arXiv:quant-ph/0602036 · Applied Physics Letters

7 dB quadrature squeezing at 860nm with periodically poled KTiOPO4

Shigenari Suzuki, Hidehiro Yonezawa, Fumihiko Kannari, Masahide Sasaki, Akira Furusawa

Published Aug 7, 2006• 101 citations

Abstract

The authors observed −7.2±0.2dB quadrature squeezing at 860nm by using a subthreshold 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.

DOI: 10.1063/1.2335806

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