The kinetic model of fast-flow CO2-laser is represented. The dependences of the output power and the efficiency of such
CO2-laser on the pumping power are considered. The role of the active medium temperature and its fast flow in obtaining
the maximal laser efficiency are discussed. The selectivity of pumping and excitation rate of the upper laser level are the
main parameters defining the efficiency of the fast-flow CO2-lasers is shown.
The technique which makes it possible to simultaneously determine the temperature T and the partial pressure of carbon
dioxide in a vibrationally equilibrium gas mixture at atmospheric pressure by using the spectral distribution of the
unsaturated absorption coefficient at the oscillation lines of a tunable CO2 laser is presented. The results of model
calculations of the influence of H20 molecules upon the precision of determining temperature and partial pressure of
CO2 in C02:N2:H20=10:80: 10 mixture at full pressure 1 atm and temperature T=l000 K have given.
Some types of regular and chaotic passive Q switching regimes round several steady points in CO2 laser with methanol as saturable absorber are obtained experimentally and theoretical model to explain their appearance is proposed. Phase portraits and the first peak intensity return maps are used to analyze them. Complicated regular regimes with some types of dynamics between two or three steady states for two longitudinal modes are considered both with and without intensive giant pulse between oscillations of each of modes. Some kinds of chaos round several points are proposed and reasons for their appearance are discussed.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.