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Optics Letters

Optics Letters

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  • Vol. 24, Iss. 14 — Jul. 15, 1999
  • pp: 984–986

Amplitude squeezing of light by means of a phase-sensitive fiber parametric amplifier

Dmitry Levandovsky, Michael Vasilyev, and Prem Kumar  »View Author Affiliations


Optics Letters, Vol. 24, Issue 14, pp. 984-986 (1999)
http://dx.doi.org/10.1364/OL.24.000984


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Abstract

We experimentally demonstrate generation of bright sub-Poissonian light by means of parametric deamplification in a phase-sensitive fiber amplifier that is based on a balanced nonlinear Sagnac interferometer. On direct detection, the photocurrent noise falls below the shot-noise limit by (0.6 ± 0.2) dB (1.4 dB when corrected for detection losses). To observe the noise reduction we employed a scheme that used two orthogonally polarized pulses to cancel the noise that arises from the predominantly polarized guided-acoustic-wave Brillouin scattering in the fiber. We also present a simplified semiclassical theory of quantum-noise suppression by this amplifier, which is found to be in good agreement with the experimental results.

© 1999 Optical Society of America

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(270.6570) Quantum optics : Squeezed states

Citation
Dmitry Levandovsky, Michael Vasilyev, and Prem Kumar, "Amplitude squeezing of light by means of a phase-sensitive fiber parametric amplifier," Opt. Lett. 24, 984-986 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-14-984

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