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光纤延迟线编解码器作为光码分多址系统时域编解码的基本器件 ,它起的作用是对光脉冲进行延时编码 ,同时也会给系统带来别的问题。例如 :功率分离 ,延时损耗 ,温度抖动等。本文介绍了编解码器的设计 ,同时对以上问题进行了分析 ,得出的结论包括 :设计时必须考虑温度的影响 ,系统的损耗随着码重和用户数的增加而增加。这些可以对系统的设计提供一个参考。
Optical fiber delay line codec as optical code division multiple access system time-domain codec basic device, which plays the role of the optical pulse delay encoding, but also bring other problems to the system. For example: power separation, delay loss, temperature jitter and so on. In this paper, the design of codec is introduced and the above problems are analyzed. The conclusions are as follows: the design must consider the influence of temperature, and the system loss increases with the increase of code weight and number of users. These can provide a reference to the design of the system.