Abstract

Brillouin scattering has been measured with a high degree of sensitivity by a system built around a laser-diode-pumped microchip LiNdP4O12 laser. An efficient self-mixing modulation effect that is due to the interference between a lasing field and a weak field fed back from an acousto-optic modulator by means of a phase-conjugate reflection was used. Laser-Doppler velocimetry that can discriminate the direction of motion has been demonstrated.

© 1999 Optical Society of America

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References

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  1. E. R. Pike and H. Z. Cummins, eds., Photon Correlation Spectroscopy and Velocimetry (Plenum, New York, 1977).
  2. R. Kawai, Y. Asakawa, and K. Otsuka, IEEE Photon. Technol. Lett. 11, 706 (1999).
    [CrossRef]
  3. K. Otsuka, IEEE J. Quantum Electron. QE-15, 655 (1979); Jpn. J. Appl. Phys. 31, L1546 (1992).
    [CrossRef]
  4. K. Otsuka, Appl. Opt. 33, 1111 (1994).
    [CrossRef] [PubMed]
  5. E. T. Shimizu, Appl. Opt. 26, 4541 (1987).
    [CrossRef] [PubMed]
  6. Y. R. Shen, The Principles of Nonlinear Optics (Wiley, New York, 1984), p. 187.
  7. A. Tomita, Appl. Phys. Lett. 34, 263 (1979).
    [CrossRef]
  8. K. Otsuka, Appl. Opt. 21, 744 (1982).
    [CrossRef] [PubMed]
  9. A. Brignon, L. Loiseau, C. Larat, J.-P. Huignard, and J. P. Pocholle, in Conference on Lasers and Electro-Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), paper CFI6.

1999 (1)

R. Kawai, Y. Asakawa, and K. Otsuka, IEEE Photon. Technol. Lett. 11, 706 (1999).
[CrossRef]

1994 (1)

1987 (1)

1982 (1)

1979 (2)

A. Tomita, Appl. Phys. Lett. 34, 263 (1979).
[CrossRef]

K. Otsuka, IEEE J. Quantum Electron. QE-15, 655 (1979); Jpn. J. Appl. Phys. 31, L1546 (1992).
[CrossRef]

Asakawa, Y.

R. Kawai, Y. Asakawa, and K. Otsuka, IEEE Photon. Technol. Lett. 11, 706 (1999).
[CrossRef]

Brignon, A.

A. Brignon, L. Loiseau, C. Larat, J.-P. Huignard, and J. P. Pocholle, in Conference on Lasers and Electro-Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), paper CFI6.

Huignard, J.-P.

A. Brignon, L. Loiseau, C. Larat, J.-P. Huignard, and J. P. Pocholle, in Conference on Lasers and Electro-Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), paper CFI6.

Kawai, R.

R. Kawai, Y. Asakawa, and K. Otsuka, IEEE Photon. Technol. Lett. 11, 706 (1999).
[CrossRef]

Larat, C.

A. Brignon, L. Loiseau, C. Larat, J.-P. Huignard, and J. P. Pocholle, in Conference on Lasers and Electro-Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), paper CFI6.

Loiseau, L.

A. Brignon, L. Loiseau, C. Larat, J.-P. Huignard, and J. P. Pocholle, in Conference on Lasers and Electro-Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), paper CFI6.

Otsuka, K.

R. Kawai, Y. Asakawa, and K. Otsuka, IEEE Photon. Technol. Lett. 11, 706 (1999).
[CrossRef]

K. Otsuka, Appl. Opt. 33, 1111 (1994).
[CrossRef] [PubMed]

K. Otsuka, Appl. Opt. 21, 744 (1982).
[CrossRef] [PubMed]

K. Otsuka, IEEE J. Quantum Electron. QE-15, 655 (1979); Jpn. J. Appl. Phys. 31, L1546 (1992).
[CrossRef]

Pocholle, J. P.

A. Brignon, L. Loiseau, C. Larat, J.-P. Huignard, and J. P. Pocholle, in Conference on Lasers and Electro-Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), paper CFI6.

Shen, Y. R.

Y. R. Shen, The Principles of Nonlinear Optics (Wiley, New York, 1984), p. 187.

Shimizu, E. T.

Tomita, A.

A. Tomita, Appl. Phys. Lett. 34, 263 (1979).
[CrossRef]

Appl. Opt. (3)

Appl. Phys. Lett. (1)

A. Tomita, Appl. Phys. Lett. 34, 263 (1979).
[CrossRef]

IEEE J. Quantum Electron. (1)

K. Otsuka, IEEE J. Quantum Electron. QE-15, 655 (1979); Jpn. J. Appl. Phys. 31, L1546 (1992).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

R. Kawai, Y. Asakawa, and K. Otsuka, IEEE Photon. Technol. Lett. 11, 706 (1999).
[CrossRef]

Other (3)

E. R. Pike and H. Z. Cummins, eds., Photon Correlation Spectroscopy and Velocimetry (Plenum, New York, 1977).

Y. R. Shen, The Principles of Nonlinear Optics (Wiley, New York, 1984), p. 187.

A. Brignon, L. Loiseau, C. Larat, J.-P. Huignard, and J. P. Pocholle, in Conference on Lasers and Electro-Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), paper CFI6.

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Figures (4)

Fig. 1
Fig. 1

Schematic of self-mixing LDV with a laser-diode (LD-) pumped LNP laser. Inset, schematic illustration of phase-conjugate reflection from the LNP laser.

Fig. 2
Fig. 2

Power spectra of the LNP laser coupled to two Bragg cells with AOM 2 at two different tilts. ΔfAOM=1.0 MHz. Horizontal scale, 400 kHz/division; vertical scale, 10 dB/division; fR, the relaxation oscillation frequency.

Fig. 3
Fig. 3

Power spectra indicating directional discrimination in self-mixing LDV, where ΔfAOM=1.0 MHz with phase-conjugated feedback. (a) Approaching, velocity v cos ϕ=39.6 cm/s; (b) receding, velocity v cos ϕ=-39.6 cm/s. Horizontal scale, 400 kHz/division; vertical scale, 10 dB/division; fR, relaxation oscillation frequency.

Fig. 4
Fig. 4

Power spectra indicating directional discrimination in self-mixing LDV, where ΔfAOM=1.0 MHz without phase-conjugate feedback. (a) Approaching, velocity v cos ϕ=26.4 cm/s; (b) receding, velocity v cos ϕ=-26.4 cm/s. Horizontal scale, 200 kHz/division; vertical scale, 10 dB/division.

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