Spatial and temporal fluctuations of nanosecond radiation pulses in CO2 amplifiers

Results are presented of the numerical solution of a complete system of equations to describe the propagation of pulses of 10^–9–10^–7 sec duration in CO₂ amplifiers, allowing for intra- and intermode relaxation processes and relaxation of the polarization. It is shown that coherence effects exert an appreciable influence on the space-time profile of the signal being amplified. Various limiting cases are analyzed.