Optimal design of dual-pump fibre-optical parametric amplifiers with dispersion fluctuations based on hybrid genetic algorithm

摘要

Solutions of dual-pump fibre-optical parametric amplifiers (DP-FOPAs) with dispersion fluctuations are derived by using a matrix operator. Based on these solutions and a hybrid genetic algorithm, we have optimized three-section DP-FOPAs to increase the signal band and improve the gain uniformity. The optimizations demonstrate that when dispersion fluctuations are taken into account, the 44-nm signal band with the 0.37-dB ripple and over 14.8-dB gain can be obtained from the three-section DP-FOPA, instead of the lowest gain of similar to 13dB with the ripple of more than 15 dB from the single-section DP-FOPA.