By Topic

Electrooptic Q switching of the CO2laser

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

3 Author(s)
G. Day ; National Bureau of Standards, Boulder, Colo. ; O. Gaddy ; K. Jungling

Basic characteristics of an electrooptically Q -switched CO2laser are given in this paper. Studies of the dynamics of Q switching using this system are compared with solutions of classical rate equations, clarifying the role of various processes in determining the output characteristics. Q switching was obtained with an intracavity GaAs modulator crystal. Outputs similar to those of other switching techniques are obtained but with greater time control and somewhat greater amplitude stability. The pulse shape and the delay between switching and pulse development are independent of the manner in which switching was obtained, due to the fast ( < 1 ns) switching capability of this technique. Data on the dependence of these parameters on cavity losses are given. Comparison of these data with solutions of rate equations shows that stimulated emission and resonator losses alone are important in early pulse development. However, to describe adequately the entire pulse shape, it is shown that the effect of rotational thermalization in the CO2molecule must be included in the rate equations.

Published in:

IEEE Journal of Quantum Electronics  (Volume:6 ,  Issue: 9 )