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High efficiency quasi-phasematched frequency doubling waveguides in KTiOPO4 fabricated by electric field poling
Abstract
Waveguides for quasi-phasematched frequency doubling were fabricated using an applied electric field to produce periodic poling and ion-exchange to produce channel waveguides. A blue output power of 12mW was achieved with 146mW of infrared light in a 3.6mm-long waveguide.
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