Abstract

Nondegenerate optical parametric oscillators generate above-threshold signal and idler beams that have intensity fluctuations correlated at the quantum level (twin beams). We describe what is to our knowledge the first high-sensitivity spectroscopy experiment using twin beams emitted by a cw optical parametric oscillator: a very weak two-photon absorption signal, in the 10-7 range, is recorded on the 4S1/25S1/2 transition of atomic potassium with a noise background that is reduced by 1.9  dB with respect to the shot-noise limit of the light used in the experiment.

© 1997 Optical Society of America

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References

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  1. C. Fabre and J. P. Pocholle, eds., special issue on χ(2) second-order nonlinear optics, J. Eur. Opt. Soc. B 9, 131–293 (1997).
  2. L. A. Wu, J. Kimble, J. Hall, and H. Wu, Phys. Rev. Lett. 57, 2520 (1986).
    [CrossRef] [PubMed]
  3. E. Giacobino and C. Fabre, eds., special issue on quantum noise reduction in optical systems: experiments, Appl. Phys. B 55, 189–303 (1992).
    [CrossRef]
  4. A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, Phys. Rev. Lett. 59, 2555 (1987).
    [CrossRef] [PubMed]
  5. J. Mertz, T. Debuisschert, A. Heidmann, C. Fabre, and E. Giacobino, Opt. Lett. 16, 1234 (1991).
    [CrossRef] [PubMed]
  6. E. Polzik, J. Carri, and H. J. Kimble, Phys. Rev. Lett. 68, 3020 (1992).
    [CrossRef] [PubMed]
  7. S. Kasapi, S. Lathi, and Y. Yamamoto, Opt. Lett. 22, 478 (1997).
    [CrossRef] [PubMed]
  8. F. Marin, A. Bramati, V. Jost, and E. Giacobino, Opt. Commun. 140, 146 (1997).
    [CrossRef]
  9. Y.-Q. Li, P. Lynam, M. Xiao, and P. Edwards, Phys. Rev. Lett. 78, 3105 (1997).
    [CrossRef]
  10. C. Nabors and R. Shelby, Phys. Rev. A 44, 3266 (1991).
    [CrossRef]
  11. W. Hai, X. Chang, D. P. Qing, X. C. Yang, Z. Yun, and P. Kunchi, presented at the Workshop on Quantum Communications and Measurement, Hakone, Japan, September 25–30, 1996.
  12. T. Debuisschert, A. Sizmann, E. Giacobino, and C. Fabre, J. Opt. Soc. Am. B 10, 1668 (1993).
    [CrossRef]
  13. E. Giacobino, C. Fabre, S. Reynaud, A. Heidmann, and R. Horowicz, in Photons and Quantum Fluctuations, E. Pike and H. Walther, eds. (Hilger, New York, 1988), p. 81.
  14. C. Harper and M. Levenson, Opt. Commun. 20, 107 (1977).
    [CrossRef]

1997 (4)

C. Fabre and J. P. Pocholle, eds., special issue on χ(2) second-order nonlinear optics, J. Eur. Opt. Soc. B 9, 131–293 (1997).

S. Kasapi, S. Lathi, and Y. Yamamoto, Opt. Lett. 22, 478 (1997).
[CrossRef] [PubMed]

F. Marin, A. Bramati, V. Jost, and E. Giacobino, Opt. Commun. 140, 146 (1997).
[CrossRef]

Y.-Q. Li, P. Lynam, M. Xiao, and P. Edwards, Phys. Rev. Lett. 78, 3105 (1997).
[CrossRef]

1993 (1)

1992 (2)

E. Polzik, J. Carri, and H. J. Kimble, Phys. Rev. Lett. 68, 3020 (1992).
[CrossRef] [PubMed]

E. Giacobino and C. Fabre, eds., special issue on quantum noise reduction in optical systems: experiments, Appl. Phys. B 55, 189–303 (1992).
[CrossRef]

1991 (2)

1987 (1)

A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, Phys. Rev. Lett. 59, 2555 (1987).
[CrossRef] [PubMed]

1986 (1)

L. A. Wu, J. Kimble, J. Hall, and H. Wu, Phys. Rev. Lett. 57, 2520 (1986).
[CrossRef] [PubMed]

1977 (1)

C. Harper and M. Levenson, Opt. Commun. 20, 107 (1977).
[CrossRef]

Bramati, A.

F. Marin, A. Bramati, V. Jost, and E. Giacobino, Opt. Commun. 140, 146 (1997).
[CrossRef]

Camy, G.

A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, Phys. Rev. Lett. 59, 2555 (1987).
[CrossRef] [PubMed]

Carri, J.

E. Polzik, J. Carri, and H. J. Kimble, Phys. Rev. Lett. 68, 3020 (1992).
[CrossRef] [PubMed]

Chang, X.

