Modal discriminating and linearly polarized fiber lasers

   
   

A single core 35, 50 or a plurality of cores arranged in rings 21, 28, 29 around a central core 20, 27, or in an array 42, are provided with either or both of (a) a modal discrimination characteristic, including gain, index of refraction and cross sectional area, which is greatest in the center of the core or the array, and lowers outwardly therefrom, and (b) an oblong cross section, thereby to provide either or both of (c) a bright laser beam of the fundamental in-phase supermode, and/or (d) a linearly polarized output beam.

Una sola base 35, 50 o una pluralidad de corazones arregló en los anillos 21, 28, 29 alrededor de una base central 20, 27, o en un arsenal 42, se proporciona cualquier o ambos (a) una característica modal de la discriminación, incluyendo aumento, índice de refracción y el área representativa, que es la más grande del centro de la base o del arsenal, y baja exterior therefrom, y (b) sección transversal oblonga, de tal modo para proporcionar cualquier o ambos (c) un rayo laser brillante del supermode en fase fundamental, y/o (d) viga linear polarizada de la salida.

 
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