Propagation of an emission pulse with a wavelength of 10.6 microns in amplifying media
Abstract
The nonstationary self-consistent problem of the propagation of a collimated Gaussian beam through the amplifying medium CO2-N2-He is analyzed numerically with allowance for the nonlinear effects arising during resonant light amplification. It is shown that in the case of long pulses (the pulse duration is greater than the characteristic hydrodynamic time of the problem), thermal self-defocusing of the amplified beam may occur even for short beam paths. This effect can be reduced by reducing the pulse length.
- Publication:
-
PMTF Zhurnal Prikladnoi Mekhaniki i Tekhnicheskoi Fiziki
- Pub Date:
- April 1985
- Bibcode:
- 1985PMTF........30L
- Keywords:
-
- Gas Lasers;
- Infrared Lasers;
- Laser Modes;
- Laser Outputs;
- Power Gain;
- Pulse Duration;
- Carbon Dioxide Lasers;
- Collimation;
- Gas Mixtures;
- Helium;
- Mathematical Models;
- Molecular Relaxation;
- Nitrogen Lasers;
- Normal Density Functions;
- Pulsed Lasers;
- Thermal Blooming;
- Lasers and Masers