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Optical Engineering • Open Access

Design of single-polarization single-mode coupler based on dual-core photonic crystal fiber
Author(s): Guochen Wang; Zhenpeng Wang; Fei Yu

Paper Abstract

A single-polarization single-mode (SPSM) photonic crystal fiber (PCF) coupler is designed and investigated by using full-vector finite-element method with the anisotropic perfectly matched layer. We numerically analyze the SPSM coupling properties with respect to the structure parameters and confinement loss characteristics. The results reveal that the coupling length between dual cores is as small as millimeter order of magnitude due to the wide silica bridge of energy transfer, and the SPSM coupling region can be tailored to cover the communication windows of 1.3 or 1.55  μm with optimized design parameters. Moreover, the confinement loss of x polarization is 3 orders of magnitude larger than that of y polarization in single polarization range. The proposed SPSM PCF coupler may find application in polarization-sensitive systems.

Paper Details

Date Published: 2 February 2016
PDF: 6 pages
Opt. Eng. 55(2) 027101 doi: 10.1117/1.OE.55.2.027101
Published in: Optical Engineering Volume 55, Issue 2
Show Author Affiliations
Guochen Wang, Harbin Engineering Univ. (China)
Zhenpeng Wang, Harbin Engineering Univ. (China)
Fei Yu, Harbin Engineering Univ. (China)

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