光纤光栅及电色散补偿技术在光纤通信中的应用

Application of optical fiber grating and electricity dispersion compensation technology in optical fiber communication

制约光纤通信最关键的因素是光纤的色散和非线性效应,采用光域和电域相结合的补偿技术,即在传输链路中采用光纤光栅补偿技术,在接收端采用电色散补偿技术,成功补偿了10 GB/s NRZ信号系统中1 270 kmG.652光纤的色散.在入纤光功率较高的情况下,光电补偿系统抵抗非线性作用的能力明显优于全光补偿系统,同时能保持较高的系统Q值,有利于实现对现有光纤通信系统的升级和扩容.

The key factor that restricts optical fiber communication is optical fiber dispersion and nonlinearity effect. A compensation technology was used to successfully compensate 1270km G. 652 fiber dispersion in the 10GB/s NRZ signal system. It combined optical domain and electrical domain, namely, applying optical fiber grating compensation in the transmission link and electric dispersion compensation at the receiving end. When the feeding fiber optical power is higher, the anti - nonlinear action ability of the photoelectric compensation system is obvi- ously better than that of the light compensation system. At the same time, the system can keep a high Q value, which is helpful to upgrade and expand the existing optical fiber communication system.