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Analysis of a Fiber Laser with Two Nonlinear Amplifying-Loop Mirrors
Authors:R GOMEZ  A DENGRA  F J FRAILE-PELAEZ
Institution:1. Escuela Politecnica, Universidad de Extremadura, Spain;2. Departamento de Fisica, Universidad de Cordoba, Spain;3. Departamento de Teoria de Senal y Comunicaciones, Universidad de Vigo, Spain
Abstract:We present the results of the analysis of a fiber laser containing two nonlinear amplifying-loop mirrors (NALM). With the theoretical analysis we have developed, we were able to extend the analysis of a figure of eight laser (F8L) to the case of a similar structure with two NALM. Using the split-step Fourier method we have determined the influence of each NALM coupling ratio on the performance of the laser. We obtain a reduction in the fiber amplifier gain needed to initiate the oscillation as a consequence of this new configuration. Results also show that an optimum combination of the two NALMs' parameters is possible for given optical power and width of the generated pulses.
Keywords:fiber laser  non-linear optics  solitons
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