The Transactions of the Korean Institute of Electrical Engineers C (대한전기학회논문지:전기물성ㆍ응용부문C)

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis of Signal Propagation in Nonlinear Optical Fiber using SS-FEM with Sparse Matrix

희귀행렬 SS-FEM에 의한 비선형 광섬유의 전송신호 해석

  • 정백호 (호서대 정보통신공학부) ;
  • 이호준 (호서대 정보통신공학부)
  • Published : 2000.01.01
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Abstract

Signal propagation in nonlinear optical fiber is analyzed numerically by using SS-FEM (Split-Step Finite Element Method). By adopting cubic element function in FEM, soliton equation of which exact solution was well known, has been solved. Also, accuracy of numerical results and computing times are compared with those of Fourier method, and we have found that solution obtained from using FEM was very relatively accurate. Especially, to reduce CPU time in matrix computation in each step, the matrix imposed by the boundary condition is approximated as a sparse matrix. As a result, computation time was shortened even with the same or better accuracy when compared to those of the conventional FEM and Fourier method.

Keywords

References

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