Optimization of the alexandrite laser tuning elements for a water vapor lidarAn overview of some of the developments completed on an alexandrite laser for making water vapor DIAL measurements is presented in this paper. A computer control for active stabilization of the two intracavity etalons has been implemented and recently tested in an aircraft environment. Long-term frequency drift (i.e., 2 hours) of less than 0.7 pm has been observed in the laboratory. An alignment technique to get the optimum free spectral range ratio for the two etalons is also developed.
Document ID
19910040191
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ponsardin, Patrick (Old Dominion Univ. Norfolk, VA, United States)
Grossmann, Benoist E. (Old Dominion University Research Foundation, Norfolk, VA, United States)
Higdon, Noah S. (Old Dominion Univ. Norfolk, VA, United States)
Browell, Edward V. (NASA Langley Research Center Hampton, VA, United States)