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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 16 — Aug. 15, 2014
  • pp: 4875–4878

Remote wind sensing with a CW diode laser lidar beyond the coherence regime

Qi Hu, Peter John Rodrigo, and Christian Pedersen  »View Author Affiliations

Optics Letters, Vol. 39, Issue 16, pp. 4875-4878 (2014)

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We experimentally demonstrate for the first time (to our knowledge) a coherent CW lidar system capable of wind speed measurement at a probing distance beyond the coherence regime of the light source. A side-by-side wind measurement was conducted on the field using two lidar systems with identical optical designs but different laser linewidths. While one system was operating within the coherence regime, the other was measuring at least 2.4 times the coherence range. The probing distance of both lidars is 85 m and the radial wind speed correlation was measured to be r2=0.965 between the two lidars at a sampling rate of 2 Hz. Based on our experimental results, we describe a practical guideline for designing a wind lidar operating beyond the coherence regime.

© 2014 Optical Society of America

OCIS Codes
(010.3640) Atmospheric and oceanic optics : Lidar
(140.5960) Lasers and laser optics : Semiconductor lasers
(280.7250) Remote sensing and sensors : Velocimetry

ToC Category:
Remote Sensing and Sensors

Original Manuscript: May 20, 2014
Revised Manuscript: July 2, 2014
Manuscript Accepted: July 3, 2014
Published: August 13, 2014

Qi Hu, Peter John Rodrigo, and Christian Pedersen, "Remote wind sensing with a CW diode laser lidar beyond the coherence regime," Opt. Lett. 39, 4875-4878 (2014)

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