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Based on the recent breakthroughs in oxidized AlGaAs technology, a considerable improvement in IR generation through merging of optical amplification and three-wave mixing is predicted. Amplification of one of the two input fields is shown to strongly relax the phase-matching condition for difference-frequency generation in AlGaAs waveguides. This effect is potentially crucial for the realization of an integrated semiconductor optical parametric oscillator.
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Leo et al. (1998) studied this question.
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