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Multilayer AlxGa1−xAs Heterostructures for Second-Harmonic Generation

  • S. Janz (a1), F. Chatenoud (a1), H. Dai (a1), E. Vilks (a1), M. Buchanan (a1), R. Normandin (a1) and A. J. Springthorpe (a2)...

Quasi-phase matching in AlxGa1−xAs heterostructure optical waveguides can be used for efficient second-harmonic (SH) generation. The efficiency of these devices depends on the linear and nonlinear optical properties of the component materials. We present measurements of the SH susceptibility variation in AlxGa1−xAs with Al concentration, for fundamental light at λ = 1.06 μ. The measured SH susceptibility decreases by an order of magnitude as the Al concentration is varied from x = 0 to x = 0.97. These measurements are used to evaluate the SH generation efficiency of AlxGa1−xAs heterostructures as the structural and material parameters are varied.

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  • EISSN: 1946-4274
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