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Detail
Journal Article
A Rigorous 2D Approximation Technique for 3D Waveguide Structures for BPM Calculations
- Issue Date
- 2003-12
- Citation
- ETRI Journal, v.25, no.6, pp.535-537
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Project Code
- 03MB3600, Photonic device integrated module for optical access network, Oh Kwang Ryong
- Abstract
- We propose a rigorous 2D approximation technique for the 3D waveguide structures; it can minimize the well-known approximation errors of the commonly used effective index method. The main concept of the proposed technique is to compensate for the effective cladding index in the equivalent slab model of the original channel waveguide from the modal effective index calculated by the nonuniform 2D finite difference method. With simulations, we used the proposed technique to calculate the coupling characteristics of a directional coupler by the 2D beam propagation method, and the results were almost exactly the same as the results calculated by the 3D beam propagation method.
- KSP Keywords
- 2D beam, Approximation errors, Approximation technique, Coupling Characteristics, Effective index method(EIM), Finite Difference method, Slab model, Waveguide Structure, beam propagation method, channel waveguide, directional coupler(DC)
This work is distributed under the term of Korea Open Government License (KOGL)
(Type 4: : Type 1 + Commercial Use Prohibition+Change Prohibition)
(Type 4: : Type 1 + Commercial Use Prohibition+Change Prohibition)
