基于光电集成芯片的塑料光纤通信系统研究

Research of plastic optical fiber communication system based on opto-electronic integrated chips

为提高塑料光纤(POF)通信系统的输出光功率及信号完整性,对包括光发射机、POF、光接收机以及相关的耦合透镜的POF通信系统进行设计,光收发芯片均为自主研发的硅基光电集成芯片。首先,从理论上对整个通信系统的光路进行了设计;其次,采用TracePro软件对系统光路过程进行了模拟和分析,优化设计了系统及封装参数;最后,对系统光功率和眼图进行了测试。结果表明,采用设计的光路和透镜参数,可以将耦合进POF的光功率提高大约5.5μW;获得了在125 Mbps输入速率下的眼图,眼图线迹清晰,噪声较小,测试结果满足百兆速率的通信要求。

Plastic optical fiber （POF） communication system including optical transmitter, POE optical receiver and rele- vant coupling lens, is designed to improve its output light power and signal integrity. Independent research and development opti- cal transmitter and receiver based on silicon are adopted. Firstly, the light path of communication system is designed in theory. Secondly, the light propagation path is analyzed and simulated by using the software TracePro, the parameters of system and packaging are optimally designed. Finally, measurements indicate that the light power coupled into POF is increased by about 5.5 μW using the designed parameters, and the eye-diagram of receiver with data rate of 125 Mbps is obtained, the line of eye-diagram is clear, the noise of system is low. The test results can satisfy the demands of 100 Mbps rate communication.