超高速光纤通信数据采集系统

Data Acquisition System of Ultra-High Speed Optical Communication

以10 Gb/s速率为例,介绍了超高速光纤通信信号接入系统的设计和实现。本文分别从总体设计、硬件实现及软件实现三个方面进行描述,并着重介绍了系统重点环节信号的接收和外接存储体设计,其中接收部分主要由光电转换模块与FPGA(Field programmable gate array)完成,外接存储体主要由DDR SDRAM构成。最后给出了光数据采集系统的测试方法和实验结果,结果证明系统完全可以实现10 Gb/s速率以下的光数据接入采集。

Taking the speed of 10 Gbps as an example, the design and the implementation of the data acquisition system of ultrahigh speed optical communication are introduced. The whole design of the system, the implementation of the hardware and software are described. The im- portant signal port and the memory cache of the system are presented. The part of received signals is achieved by the optical-to-electric module and FPGA. And the design of the external memory is made up of DDR SDRAM. Finally, the testing method and the experimenal result of the optical data acquisition system are given. Results shows that the optical data at the speed of 10 Gb/s can be accessed by the system.