Accession Number:

AD0760231

Title:

Dynamics of the CO2 Atmospheric Pressure Laser with Transverse Pulse Excitation,

Descriptive Note:

Corporate Author:

DEFENCE RESEARCH ESTABLISHMENT VALCARTIER QUEBEC

Report Date:

1972-06-29

Pagination or Media Count:

14.0

Abstract:

The dynamical processes responsible for laser emission in the pulsed pumping of a transversely excited atmospheric TEA CO2 laser are investigated. An explanation for the formation of the giant pulse is proposed on the basis of a gain-switching mechanism in which it is assumed that with short strong-current pulses a high population inversion can be achieved prior to the onset of laser action. The kinetics of the mechanism are described by means of a set of nonlinear rate equations idealized to a four-energy-state system. With suitable initial conditions on the populations, the transient solution of these equations for the mixtures CO2-He and CO2-He appears to be consistent with the major features of experimental observation. Author

Subject Categories:

  • Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE