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Compensation of nonlinear self-focusing in high-power lasers

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5 Author(s)
Roth, U. ; Inst. of Appl. Phys., Bern Univ., Switzerland ; Loewenthal, F. ; Tommasini, R. ; Balmer, J.E.
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We report on experimental results and the numerical modeling of the compensation of nonlinear self-focusing effects occurring in a high-power Nd:glass laser system at intensities above 1 GW/cm/sup 2/. A GaAs wafer with a negative nonlinear refractive index was used for the cancellation of the accumulated phase difference along the beam direction in a nonlinear medium (B integral). A numerical model is developed to calculate the behavior of the experimental setup.

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Quantum Electronics, IEEE Journal of  (Volume:36 ,  Issue: 6 )