Numerical instability of finite-differen
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Hyangwon Seo; Sungtae Kim; Sang-Sun Lee; Hosung Chang; Myung-Ryul Choi
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Article
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1999
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John Wiley and Sons
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English
⚖ 150 KB
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We in¨estigate the numerical instability of a finitedifference beam-propagation formulation applied to tapered optical wa¨eguides, and we find that instability may occur with the use of con¨entional transparent boundary conditions. We suggest modified transparent boundary conditions to remo¨e the in