Journal
OPTICS LETTERS
Volume 31, Issue 24, Pages 3626-3628Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.31.003626
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We demonstrate second-harmonic generation (SHG) from sub-micrometer-sized AlGaAs/AlXOy artificially birefringent waveguides. The normalized conversion efficiency is the highest ever reported. We further enhanced the SHG using a waveguide-embedded cavity formed by dichroic mirrors. Resonant enhancements as high as similar to 10X were observed. Such devices could be potentially used as highly efficient, ultracompact frequency converters in integrated photonic circuits. (c) 2006 Optical Society of America.
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