Concepedia

Continuous-wave second-harmonic generation in modal phase matched semiconductor waveguides

S. Ducci, L. Lanco, V. Berger, Alfredo De Rossi, V. Ortiz, M. Calligaro

Applied Physics Letters · 2004 · 80 citations · 12 references

DOI

Concepts

Abstract

We report the observation of continuous-wave second-harmonic generation in a modalphase-matched GaAs/AlGaAs waveguide. The heterostructure has been designed to generate a second-harmonic signal via a type-II process with a fundamental signal around 1.55 μm. Continuous wave conversion enables a quantitative estimation of the conversion efficiency. In our case, η=30%±5% W−1 cm−2 is found experimentally.

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