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Improved large-mode area endlessly single-mode photonic crystal fibers

N. A. Mortensen·M. D. Nielsen·J. R. Folkenberg·A. Petersson·H. R. Simonsen
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Abstract

We numerically study the possibilities for improved large-mode area endlessly single mode photonic crystal fibers for use in high-power delivery applications. By carefully choosing the optimal hole diameter we find that a triangular core formed by three missing neighboring air holes considerably improves the mode area and loss properties compared to the case with a core formed by one missing air hole. In a realized fiber we demonstrate an enhancement of the mode area by ~30 % without a corresponding increase in the attenuation.

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N. A. Mortensen, M. D. Nielsen, J. R. Folkenberg, A. Petersson, H. R. Simonsen. 2002-11-12. Improved large-mode area endlessly single-mode photonic crystal fibers. https://doi.org/10.1364/ol.28.000393

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