Study of ultraflattened dispersion square-lattice photonic crystal fiber with low confinement loss

• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2009,（2）
• 页码范围: 124-127
• 页数: 4页
• 语种: 英文
• DOI: 10.1007/s11801-009-8194-8

摘要

A new type ultraflattened dispersion square-lattice photonic crystal fiber with two different air-hole diameters in cladding region is proposed and the dispersion is investigated using a compact 2-D finite difference frequency domain method with the anisotropie perfectly matched layers (PML) absorbing boundary conditions. Through numerical simulation and opti-mizing the geometrical parameters, we find that the photonie crystal fibers proposed can realize ultrafiattened dispersion of 0±0.06 ps/(km·nm) in wavelength range of 1.375 μm to 1.605 μm, which is more fiat than that of triangular PCF, and the confinement loss is as low as about 0.01 dB/km at wavelength of 1.55 μm.