Is hollow-core fiber a polarization-maintaining fiber
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Polarization maintaining (PM) hollow-core fiber (HCFs) is a strong contender to conventional PM solid-core fiber since its air core could mitigate many intrinsic problems of solid material, e. high dispersion, high nonlinearity, low laser induced damage threshold and high thermal. Here, we report the first experimental realization of a low-loss, polarization filtering antiresonant hollow-core fiber (AR-HCF). To simultaneously optimize two inherently conflicting performance metrics, namely, birefringence and confinement loss, a multi objective genetic algorithm is.