1 μm波段零色散高非线性光子晶体光纤的设计
Design of Photonic Crystal Fiber with Zero Dispersion and High Nonlinearity at the Wavelength of 1 μm

DOI: 10.12677/OE.2019.91011, PP. 69-75

Keywords: 零色散，非线性，光子晶体光纤，光纤传感
Zero Dispersion, Nonlinearity, Photonic Crystal Fiber, Optic Fiber Sensors

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Abstract:

本文设计了一种在1 μm波段具有零色散、高非线性系数的光子晶体光纤，采用有限元法研究了该光纤的色散特性、模场特性及非线性特性。数值计算结果表明，当光纤包层孔间距为4.344 μm时，在1 μm波长处可获得零色散，有效模场面积为11.07 μm²，非线性系数为18.17 W^？1？km^？1。这种非线性光纤在高速光通信、光纤传感及非线性光学方面具有广泛的应用前景。
A kind of zero dispersion and high nonlinearity photonic crystal fiber at the wavelength of 1 μm is designed. Characteristics such as dispersion, effective mode area, and nonlinear coefficient of the fiber are investigated by the finite element method. Simulation results show that the dispersion is 0 at the wavelength of 1 μm when the air hole pitch is 4.344 μm, the effective mode area is 11.07 μm² and the nonlinear coefficient is 18.17 W^？1？km^？1. It could be widely used in the high speed optical communications, optic fiber sensors and nonlinear optics.

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