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Formation of sharply peaked sidelobes in large aperture single-pass semiconductor laser amplifiers

Formation of sharply peaked sidelobes in large aperture single-pass semiconductor laser amplifiers

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Single-pass semiconductor laser amplifiers are shown theoretically to exhibit sharply peaked lobes (‘bat ears’) at the edges of the near-field output. We discuss the mechanism for their formation and show that it is qualitatively different from spontaneous filamentation in homogeneous media.

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