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Modelling of a Nd:YAG laser Q-switched by a scanning interferometric mirror

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).
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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, February 7, 2019 - 5:31:00 PM

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  • HAL Id : cea-00324545, version 1

Citation

Karim Battou, Omar Ziane, Kamel Aït Ameur. Modelling of a Nd:YAG laser Q-switched by a scanning interferometric mirror. Optics Communications, Elsevier, 2008, 281, pp.696-704. ⟨cea-00324545⟩

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