Artículos de revistas
Rigorous and optimized few-mode erbium-doped fiber amplifier design by using topology optimization and genetic algorithms
Fecha
2017-04Registro en:
doi: 10.1117/1.OE.56.4.046102
Autor
Herbstera, Adolfo F.
Romero, Murilo Araujo
Institución
Resumen
We develop a rigorous procedure for the optimum design of few-mode erbium (Er)-doped fiber amplifiers,
which is tackled as a multiobjective optimization problem, in an approach based on the combination of the
topology optimization and genetic algorithm techniques. We demonstrated that the usual ring-like doping distributions
are necessarily the best choices only if the pump intensity shows no azimuthal dependence.
Additionally, in general, the optimum doping distribution will be a function of the signal and pump azimuthal
mode numbers. For the particular case of the LP11 pump, we also provide a triple-ring Er-doping profile that
maximizes modal equalization for seven-group modes over the whole C-band, the highest modal count proposed
in the literature so far.