An efficient finite-difference frequency domain-method for waveguiding structures including thin curved layers

A method is presented that incorporates thin, lossy layers into a finite-difference frequency-domain algorithm designed for structures with circular geometry. The method allows the grid spacing to be much larger than the thickness of the thin layers. This greatly reduces the computational effort required when simulating circular structures such as optical fibers that incorporate thin layers. The method is validated by a comparison with the analytical solutions. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 453–457, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21378

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