Abstract

We propose and design a tapered polarization splitter (PS) using the single-polarization property of an elliptical-hole core circular-hole holey fiber (EC-CHF). It is reported that polarization splitting without any crosstalk is enabled using the PS with EC-CHF. In this paper, we show that the mode coupling is enhanced with a tapered PS structure, and the full waveguide separation at the input and output ends can be simultaneously realized. We also propose a full-vectorial finite element beam propagation method using coordinate transformation to efficiently analyze a waveguide whose structure varies along the longitudinal direction. In this approach, computational accuracy and efficiency are greatly improved.

© 2020 Optical Society of America

Design of cross-talk-free polarization converter based on square-lattice elliptical-hole core circular-hole holey fibers

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Bending loss of elliptical-hole core circular-hole holey fibers bent in arbitrary bending directions

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Appl. Opt. 49(32) 6207-6212 (2010)