Self-consistent vector coupled-mode theory for tapered optical waveguides
- 1 June 1990
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 8 (6) , 922-926
- https://doi.org/10.1109/50.54511
Abstract
A nonorthogonal coupled-mode theory for nonparallel waveguides is derived. An orthogonal coupled-mode theory is developed based on the exact local array modes. The relation between the two formulations is established. Closed-form solutions are obtained for the two-guide synchronous tapered coupler. The formalism obeys power conservation.Keywords
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