W. Hai, X. Chang, D. P. Qing, X. C. Yang, Z. Yun, and P. Kunchi, presented at the Workshop on Quantum Communications and Measurement, Hakone, Japan, September 25–30, 1996.

Debuisschert, T.

Edwards, P.

Y.-Q. Li, P. Lynam, M. Xiao, and P. Edwards, Phys. Rev. Lett. 78, 3105 (1997).
[CrossRef]

Fabre, C.

T. Debuisschert, A. Sizmann, E. Giacobino, and C. Fabre, J. Opt. Soc. Am. B 10, 1668 (1993).
[CrossRef]

J. Mertz, T. Debuisschert, A. Heidmann, C. Fabre, and E. Giacobino, Opt. Lett. 16, 1234 (1991).
[CrossRef] [PubMed]

A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, Phys. Rev. Lett. 59, 2555 (1987).
[CrossRef] [PubMed]

E. Giacobino, C. Fabre, S. Reynaud, A. Heidmann, and R. Horowicz, in Photons and Quantum Fluctuations, E. Pike and H. Walther, eds. (Hilger, New York, 1988), p. 81.

Giacobino, E.

F. Marin, A. Bramati, V. Jost, and E. Giacobino, Opt. Commun. 140, 146 (1997).
[CrossRef]

T. Debuisschert, A. Sizmann, E. Giacobino, and C. Fabre, J. Opt. Soc. Am. B 10, 1668 (1993).
[CrossRef]

J. Mertz, T. Debuisschert, A. Heidmann, C. Fabre, and E. Giacobino, Opt. Lett. 16, 1234 (1991).
[CrossRef] [PubMed]

A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, Phys. Rev. Lett. 59, 2555 (1987).
[CrossRef] [PubMed]

E. Giacobino, C. Fabre, S. Reynaud, A. Heidmann, and R. Horowicz, in Photons and Quantum Fluctuations, E. Pike and H. Walther, eds. (Hilger, New York, 1988), p. 81.

Hai, W.

W. Hai, X. Chang, D. P. Qing, X. C. Yang, Z. Yun, and P. Kunchi, presented at the Workshop on Quantum Communications and Measurement, Hakone, Japan, September 25–30, 1996.

Hall, J.

L. A. Wu, J. Kimble, J. Hall, and H. Wu, Phys. Rev. Lett. 57, 2520 (1986).
[CrossRef] [PubMed]

Harper, C.

C. Harper and M. Levenson, Opt. Commun. 20, 107 (1977).
[CrossRef]

Heidmann, A.

J. Mertz, T. Debuisschert, A. Heidmann, C. Fabre, and E. Giacobino, Opt. Lett. 16, 1234 (1991).
[CrossRef] [PubMed]

A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, Phys. Rev. Lett. 59, 2555 (1987).
[CrossRef] [PubMed]

E. Giacobino, C. Fabre, S. Reynaud, A. Heidmann, and R. Horowicz, in Photons and Quantum Fluctuations, E. Pike and H. Walther, eds. (Hilger, New York, 1988), p. 81.

Horowicz, R.

E. Giacobino, C. Fabre, S. Reynaud, A. Heidmann, and R. Horowicz, in Photons and Quantum Fluctuations, E. Pike and H. Walther, eds. (Hilger, New York, 1988), p. 81.

Horowicz, R. J.

A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, Phys. Rev. Lett. 59, 2555 (1987).
[CrossRef] [PubMed]

Jost, V.

F. Marin, A. Bramati, V. Jost, and E. Giacobino, Opt. Commun. 140, 146 (1997).
[CrossRef]

Kasapi, S.

Kimble, H. J.

E. Polzik, J. Carri, and H. J. Kimble, Phys. Rev. Lett. 68, 3020 (1992).
[CrossRef] [PubMed]

Kimble, J.

L. A. Wu, J. Kimble, J. Hall, and H. Wu, Phys. Rev. Lett. 57, 2520 (1986).
[CrossRef] [PubMed]

Kunchi, P.

W. Hai, X. Chang, D. P. Qing, X. C. Yang, Z. Yun, and P. Kunchi, presented at the Workshop on Quantum Communications and Measurement, Hakone, Japan, September 25–30, 1996.

Lathi, S.

Levenson, M.

C. Harper and M. Levenson, Opt. Commun. 20, 107 (1977).
[CrossRef]

Li, Y.-Q.

Y.-Q. Li, P. Lynam, M. Xiao, and P. Edwards, Phys. Rev. Lett. 78, 3105 (1997).
[CrossRef]

Lynam, P.

Y.-Q. Li, P. Lynam, M. Xiao, and P. Edwards, Phys. Rev. Lett. 78, 3105 (1997).
[CrossRef]

Marin, F.

