7 dB quadrature squeezing at 860 nm with periodically poled KTiOPO 4

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

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Abstract

The authors observed -7.2±0.2 dB quadrature squeezing at 860 nm 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.

Original languageEnglish
Article number061116
JournalApplied Physics Letters
Volume89
Issue number6
DOIs
Publication statusPublished - 2006

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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