Abstract

We demonstrate a low-threshold twin-beam generator using a cw triply resonant optical parametric oscillator consisting of two coupled cavities: one that resonates the signal and idler waves and the other the pump field. An intensity correlation of 5.5 dB was observed at 3 MHz for a type-II phase-matched KTP optical parametric oscillator.

© 1998 Optical Society of America

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References

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  1. A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, “Observation of quantum noise reduction on twin laser beams,” Phys. Rev. Lett. 59, 2555–2557 (1987).
    [Crossref] [PubMed]
  2. K. W. Leong, N. C. Wong, and J. H. Shapiro, “Nonclassical intensity correlation from a type I phase-matched optical parametric oscillator,” Opt. Lett. 15, 1058–1060 (1990).
    [Crossref] [PubMed]
  3. C. D. Nabors and R. M. Shelby, “Two-color squeezing and sub-shot-noise signal recovery in doubly resonant optical parametric oscillators,” Phys. Rev. A 42, 556–559 (1990).
    [Crossref] [PubMed]
  4. J. Mertz, T. Debuisschert, A. Heidmann, C. Fabre, and E. Giacobino, “Improvements in the observed intensity correlation of optical parametric oscillator twin beams,” Opt. Lett. 16, 1234–1236 (1991).
    [Crossref] [PubMed]
  5. J. J. Snyder, E. Giacobino, C. Fabre, A. Heidmann, and M. Ducloy, “Sub-shot-noise measurements using the beat note between quantum-correlated photon beams,” J. Opt. Soc. Am. B 7, 2132–2136 (1990).
    [Crossref]
  6. N. C. Wong, K. W. Leong, and J. H. Shapiro, “Quantum correlation and absorption spectroscopy in an optical parametric oscillator in the presence of pump noise,” Opt. Lett. 15, 891–893 (1990).
    [Crossref] [PubMed]
  7. P. H. Souto Ribeiro, C. Schwob, A. Maitre, and C. Fabre, “Sub-shot-noise high-sensitivity spectroscopy with optical parametric oscillator twin beams,” Opt. Lett. 22, 1893–1895 (1997).
    [Crossref]
  8. N. C. Wong, “Squeezed amplification in a nondegenerate parametric amplifier,” Opt. Lett. 16, 1698–1700 (1991).
    [Crossref] [PubMed]

1997 (1)

1991 (2)

1990 (4)

1987 (1)

A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, “Observation of quantum noise reduction on twin laser beams,” Phys. Rev. Lett. 59, 2555–2557 (1987).
[Crossref] [PubMed]

Camy, G.

A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, “Observation of quantum noise reduction on twin laser beams,” Phys. Rev. Lett. 59, 2555–2557 (1987).
[Crossref] [PubMed]

Debuisschert, T.

Ducloy, M.

Fabre, C.

Giacobino, E.

Heidmann, A.

Horowicz, R. J.

A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, “Observation of quantum noise reduction on twin laser beams,” Phys. Rev. Lett. 59, 2555–2557 (1987).
[Crossref] [PubMed]

Leong, K. W.

Maitre, A.

Mertz, J.

Nabors, C. D.

C. D. Nabors and R. M. Shelby, “Two-color squeezing and sub-shot-noise signal recovery in doubly resonant optical parametric oscillators,” Phys. Rev. A 42, 556–559 (1990).
[Crossref] [PubMed]

Reynaud, S.

A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, “Observation of quantum noise reduction on twin laser beams,” Phys. Rev. Lett. 59, 2555–2557 (1987).
[Crossref] [PubMed]

Schwob, C.

Shapiro, J. H.

Shelby, R. M.

C. D. Nabors and R. M. Shelby, “Two-color squeezing and sub-shot-noise signal recovery in doubly resonant optical parametric oscillators,” Phys. Rev. A 42, 556–559 (1990).
[Crossref] [PubMed]

Snyder, J. J.

Souto Ribeiro, P. H.

Wong, N. C.

J. Opt. Soc. Am. B (1)

Opt. Lett. (5)

Phys. Rev. A (1)

C. D. Nabors and R. M. Shelby, “Two-color squeezing and sub-shot-noise signal recovery in doubly resonant optical parametric oscillators,” Phys. Rev. A 42, 556–559 (1990).
[Crossref] [PubMed]

Phys. Rev. Lett. (1)

A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, “Observation of quantum noise reduction on twin laser beams,” Phys. Rev. Lett. 59, 2555–2557 (1987).
[Crossref] [PubMed]

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Figures (4)

Fig. 1.
Fig. 1.

Schematic of a dual-cavity TRO. Signal and idler fields are confined within the DRO cavity formed by mirrors M2 and M3.

Fig. 2.
Fig. 2.

Schematic of the experimental setup. HWP: half-wave plate, PBS: polarizing beam splitter.

Fig. 3.
Fig. 3.

Noise power spectrum of (a) mixed signal-idler mode (HWP1 angle at 22.5°), (b) pure signal-idler mode (HWP1 angle at 0°), and (c) photodetection electronics noise floor.

Fig. 4.
Fig. 4.

Noise power spectrum of output difference-intensity correlation for (a) mixed signal-idler mode (HWP1 angle at 22.5°) and (b) pure signal-idler mode (HWP1 angle at 0°). Maximum noise suppression is 5.5 dB at 3 MHz.

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