机构地区: 空军工程大学,西安710000
出 处: 《光通信技术》 2017年第8期29-32,共4页
摘 要: 讨论了用于光传输中的带宽可变相干光收发机,给出了其信号处理流程,分析了灵活性对光传输链路噪声和滤波效应的适应性。仿真结果表明,相比于固定符号率的光收发机,同时优化调制格式和符号率的光收发机可进一步提高传输容量。 The bandwidth variable coherent optical transceivers for transport networks are discussed. The sig- nal processing flow is given, and the adaptability of flexibility to optical transmission link noise and filtering effect is analyzed. The simulation results show that compared with a fixed rate optical transceiver, optimizing the modulation format and symbol rate of the optical transceiver can further improve the transmission capacity.