An efficient method based on FIR filtering and fourier transform for solving the eigen-problems in optoelectronic devices

  • Hongyu Li
  • Yanping XiEmail author
  • Xun Li


This paper presents a highly efficient method based on finite impulse response filtering and Fourier transform techniques to solve the eigen-problems, especially with smoothly varying inhomogeneous-core, such as solving optical eigen modes in graded-index optical waveguides and electronic eigen states in intermixed quantum wells. This type of structure is normally less efficient to be dealt with in space domain directly, but bears with a narrow spectrum in spatial frequency domain. Simulation examples show that the computation cost of the proposed method is approximately at least one order of magnitude smaller than that of the conventional finite difference method solved by the most efficient multiple relatively robust representations method.


Eigenvalues Eigenfunctions Finite impulse response Fourier transforms 



This work is supported by the National Natural Science Foundation of China under Grant 61405068.


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Authors and Affiliations

  1. 1.Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhanChina

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