An algorithm which allows the analysis of optical periodic structures with a very large number of periods with minimum numerical problems is presented. For this purpose the stable impedance transfer is combined with Floquet's theorem. Numerical results for a Bragg grating with up to 20000 periods are presented featuring the very moderate numerical effort.


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  1. M. D. Feit and J. A. Fleck, "Light propagation in graded index optical fibers," Appl. Opt., vol. 17, pp. 3990-3998, 1978.

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