F. Marin, A. Bramati, V. Jost, and E. Giacobino, Opt. Commun. 140, 146 (1997).
[CrossRef]

Mertz, J.

Nabors, C.

C. Nabors and R. Shelby, Phys. Rev. A 44, 3266 (1991).
[CrossRef]

Polzik, E.

E. Polzik, J. Carri, and H. J. Kimble, Phys. Rev. Lett. 68, 3020 (1992).
[CrossRef] [PubMed]

Qing, D. P.

W. Hai, X. Chang, D. P. Qing, X. C. Yang, Z. Yun, and P. Kunchi, presented at the Workshop on Quantum Communications and Measurement, Hakone, Japan, September 25–30, 1996.

Reynaud, S.

A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, Phys. Rev. Lett. 59, 2555 (1987).
[CrossRef] [PubMed]

E. Giacobino, C. Fabre, S. Reynaud, A. Heidmann, and R. Horowicz, in Photons and Quantum Fluctuations, E. Pike and H. Walther, eds. (Hilger, New York, 1988), p. 81.

Shelby, R.

C. Nabors and R. Shelby, Phys. Rev. A 44, 3266 (1991).
[CrossRef]

Sizmann, A.

Wu, H.

L. A. Wu, J. Kimble, J. Hall, and H. Wu, Phys. Rev. Lett. 57, 2520 (1986).
[CrossRef] [PubMed]

Wu, L. A.

L. A. Wu, J. Kimble, J. Hall, and H. Wu, Phys. Rev. Lett. 57, 2520 (1986).
[CrossRef] [PubMed]

Xiao, M.

Y.-Q. Li, P. Lynam, M. Xiao, and P. Edwards, Phys. Rev. Lett. 78, 3105 (1997).
[CrossRef]

Yamamoto, Y.

Yang, X. C.

W. Hai, X. Chang, D. P. Qing, X. C. Yang, Z. Yun, and P. Kunchi, presented at the Workshop on Quantum Communications and Measurement, Hakone, Japan, September 25–30, 1996.

Yun, Z.

W. Hai, X. Chang, D. P. Qing, X. C. Yang, Z. Yun, and P. Kunchi, presented at the Workshop on Quantum Communications and Measurement, Hakone, Japan, September 25–30, 1996.

Appl. Phys. B (1)

E. Giacobino and C. Fabre, eds., special issue on quantum noise reduction in optical systems: experiments, Appl. Phys. B 55, 189–303 (1992).
[CrossRef]

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

C. Fabre and J. P. Pocholle, eds., special issue on χ(2) second-order nonlinear optics, J. Eur. Opt. Soc. B 9, 131–293 (1997).

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

Opt. Commun. (2)

C. Harper and M. Levenson, Opt. Commun. 20, 107 (1977).
[CrossRef]

F. Marin, A. Bramati, V. Jost, and E. Giacobino, Opt. Commun. 140, 146 (1997).
[CrossRef]

Opt. Lett. (2)

Phys. Rev. A (1)

C. Nabors and R. Shelby, Phys. Rev. A 44, 3266 (1991).
[CrossRef]

Phys. Rev. Lett. (4)

E. Polzik, J. Carri, and H. J. Kimble, Phys. Rev. Lett. 68, 3020 (1992).
[CrossRef] [PubMed]

Y.-Q. Li, P. Lynam, M. Xiao, and P. Edwards, Phys. Rev. Lett. 78, 3105 (1997).
[CrossRef]

L. A. Wu, J. Kimble, J. Hall, and H. Wu, Phys. Rev. Lett. 57, 2520 (1986).
[CrossRef] [PubMed]

A. Heidmann, R. J. Horowicz, S. Reynaud, E. Giacobino, C. Fabre, and G. Camy, Phys. Rev. Lett. 59, 2555 (1987).
[CrossRef] [PubMed]

Other (2)

W. Hai, X. Chang, D. P. Qing, X. C. Yang, Z. Yun, and P. Kunchi, presented at the Workshop on Quantum Communications and Measurement, Hakone, Japan, September 25–30, 1996.

E. Giacobino, C. Fabre, S. Reynaud, A. Heidmann, and R. Horowicz, in Photons and Quantum Fluctuations, E. Pike and H. Walther, eds. (Hilger, New York, 1988), p. 81.

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Figures (3)

Fig. 1
Fig. 1

Experimental setup.

Fig. 2
Fig. 2

Two-photon absorption signal as a function of the diode laser frequency, recorded on a 1.06-µm beam (a) produced by the OPO and (b) produced by a YAG laser of identical power.

Fig. 3
Fig. 3

Two-photon absorption signal as a function of the diode laser frequency, with the OPO signal beam in logarithmic power units. The flat trace shows the shot-noise level recorded with a YAG laser of identical power.

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