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Single—Mode All—Solid—State Water—Vapor and Temperature DIAL System

  • Volker Wulfmeyer
  • Jens Bösenberg
Conference paper

Abstract

An all—solid—state DIAL system is introduced which produces single—mode laser pulses with a frequency stability of 15 MHz rms and a bandwidth of < 40 MHz. The high performance of this DIAL system makes narrow—band detection of the backscatter signal possible in order to avoid errors caused by Doppler broadening of the backscatter signal.

Water—vapor measurements are presented and analyzed. An error of < 5% in the whole troposphere caused by laser properties can be specified. The statistical error is < 0.16 g/m3 at a height resolution of 75 m and a time resolution of 1 min up to 2 km. Accordingly this system is suitable for water—vapor flux measurements in the convective boundary layer. Precise measurements of water—vapor profiles in the whole troposphere during day- and nighttime are now possible.

Keywords

Backscatter Signal Slave Laser Master Laser Height Resolution Dial System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    O’C. Starr, D., Melfi S. H, The role of water vapor in climate. Nasa Conference Publication 3120 (1991)Google Scholar
  2. 2.
    Wulfmeyer, V., Bösenberg, J., Lehmann, S., Senff, C., Schmitz, S.: Injection-seeded alexandrite ring laser: performance and application in a water-vapor differential absorption lidar. Opt. Lett. 20 (1995) 638ADSCrossRefGoogle Scholar
  3. 3.
    Wulfmeyer, V., Bösenberg, J.: Single-mode operation of an injection-seeded alexandrite ring laser for application in water-vapor and temperature differential absorption lidar. Accepted for publication in Opt. Lett.Google Scholar
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    Wulfmeyer, V.: DIAL-Messungen von vertikalen Wasserdampfverteilungen. Thesis University of Hamburg 1995Google Scholar
  5. 5.
    Bösenberg, J.: Doppler broadening of Rayleigh backscatter: How important is it for water-vapor and temperature DIAL? 18th International Laser Radar Conference Berlin Germany (1996)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • Volker Wulfmeyer
    • 1
  • Jens Bösenberg
    • 1
  1. 1.Max-Planck-Institut für MeteorologieHamburgGermany

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