An improved coupled mode theory, grounded in the field matching technique, has been devised and validated for photonic devices with gradually varying structures, such as tapers. This novel approach addresses a limitation of traditional coupled mode theory, which approximates varying structures by dividing them into several uniform sections with different waveguide widths. This segmentation often leads to unphysical field reflections at the interfaces between adjacent sections, impacting both power propagation and reflection coefficients of the devices.

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[1] 家轩 章, "improved couple mode theory", IEEE Dataport, 2024. [Online]. Available: http://dx.doi.org/10.21227/2jqn-he26. Accessed: Dec. 26, 2024.
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url = {http://dx.doi.org/10.21227/2jqn-he26},
author = {家轩 章 },
publisher = {IEEE Dataport},
title = {improved couple mode theory},
year = {2024} }
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T1 - improved couple mode theory
AU - 家轩 章
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家轩 章. (2024). improved couple mode theory. IEEE Dataport. http://dx.doi.org/10.21227/2jqn-he26
家轩 章, 2024. improved couple mode theory. Available at: http://dx.doi.org/10.21227/2jqn-he26.
家轩 章. (2024). "improved couple mode theory." Web.
1. 家轩 章. improved couple mode theory [Internet]. IEEE Dataport; 2024. Available from : http://dx.doi.org/10.21227/2jqn-he26
家轩 章. "improved couple mode theory." doi: 10.21227/2jqn-he26