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Authors: C. Ciret, K. Alexander, N. Poulvellarie, M. Billet, C. Mas Arabi, B. Kuyken, S-P. Gorza, F. Leo
Title: Influence of Longitudinal Mode Components on Second Harmonic Generation in III-V-on-insulator Nanowires
Format: International Journal
Publication date: 10/2020
Journal/Conference/Book: Optics Express
Volume(Issue): p.31584-31593
DOI: 10.1364/OE.402150
Citations: 8 ( - last update: 19/5/2024)
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We model second harmonic generation in subwavelength III-V-on-insulator waveguides. The large index contrast induces strong longitudinal electric field components that play an important role in the nonlinear conversion. We show that many different waveguide dimensions are suitable for efficient conversion of a fundamental quasi-TE pump mode around the 1550 nm telecommunication wavelength to a higher-order second harmonic mode.

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