Analysis of the guided modes in slab-coupled waveguides using a variational method |
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Authors: | Ohtaka M Matsuhara M Kumagai N |
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Affiliation: | Faculty of Engineering, Fukui University, Fukui, Japan; |
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Abstract: | The waveguiding properties of the slab-coupled waveguides (i.e., the optical stripline and the rib waveguide) are investigated by the vector variational method. The slab-coupled waveguides are low-loss optical waveguides which are easy to fabricate and design. In this paper, the propagation constants and the field intensity distributions of the slab-coupled waveguides are presented, and the effects on the wave-guiding properties caused by changing their geometrical parameters are discussed. The results obtained by employing the variational method are compared with those obtained by using other methods. |
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