Analytical approach to dielectric optical bent slab waveguides


Hiremath, K.R. and Hammer, M. and Stoffer, R. and Prkna, L. and Ctyroky, J. (2005) Analytical approach to dielectric optical bent slab waveguides. Optical and Quantum Electronics, 37 (1-3). pp. 37-61. ISSN 0306-8919

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Abstract:A rigorous classical analytic frequency domain model of con?ned optical wave propagation along 2D bent slab waveguides and curved dielectric interfaces is investigated, based on a piecewise ansatz for bend mode profiles in terms of Bessel and Hankel functions. This approach provides a clear picture of the behaviour of bend modes, concerning their decay for large radial arguments or effects of varying bend radius. Fast and accurate routines are required to evaluate Bessel functions with large complex orders and large arguments. Our implementation enabled detailed studies of bent waveguide properties, including higher order bend modes and whispering gallery modes, their interference patterns, and issues related to bend mode normalization and orthogonality properties.
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Copyright:© 2005 Springer
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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