Modeling comparison of second-harmonic generation in high-index-contrast devices |
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Authors: | Björn Maes Peter Bienstman Roel Baets Bobo Hu Phillip Sewell Trevor Benson |
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Institution: | (1) Department of Information Technology, Ghent University—IMEC, St.-Pietersnieuwstraat 41, 9000 Ghent, Belgium;(2) George Green Institute for Electromagnetics Research, University of Nottingham, University Park, Nottingham, NG7, UK |
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Abstract: | In this paper we model second-harmonic generation in a microphotonic structure using two different numerical methods. The
proposed two-dimensional waveguide device is challenging as it incorporates a high-contrast grating, which instigates strong
local enhancement but also radiation losses. The first simulation method extends the time-domain beam propagation method,
whereas the second one builds upon frequency-domain eigenmode expansion. Good agreement between both tools is obtained for
both the linear and nonlinear simulations. |
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Keywords: | Second-harmonic generation Modeling methods High-contrast devices |
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