Abstract

We experimentally demonstrate an optical parametric oscillator, whose signal pumps another difference-frequency generation process. Engineered idler frequency coincidence of both processes in a single quasi periodic crystal improves pump-to-idler slope efficiency by 52.8%, from 15.25% to 23.3%, and pump-to-idler conversion efficiency (at an average pump power of 1.2 W) by 16.6%, from 12.5% to 14.58%.

© 2010 Optical Society of America

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