Biorthonormal-basis method for the vector description of optical-fiber modes
Biorthonormal-basis method for the vector description of optical-fiber modes
复制标题
光纤模式矢量描述的生物正交基方法
DOI:
10.1109/50.669048
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发表时间:
1998
期刊:
影响因子:
--
通讯作者:
P. Andrés
中科院分区:
文献类型:
--
作者:
E. Silvestre;M. Andrés;P. Andrés
This paper gives the theoretical basis for the development of real vector modal methods to describe optical-fiber modes. To this end, the vector wave equations, which determine the electromagnetic fields, are written in terms of a pair of linear, nonself-adjoint operators, whose eigenvectors satisfy biorthogonality relations. The key of our method is to obtain a matrix representation of the vector wave equations in a basis that is defined by the modes of an auxiliary system. Our proposed technique can be applied to fibers with any profile, even those with a complex refractive index. An example is discussed to illustrate our approach.