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- W1980149865 abstract "Summary form only given. Frequency conversion in GaAs waveguides is a promising approach to the realization of tunable sources in the mid-IR and wavelength shifters for optical-fiber communications. The high second-order nonlinear susceptibility of GaAs and the possibility of integration with sources imply high conversion efficiencies and may lead to all-semiconductor integrated optical parametric oscillators. It was recently demonstrated that very high form birefringence can be obtained in (Al)GaAs/Al/sub 2/O/sub 3/ multilayers, realized by selective wet oxidation of (Al)GaAs/AlAs. This has led to demonstration of mid-IR sources by difference-frequency generation. Here we demonstrate that the same concept can be used to phase match frequency conversion in the 1.55-/spl mu/m telecommunication window. In this case, a much higher birefringence and a new design for the cladding layers are needed to compensate for the high dispersion of AlGaAs near the bandgap." @default.
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- W1980149865 date "1998-01-01" @default.
- W1980149865 modified "2023-09-22" @default.
- W1980149865 title "Birefringence phase-matched frequency doubling at /spl lambda/=1.6 /spl mu/m in GaAs-based waveguides" @default.
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- W1980149865 doi "https://doi.org/10.1109/cleo.1998.676553" @default.
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