By Topic

Gain saturation in CO2 laser amplifiers

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 $33
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)
R. C. Crafer ; University of Essex, Colchester, UK ; A. F. Gibson ; M. F. Kimmitt

Gain saturation in the CO2 laser system presents a limitation on the amplification of Q-switched pulses and this has been studied in some detail. With pulses of around 0.5 ¿s saturation effects are observed at power densities of order 104W cm¿2. The results of a theory of the time dependence of saturation are presented, together with supporting experimental data. This theory indicates that, at high power levels, the decrease in gain with time during the oscillator pulse can be described by the sum of two exponential decays. A value for the relaxation rate of the rotational sub-levels of the active vibrational states is obtained for various gas conditions. The implications of this relaxation rate on the design of high power oscillator/amplifier systems is discussed.

Published in:

Radio and Electronic Engineer  (Volume:38 ,  Issue: 6 )