Abstract
We experimentally demonstrated the quantum anticorrelation between fundamental and second-harmonic fields in an external cavity-enhanced singly resonant periodically poled KTP (PPKTP) frequency doubler. Fundamental amplitude squeezing of and second-harmonic amplitude squeezing of were generated simultaneously at a pump power of . Meanwhile, quantum anticorrelation of between the squeezed fundamental and the second-harmonic fields was observed.
© 2007 Optical Society of America
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