Effectiveness of receiver-side compensation against FBG dispersion-induced SNR degradation in long-haul WDM optical networks

In long-distance WDM optical networks, the performance degradation is very strong due to fibre Bragg grating (FBG) dispersion and fiber nonlinearity, and depends on where the FBGs are inserted. A countermeasure against the FBG dispersion-induced performance degradation is dispersion compensation at the optical receiver. This paper numerically and experimentally investigates the effectiveness of receiver-side compensation against FBG dispersion-induced performance degradation.