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7 dB quadrature squeezing at 860 nm with periodically-poled KTiOPO4

Shigenari Suzuki·Hidehiro Yonezawa·Fumihiko Kannari·Masahide Sasaki·Akira Furusawa
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Abstract

We observed -7.2 dB quadrature squeezing at 860 nm by using a sub-threshold continuous-wave pumped optical parametric oscillator with a periodically-poled KTiOPO4 crystal as a nonlinear optical medium. The squeezing level was measured with the phase of homodyne detection locked at the quadrature. The blue light induced infrared absorption was not observed in the experiment.

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Shigenari Suzuki, Hidehiro Yonezawa, Fumihiko Kannari, Masahide Sasaki, Akira Furusawa. 2006-08-15. 7 dB quadrature squeezing at 860 nm with periodically-poled KTiOPO4. https://doi.org/10.1063/1.2335806

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