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Genetic algorithm and finite-element design of short single-section passive polarization converter

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3 Author(s)
Correia, D. ; Dept. of Microwaves & Opt., Univ. of Campinas, Brazil ; da Silva, J.P. ; Hernandez-Figueroa, H.E.

A very short passive polarization rotator is proposed, consisting of a single-section asymmetric waveguide. The use of a genetic algorithm together with the finite-element method was crucial to achieve a structure with 99% polarization conversion and a length of 90 μm. This optimum structure exhibits a low total insertion loss: 1.16 dB.

Published in:

Photonics Technology Letters, IEEE  (Volume:15 ,  Issue: 7 )