CO_2 coherent differential absorption LIDAR

摘要

Experimental chemcial detection and radiometric results are presented from recent coherent differential absorption lidar (DIAL) ground tests conducted over four kilometer horizontal path at the Air Force Research Laboratory (AFRL). Heterodyne data was collected simultaneously with the Laser Airborne Remote Sensing (LARS) direct detection IDAL sensor for comparison. A brief systme description fothe distatic coherent DIAL systme is presented. These experiments illustrate some of the technological challenges encountered in the implemnetation of a wavelength-agile coherent chemcial detection system.