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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 25 — Dec. 5, 2011
  • pp: 25763–25772

Squeezed light at 1550 nm with a quantum noise reduction of 12.3 dB

Moritz Mehmet, Stefan Ast, Tobias Eberle, Sebastian Steinlechner, Henning Vahlbruch, and Roman Schnabel  »View Author Affiliations


Optics Express, Vol. 19, Issue 25, pp. 25763-25772 (2011)
http://dx.doi.org/10.1364/OE.19.025763


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Abstract

Continuous-wave squeezed states of light at the wavelength of 1550 nm have recently been demonstrated, but so far the obtained factors of noise suppression still lag behind today’s best squeezing values demonstrated at 1064 nm. Here we report on the realization of a half-monolithic nonlinear resonator based on periodically-poled potassium titanyl phosphate which enabled the direct detection of up to 12.3 dB of squeezing at 5 MHz. Squeezing was observed down to a frequency of 2 kHz which is well within the detection band of gravitational wave interferometers. Our results suggest that a long-term stable 1550 nm squeezed light source can be realized with strong squeezing covering the entire detection band of a 3rd generation gravitational-wave detector such as the Einstein Telescope.

© 2011 OSA

OCIS Codes
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(270.0270) Quantum optics : Quantum optics
(270.6570) Quantum optics : Squeezed states

ToC Category:
Quantum Optics

History
Original Manuscript: October 19, 2011
Revised Manuscript: November 21, 2011
Manuscript Accepted: November 21, 2011
Published: December 1, 2011

Citation
Moritz Mehmet, Stefan Ast, Tobias Eberle, Sebastian Steinlechner, Henning Vahlbruch, and Roman Schnabel, "Squeezed light at 1550 nm with a quantum noise reduction of 12.3 dB," Opt. Express 19, 25763-25772 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-25-25763


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References

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