Abstract

In this paper, we report on the near-field distribution of multi-core photonic crystal fiber lasers. The supermodes of photonic crystal fibers with foursquarely and circularly distributed multi-cores are observed. The supermode properties are investigated by using full-vector finite-element method (FEM). The mode operations of our 16-core foursquare-array and 18-core circular-array photonic crystal fiber lasers are simulated by the COMSOL Multiphysics software. The near-field distribution patterns of in-phase supermode are presented.

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