Numerical study of 40Gbit/s optical soliton transmission system employing ail-optically regenerative repeater using properly-designed nonlinear optical loop mirror

摘要

The performance improvement of 40Gbit /s soliton transmission system employing nonlinear optical loop mirror (NOLM) as all-optical regenerative repeater is investigated. The switching characteristic of NOLM is optimized using our design strategies. By inserting the optical repeaterwhere the eye-penalty of the transmitted signal becomes 1dB, we achieve the improvement of 0.3dB eye-penalty resulting in further 480km transmission distance.