By Topic

Scaling generalizations for a CO electric laser

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
W. Lacina ; Northrop Research and Technology Center, Hawthorne, CA, USA ; G. McAllister

Several scaling generalizations for a high-pressure CO electric-discharge laser (EDL) are presented and compared with experimental data from a pulsed e--beam-stabilized device. It is shown that the transient evolution of the CO laser medium is mainly dependent only upon the total energy deposition per CO molecule as a function of time. Results of theoretical calculations for CO/Ar mixtures are presented which show that, for temperatures 100-300 K, laser threshold occurs after E/p_{CO} \sim 0.5 - 1.0 J/1/torr (CO) has been deposited, and that steady state is attained after E/p_{CO} \sim 1.7 - 2.6 J/1/torr (CO) has been deposited, Experimental results for a variety of CO/Ar and CO/N2mixtures confirm these predictions for a range of excitation rates. These generalizations make it possible to predict the temporal power characteristics of a large class of both pulsed and flowing CW CO lasers without resort to extensive computer calculations. Characterization of the gain saturation as a function of total radiation intensity was also investigated. Results indicate that, after attainment of steady state, the CO EDL saturates with threshold level like a simple two-level system, with a scaled saturation intensity of I_{sat}\xi/p_CO^{2} \sim 0.6 = 6.4 W/cm2/torr2(CO) over the range of temperatures from 60 to 300 K ( \xi is the fraction of CO self-broadening to total broadening).

Published in:

IEEE Journal of Quantum Electronics  (Volume:11 ,  Issue: 6 )