New computational treatment of optical wave propagation in lossy waveguides

作者：Zhu, Jian-xin^*; Wang, Guan-jie

来源：Frontiers of Information Technology & Electronic Engineering, 2015, 16(8): 646-653.

DOI：10.1631/FITEE.1400406

• Adjoint operator
• Orthogonal
• Chebyshev
• Pseudospectral method
• Dirichlet-to-Neumann map

In this paper, the optical wave propagation in lossy waveguides is described by the Helmholtz equation with the complex refractive-index, and the Chebyshev pseudospectral method is used to discretize the transverse operator of the equation. Meanwhile, an operator marching method, a one-way re-formulation based on the Dirichlet-to-Neumann (DtN) map, is improved to solve the equation. Numerical examples show that our treatment is more efficient.

• 出版日期2015-8
• 单位浙江大学