A design method for high order optical thin film filters under boundary conditions

Bastian Diehm, C. Gulde, N. Frühauf


This paper presents an efficient search method for equivalent thin film filter realization to a given design under boundary conditions. To calculate realizations, the algorithm presented in [1] is used and the boundary conditions are given in the form of refractive index intervals. Since the number of possible solutions increases exponentially with the number of film layers, only a small part of them can be checked for boundary conditions in a reasonable time. The method presented here uses the results of a Monte Carlo simulation and Yen's algorithm. The time consuming simulation is conducted only once for given boundary conditions. Since the boundary conditions depend on the fabrication process this method saves a significant amount of time during filter design.

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Photonics Letters of Poland - A Publication of the Photonics Society of Poland
Published in cooperation with SPIE

ISSN: 2080-2242