摘要
本文基于等效折射率模型将光子晶体光纤等效为传统阶跃光纤,通过对微结构中基模的本征方程的求解,得到了包层有效折射率、归一化频率、群速度色散系数以及电场分布等特性与波长的关系,并分别讨论了光子晶体光纤孔间距固定和孔半径固定的情况下对光纤特性的影响,分析表明,通过改变光子晶体光纤的结构参数可以适当地调整光纤的特性,从而对不同的应用场合下光子晶体光纤的定性设计提供了一定的理论依据。
In this paper, based on the effective refractive model and the equivalence of the photonic crystal fiber to the conventional step-index fiber, properties including the effective refractive index of cladding, normalized frequency, chromatic dispersion and electric field distribution of photonie crystal fiber are obtained by solving the eigenvalue equation for the fundamental mode. The relationships between these property parameters and the wavelength are investigated. The influences of the air core ditch and radius on fiber property parameters are discussed. It can be shown that the fiber properties can be properly adjusted via changing the structure parameters, which can be used as a qualitative basis for the structure design of the photonic crystal fiber for different applications.
出处
《微计算机信息》
北大核心
2006年第05X期304-306,99,共4页
Control & Automation
关键词
光子晶体光纤
等效折射率模型
色散特性
photonic crystal fiber （PCF）
effective refractive model
chromatic dispersion
