A coupled-mode formulation based on the second-order coupled-mode equations
✍ Scribed by Younho Choi; Yungeun Jang; Sangsun Lee; Hosung Chang
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 128 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
We present a trial solution for second-order coupled-mode equations and deri¨e power-conser¨ation law from the coupled-mode equations. We in¨estigate the ¨alidity of using the second-order equations and the slowly ¨arying en¨elope approximation, and the numerical results show that the usual assumption, which is that the total field may be expressed as a linear combination of indi¨idual guided modes, must be modified when the structure is strongly coupled.
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## Abstract The application of the coupled‐mode method (CMM) for calculating the propagation constants and the electromagnetic‐field distribution in chirowaveguides is well known. In this paper, two different formulations of the method are revised and compared, and are then extended to partially fi