1998•Applied Physics LettersOpen access

Second-harmonic generation at λ=1.6 μm in AlGaAs/Al2O3 waveguides using birefringence phase matching

Andrea Fiore, Siegfried Janz, L. Delobel, P. van der Meer, P. Bravetti, V. Berger, E. Rosencher, J. Nagle

Abstract

We demonstrate phase-matched second-harmonic generation from a λ=1.6 μm pump in a GaAs-based waveguide. Phase matching is obtained by using the form birefringence in an AlGaAs/Al2O3 multilayer obtained by selective wet oxidation.

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Key concepts: Birefringence, Phase matching, Second-harmonic generation, Materials science, Optics, Phase (matter), Waveguide, Optoelectronics