Infrared differential absorption lidar (DIAL) system for monitoring atmospheric pollution

The Y3Al5O12:Er3+-laser-pumped CdSe parametric light generator with improved output characteristic was developed. Its output power was 16 and 23 kW in the 8 - 13 and 3.8 - 4.6 micrometers range respectively. Four CdSe crystals with different orientating provided a continuous wavelength tuning from 8 to 13 micrometers . The parametric light generator was employed in the design of prototype DIAL system intended for a remote gas analysis of atmospheric pollutants along a 80 m path. The result obtained from testing the DIAL system are reported.© (1993) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.