Simultaneous Optimization of Hybrid Fiber Amplifiers and Dispersion Maps

Multi-span optical systems using Hybrid Fiber Amplifiers are optimized for the lowest BER under dispersion management for a 2000 Km link operating at 42.7 Gbit/s. The best span configuration including optimum Raman/Erbium gain balance and ideal dispersion compensation degree is found. It is shown that hybrid amplifier configurations behave better than EDFA-only and Raman-only systems, accumulating less noise and nonlinearities.