A novel polarization splitter in ZnTe tellurite glass three-core photonic crystal fiber

Abstract: A kind of polarization splitter in ZnTe tellurite glass three-core photonic crystal fiber has been proposed. The polarization splitter is based on the phenomenon of resonant tunneling. We use the finite element method and the full-vector beam propagating method to analyze the characteristics of three-core photonic crystal fiber. Compare with the silica glass three-core PCF, the ZnTe tellurite glass three-core PCF have higher extinction ratios and lower coupling loss, the extinction ratios ERA =−164.2681dB and ERC =−37.1742dB at the wavelength λ =1.55 μm, and the coupling loss is lower than 0.02dB. The 8.7983-mm-long splitter is proposed to achieve extinction ratio better than −20dB and a bandwidthof 20nm. [Copyright &y& Elsevier]