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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 19 — Sep. 13, 2010
  • pp: 20143–20150

Generation of squeezed light with a monolithic optical parametric oscillator: Simultaneous achievement of phase matching and cavity resonance by temperature control

Hidehiro Yonezawa, Koyo Nagashima, and Akira Furusawa  »View Author Affiliations

Optics Express, Vol. 18, Issue 19, pp. 20143-20150 (2010)

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We generate squeezed state of light at 860 nm with a monolithic optical parametric oscillator. The optical parametric oscillator consists of a periodically poled KTiOPO4 crystal, both ends of which are spherically polished and mirror-coated. We achieve both phase matching and cavity resonance by controlling only the temperature of the crystal. We observe up to −8.0±0.2 dB of squeezing with the bandwidth of 142 MHz. Our technique makes it possible to drive many monolithic cavities simultaneously by a single laser. Hence our monolithic optical parametric oscillator is quite suitable to continuous-variable quantum information experiments where we need a large number of highly squeezed light beams.

© 2010 Optical Society of America

OCIS Codes
(120.2920) Instrumentation, measurement, and metrology : Homodyning
(270.6570) Quantum optics : Squeezed states

ToC Category:
Quantum Optics

Original Manuscript: July 19, 2010
Revised Manuscript: September 1, 2010
Manuscript Accepted: September 1, 2010
Published: September 7, 2010

Hidehiro Yonezawa, Koyo Nagashima, and Akira Furusawa, "Generation of squeezed light with a monolithic optical parametric oscillator: Simultaneous achievement of phase matching and cavity resonance by temperature control," Opt. Express 18, 20143-20150 (2010)

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