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Analysis of highly birefringent microfibers devices with FV-FDBPM

A novel class of polarization converters (PCs) in highly birefringent (Hi-Bi) microfibers is proposed and investigated numerically by use of the coded full vectorial finite difference beam propagation method. The PCs could be implemented by inducing periodic deformations along the surface of a Hi-Bi microfiber. Simulation shows that complete conversion between two linearly polarized eigen modes may be achieved with a device as short as 150 μm.