Quasi-phase-matching in GaAs-AlAs superlattice waveguides via bandgap tuning using quantum well intermixing

We report the observation of quasi-phase-matched second harmonic generation in GaAs-AlAs superlattice waveguides. Quasi-phase-matching was achieved by modulating the bulk-like second-order susceptibility with a bandgap shift, induced using selective area quantum well intermixing.

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Bibliographic Details
Main Authors: Helmy, A.S., Hutchings, D.C., Kleckner, T.C., Marsh, J.H., Bryce, A.C., Arnold, J.M., Stanley, C.R., Aitchison, J.S., Brown, C.T.A., Moutzouris, K., Ebrahimzadeh, M.
Format: Conference Proceeding
Language:English
Subjects:
Frequency conversion
Gallium arsenide
Laser tuning
Nonlinear optics
Optical frequency conversion
Optical harmonic generation
Optical waveguides
Photonic band gap
Semiconductor waveguides
Superlattices
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Description
Summary:We report the observation of quasi-phase-matched second harmonic generation in GaAs-AlAs superlattice waveguides. Quasi-phase-matching was achieved by modulating the bulk-like second-order susceptibility with a bandgap shift, induced using selective area quantum well intermixing.
DOI:10.1109/NLO.2000.883608