| Autor: |
Sucharita Bhattacharyya, Anup Kumar Thander |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
Lecture Notes in Networks and Systems ISBN: 9789811039522 |
| DOI: |
10.1007/978-981-10-3953-9_22 |
| Popis: |
In this paper, we accomplish a comprehensive study of optical waveguide modeling incorporating modal index concept in refractive index profile for two specific rib waveguide structures using fourth-order finite difference method in combination with Newton–Krylov subspace algorithm. The numerical results verify the behavior of this higher order compact (HOC) approximations for stability and convergence with least computational time. Obtained results for normalized indices and modal indices are compared with other methods to verify the accuracy and efficiency of the simple scheme used. Also variations of these indices with waveguide structure parameters help to identify their optimized values for efficient wave propagation which are found to be material dependent. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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