Application of dispersion compensator based on chirped fiber gratings in ultra long-hual DWDM system
基于啁啾光纤光栅的色散补偿器在超长距离密集波分复用系统中的应用

An application of chirped fiber grating in an ultra long-hual DWDM system is presented in the paper. The interaction between the chirped fiber gratings at different wavelengths are analyzed for the first time. A method of prolonging the distance between gratings to surpass the coherent length of the light source is proposed to suppress the interaction between the gratings. By using chirped fiber gratings, we realized a transmission system of 8×10Gbit/s signal on G.652 fiber over 1500km.