Improving the beam propagation method for TM polarization |
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| Authors: | Ho Pui Lin Lu Ya Yan |
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| Affiliation: | 1. Department of Mathematics, City University of Hong Kong, Kowloon, Hong Kong
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| Abstract: | The beam propagation method (BPM) has been widely used in numerical simulations of optical waveguides that vary slowly in the propagation direction. However, when BPM is used over a large propagation distance, a significant amplitude error in the coefficient of the leading propagating mode can be observed. Energy-conserving corrections and the single scatter approximation have been used to improve the accuracy of the BPM. |
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