Highly nonlinear low-dispersion photonic crystal fiber with high birefringence for four-wave mixing

• Published in: Optical materials 2012-12, Vol.35 (2), p.217-221
• Main Authors: Xu, Qiang, Miao, Runcai, Zhang, Yani
• Format: Article
• Language: English
• Subjects: Birefringence; Crystal fibers; Dispersions; Exact sciences and technology; Fiber optics; Four-wave mixing; Fundamental areas of phenomenology (including applications); High birefringence; Low dispersion; Mathematical analysis; Nonlinear optics; Nonlinearity; Optics; Perfectly matched layers; Phase conjugation, optical mixing; photorefractive and kerr effects; Photonic crystal fibers; Photonic crystals; Physics; Wave optics
• ISSN: 0925-3467; 1873-1252
• DOI: 10.1016/j.optmat.2012.08.011

► Nonlinear characteristics and dispersion characteristics can be controlled by adjusting its structure parameters. ► The dispersion variation is within ±0.7pskm−1nm−1 in the C band. ► The birefringence is 4.92×10−3 at 1.55μm. ► The nonlinear coefficient of the optimized PCF is 60.5W−1km−1. We proposed a new structure of highly nonlinear low-dispersion photonic crystal fiber with high birefringence for four-wave mixing. Its dispersion and nonlinear coefficient are investigated simultaneously by using the full-vector finite element method with anisotropic perfectly matched layers. Numerical results show that the dispersion variation is within ±0.7pskm−1nm−1 in the C band, and the corresponding nonlinear coefficient and birefringence are about 60.5W−1km−1 and 4.92×10−3 at 1.55μm, respectively. The proposed PCF with low dispersion, high nonlinearity, and high birefringence can have important application in four-wave mixing.