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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 25,
  • Issue 9,
  • pp. 2807-2813
  • (2007)

Improved Bidirectional Beam-Propagation Method by a Fourth-Order Finite-Difference Scheme

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Abstract

A fourth-order finite-difference formula is applied to bidirectional beam-propagation method based on scattering operators. The method is shown to provide significant improvement in accuracy and efficiency, particularly for waveguide structures of high index contrast.

© 2007 IEEE

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