A Micropulse eye-safe all-fiber molecular backscatter coherent temperature lidar
1 Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA
2 Department of Aerospace Engineering Sciences, University of Colorado Boulder, Boulder, Colorado, USA
3 National Center for Atmospheric Research, Earth Observing Lab, Boulder, CO, USA
4 Department of Wind Energy, Technical University of Denmark, Roskilde, Denmark
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Published online: 7 June 2016
In this paper, we analyze the performance of an all-fiber, micropulse, 1.5 μm coherent lidar for remote sensing of atmospheric temperature. The proposed system benefits from the recent advances in optics/electronics technology, especially an all-fiber image-reject homodyne receiver, where a high resolution spectrum in the baseband can be acquired. Due to the presence of a structured spectra resulting from the spontaneous Rayleigh-Brillouine scattering, associated with the relevant operating regimes, an accurate estimation of the temperature can be carried out. One of the main advantages of this system is the removal of the contaminating Mie backscatter signal by electronic filters at the baseband (before signal conditioning and amplification). The paper presents the basic concepts as well as a Monte-Carlo system simulation as the proof of concept.
© Owned by the authors, published by EDP Sciences, 2016
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