The design of high-speed optical fiber communication system based on PCI bus

In order to increase the transmission distance and reduce noise effectively, a communication system with the optical fiber interface is developed in this paper. In the system, the PCI bus is adopted as the connection bus between the underlying optical fiber transceiver module circuitry and host computer using the WDM driver. The FPGA is the core logic of the whole system, responsible for data transmission and timing logic control. The module structure and the design method of the PCI bus, the principle and the design of optical interface module and the bottom-driven development are described in this paper. The experiment results show that the system has basically meet requirement targets. It can achieve the maximum transfer rate of 40MBps when running in the DMA mode. With long transmission distance, strong anti-interference and high scalability, this system has stable and reliable performance.