Highly birefringent photonic crystal fiber with a squeezed core and small modal area

摘要

An index guiding photonic crystal fiber with a squeezed core is proposed and properties, including birefringence and effective modal area, are numerically analyzed using the multipole method. Numerical results show that high birefringence of 1.544 x 10(-2) and a small modal area of 2.39 mu m(2) are achieved at 1.55 mu m simultaneously. Moreover, impacts of hole spacing and hole size on birefringence and effective modal area are also investigated in detail. (C) 2016 Elsevier GmbH. All rights reserved.