Eur. Phys. J. Appl. Phys. 40, 175-179 (2007)
https://doi.org/10.1051/epjap:2007134

A new type ultraflattened dispersion photonic crystal fiber with low confinement loss

¹ College of Precision Instrument and Optoelectronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin 300072, P.R. China
² Key Laboratory of Optoelectric Information Science and Technology, Ministry of Education, Tianjin University, Tianjin 300072, P.R. China

Corresponding author: xiaoling_tan@yahoo.com.cn

Received: 26 April 2007
Revised: 3 July 2007
Accepted: 13 July 2007
Published online: 21 September 2007

Abstract

In this paper, a new type PCF with three different air-hole diameters in cladding region is proposed and investigated by using a compact 2-D finite difference frequency domain (FDFD) method with anisotropic perfectly matched layers (PML) absorbing boundary conditions. Through numerical simulation we found that by optimizing the geometrical parameters, our proposed structure with fewer of air-hole rings greatly meets the performance criteria such as ultraflattened dispersion and low confinement loss, which is highly instructive for designing photonic crystal fibers.