Optimization of multi-wavelength Brillouin-Raman fiber laser in NALM design by employment genetic algorithm

This paper aims to optimize multi-wavelength Brillouin-Raman fiber laser (MBRFL) utilizing nonlinear amplifying loop mirror (NALM) design through employment a simple genetic algorithm. This is carried out in order to evaluate large degree of freedom of parameters through transmitted power as a fitness function that can be exploited to optimize the behavior of the NALM without repeating experiment. The genetic algorithm is intelligent enough that can support different parameters to achieve maximum transmitted power of 35 mW. This is attained when the optimized parameters including 5 km of dispersing compensating fiber length with Raman pump power of 600 mW and attenuator value of −30 dB are incorporated.