and are currently being popularized by users of optical systems in positive light. Various optical devices are being actively researched and developed in accordance with various manners of transmission and their requirements. To further promote the user system light control, the economy of optical devices will be an important issue.Following the following on the user system to look forward, the user system and trunk systems compared to different levels of optical devices, so the low price has become the key, it did not involve to improve Performance-based trunk line device technology and manufacturing methods, the main take