中国激光, 2004, 31 (11): 1337, 网络出版: 2006-06-12
微结构光纤的有限元分析计算法
Analysis of the Microstructure Fiber by the Finite Element Method
光电子学 光子晶体光纤 微结构光纤 有限元法 optoelectronics photonic crystal fiber microstructure fiber finite element method
摘要
利用有限元法对零色散点在780 nm的均匀微结构光纤进行经过简化的矢量波动方程模拟计算,获得了所需要的模场分布、有效折射率、色散、有效模面积等参数,并与实验数据相参照验证了这种方法的准确性和精度。进而将这种计算方法用于非均匀微结构光纤的模拟计算,不仅获得了很好的结果,与其他方法相比还具有更快的计算速度,计算所得到的结果对将来设计和拉制微结构光纤很有帮助,并且这种方法在设计不规则的微结构光纤方面具有很好的优势。
Abstract
The guiding problem in microstructure fiber with 780 nm zero dispersion wavelength is accurately analyzed through a reduced vector wave equation, using a novel finite element method (FEM). The two-dimensional transverse intensity distribution of the fundamental mode, the effective refractive index, dispersion curves of guided modes for different fiber structural parameters are calculated. The results match those achieved in recent experiments in which the feasibility of this type of fiber was shown. Furthermore, this method is used for simulating the random distributed microstructure fiber, and a reasonable result is gotten rapidly and accurately.
胡明列, 王清月, 栗岩锋. 微结构光纤的有限元分析计算法[J]. 中国激光, 2004, 31(11): 1337. 胡明列, 王清月, 栗岩锋. Analysis of the Microstructure Fiber by the Finite Element Method[J]. Chinese Journal of Lasers, 2004, 31(11): 1337.