3 November 2016 Fibre amplifying loop mirror with nonlinearity independent of the intensity of intra-cavity radiation
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Abstract
Among the demerits of standard nonlinear amplifying loop mirrors (NALM), one can single out the dependence of its reflectivity upon the intensity of the intra-cavity. This results in a relatively narrow range of radiation power, within which stable mode-locked operation of a fibre laser with NALM can be achieved. This work reports for the first time that in the process of generation, the NALM reflectivity may be controlled independently of the intra-cavity radiation power by using two different active media with independent pump sources. The newly proposed layout allows stable mode locking within a substantially broader radiation power range and enables achievement of record-high pulse parameters.
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Sergey M. Kobtsev, Sergey V. Smirnov, Alexey V. Ivanenko, "Fibre amplifying loop mirror with nonlinearity independent of the intensity of intra-cavity radiation", Proc. SPIE 10029, Quantum and Nonlinear Optics IV, 100291J (3 November 2016); doi: 10.1117/12.2247757; https://doi.org/10.1117/12.2247757
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