Coherent differential absorption lidar measurements of CO2.

  title={Coherent differential absorption lidar measurements of CO2.},
  author={Grady J. Koch and Bruce Barnes and Mulugeta Petros and Jeffrey Y. Beyon and Farzin Amzajerdian and Jirong Yu and R Eric Davis and Syed Ismail and Stephanie A. Vay and Michael J. Kavaya and Upendra N. Singh},
  journal={Applied optics},
  volume={43 26},
A differential absorption lidar has been built to measure CO2 concentration in the atmosphere. The transmitter is a pulsed single-frequency Ho:Tm:YLF laser at a 2.05-microm wavelength. A coherent heterodyne receiver was used to achieve sensitive detection, with the additional capability for wind profiling by a Doppler technique. Signal processing includes an algorithm for power measurement of a heterodyne signal. Results show a precision of the CO2 concentration measurement of 1%-2% 1sigma… CONTINUE READING
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