Hybrid square-lattice photonic crystal fiber with broadband single-mode operation, high birefringence, and normal dispersion

Soeun Kim, Yong Soo Lee, Chung Ghiu Lee, Yongmin Jung, Kyunghwan Oh

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In this study we propose a new photonic crystal fiber (PCF) design that simultaneously offers broadband single-mode operation, high birefringence, and large normal dispersion in the optical-communication wavelength regime. The waveguide is based on a hybrid square-lattice PCF (HS-PCF) that has circular air holes of two different diameters alternating in the cladding, plus a pure silica defect at the center. The optical properties of the guided modes are analyzed numerically by the finite-element method (FEM) with a perfectly matched layer as the boundary condition. The optimized HS-PCF has a dispersion coefficient of -601.67 ps nm-1 km-1 and a high birefringence of 1.025×10-2 at 1.55 μm. In addition, over the S+C+L+U wavelength bands the proposed HS-PCF with ultraflat birefringence with a slope on the order of 10-5 .

Original languageEnglish
Pages (from-to)449-455
Number of pages7
JournalJournal of the Optical Society of Korea
Volume19
Issue number5
DOIs
Publication statusPublished - 2015 Oct

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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