We performed numerical analysis of the propagation characteristics of transversely disordered optical fibers with random hexagonal As2Se3 and AsSe2 rods for infrared light in the wavelength of 1-10 μm using beam propagation method and finite element method. Local confinement by random refractive index distribution was observed in both methods. It was revealed that the beam diameter is minimal around a hexagonal rod pitch of 0.8 times of the wavelength.
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