Abstract : We have modelled a continuously pumped Nd:YAG actively Q-switched by a variable interferometric mirror made up of a scanning Michelson or Fabry–Pérot mirror. We have characterised the three-mirror laser dynamics by using a bifurcation diagram constructed from the plot of peak power-enhancement factor as a function of mirror speed. One observes different chaotic windows separated by period-doubling bifurcations, and stable periodic regime. It is demonstrated that the best performance of the Q-switched laser is obtained rather for low than for high mirror speed (pulse width of 20 ns, and high peak power up to 400 times greater than the continuous emission).
https://hal-cea.archives-ouvertes.fr/cea-00324545
Contributor : Chantal Brassy <>
Submitted on : Thursday, September 25, 2008 - 1:23:43 PM Last modification on : Thursday, January 14, 2021 - 9:45:24 AM