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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 6 — Feb. 20, 2002
  • pp: 1145–1155

Two-channel direct-detection Doppler lidar employing a charge-coupled device as a detector

Todd D. Irgang, Paul B. Hays, and Wilbert R. Skinner  »View Author Affiliations


Applied Optics, Vol. 41, Issue 6, pp. 1145-1155 (2002)
http://dx.doi.org/10.1364/AO.41.001145


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Abstract

A direct-detection Doppler lidar system is demonstrated that uses a CCD as a detector for the first time to our knowledge. The ability to use this linear device with the circular output from a Fabry-Perot etalon comes from use of a circle-to-line converter [Appl. Opt. 29, 1482 (1990)]. In addition to the gains in quantum efficiency obtained through use of this detector, the lidar system described in this paper also has the capability to measure winds from aerosol and molecular backscatter simultaneously in two separate channels by directing the light reflected from one channel into the other. Early measurements with this system are presented; it is shown that, although accurate aerosol wind measurements are easily obtained, molecular measurements require a carefully calibrated inverse model and special hardware to derive accurate wind measurements with this channel.

© 2002 Optical Society of America

OCIS Codes
(010.3640) Atmospheric and oceanic optics : Lidar
(040.1520) Detectors : CCD, charge-coupled device
(050.2230) Diffraction and gratings : Fabry-Perot
(280.1100) Remote sensing and sensors : Aerosol detection
(280.3640) Remote sensing and sensors : Lidar

History
Original Manuscript: June 25, 2001
Revised Manuscript: October 17, 2001
Published: February 20, 2002

Citation
Todd D. Irgang, Paul B. Hays, and Wilbert R. Skinner, "Two-channel direct-detection Doppler lidar employing a charge-coupled device as a detector," Appl. Opt. 41, 1145-1155 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-6-1145

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