Abstract

We built a direct-detection Doppler lidar based on the double-edge molecular technique and made the what we believe to be the first molecular-based wind measurements using the eye-safe 355-nm wavelength. Three etalon bandpasses are obtained with step etalons on a single pair of etalon plates. We eliminate long-term frequency drift of the laser and the capacitively stabilized etalon by locking the etalon to the laser frequency. We use a low-angle design to avoid polarization effects. Wind measurements of 12m/s accuracy are obtained to 10-km altitude with 5 mJ of laser energy, a 750-s integration, and a 25-cm telescope. Good agreement is obtained between lidar and rawinsonde measurements.

© 2000 Optical Society of America

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References

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1999 (1)

1998 (1)

1997 (2)

1992 (2)

1990 (1)

1989 (1)

M. L. Chanin, A. Garnier, A. Hauchecorne, and J. Porteneuve, Geophys. Res. Lett. 16, 1273 (1989).
[CrossRef]

1985 (1)

R. Atlas, E. Kalnay, and M. Halem, Opt. Eng. 24, 341 (1985).
[CrossRef]

1979 (1)

1974 (1)

G. Tenti, C. D. Boley, and R. D. Desai, Can. J. Phys. 52, 285 (1974).

Abreu, V. J.

Atlas, R.

R. Atlas, E. Kalnay, and M. Halem, Opt. Eng. 24, 341 (1985).
[CrossRef]

Boley, C. D.

G. Tenti, C. D. Boley, and R. D. Desai, Can. J. Phys. 52, 285 (1974).

Chanin, M. L.

A. Garnier and M. L. Chanin, Appl. Phys. B 55, 35 (1992).
[CrossRef]

M. L. Chanin, A. Garnier, A. Hauchecorne, and J. Porteneuve, Geophys. Res. Lett. 16, 1273 (1989).
[CrossRef]

Desai, R. D.

G. Tenti, C. D. Boley, and R. D. Desai, Can. J. Phys. 52, 285 (1974).

Flesia, C.

Garnier, A.

A. Garnier and M. L. Chanin, Appl. Phys. B 55, 35 (1992).
[CrossRef]

M. L. Chanin, A. Garnier, A. Hauchecorne, and J. Porteneuve, Geophys. Res. Lett. 16, 1273 (1989).
[CrossRef]

Gentry, B.

Gentry, B. M.

Halem, M.

R. Atlas, E. Kalnay, and M. Halem, Opt. Eng. 24, 341 (1985).
[CrossRef]

Hauchecorne, A.

M. L. Chanin, A. Garnier, A. Hauchecorne, and J. Porteneuve, Geophys. Res. Lett. 16, 1273 (1989).
[CrossRef]

Irgang, T. D.

Kalnay, E.

R. Atlas, E. Kalnay, and M. Halem, Opt. Eng. 24, 341 (1985).
[CrossRef]

Korb, C. L.

Li, S. X.

McDermid, I. S.

McGill, M. J.

Porteneuve, J.

M. L. Chanin, A. Garnier, A. Hauchecorne, and J. Porteneuve, Geophys. Res. Lett. 16, 1273 (1989).
[CrossRef]

Rees, D.

Skinner, W. R.

Tenti, G.

G. Tenti, C. D. Boley, and R. D. Desai, Can. J. Phys. 52, 285 (1974).

Weng, C.

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Figures (3)

Fig. 1
Fig. 1

Double-edge measurement of Doppler shifts Δν of the Rayleigh–Brillouin profile with the laser at frequency νl and the two edge filters at frequencies ν1 and ν2.

Fig. 2
Fig. 2

Optical layout of the detector package: EM, energy monitor; PMT’s, photomultiplier detectors; BS’s, beam splitters.

Fig. 3
Fig. 3

Comparison of double-edge lidar wind measurements with 5-mJ laser energy, with standard deviation shown by the bars, and rawinsondes for (a) March 27, 1998, with 22,500 shots and (b) March 29, 1998, with 10,000 shots.

Tables (1)

Tables Icon

Table 1 Experiment Parameters

Equations (3)

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1Riνi,νlddνRiνi,νl=1Tiνl-νiddνTiνl-νi
Riνi,νl+Δν=-Tiν-νiIRν-νl-Δνdν.
ν=1θR-RvRv,

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