Liu Y, Rahman B M, Ning Y N, Grattan K T
Appl Opt. 1995 Mar 20;34(9):1540-3. doi: 10.1364/AO.34.001540.
Guided modes in graded-index multimode optical fibers are accurately analyzed with the vector H-field finite-element method, aided by the use of the WKB method. As a result, exact mode-propagation constants and the corresponding modal eigenfield distributions are provided for the study of the modal noise that is due to the mode-coupling effect.
利用矢量H场有限元法，并借助WKB方法，对渐变折射率多模光纤中的导模进行了精确分析。结果，给出了精确的模式传播常数和相应的模式本征场分布，用于研究由模式耦合效应引起的模式噪声。
