3D modeling of amplification processes in CPA laser amplifiers

We present here chirped pulse amplification simulations allowing for the extension of the generally used 1D model. The importance of the beam spatial profiles, diffraction and thermal effects in simulations is clearly shown in order to describe with accuracy the gain saturation. Experimental measure...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2005-05, Vol.80 (6), p.661-667
Main Authors: PLANCHON, T. A, BURGY, F, ROUSSEAU, J.-P, CHAMBARET, J.-P
Format: Article
Language:English
Subjects:
Amplification
Beams (radiation)
Computer simulation
Design of specific laser systems
Diffraction
Dispersions
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Laser optical systems: design and operation
Lasers
Mathematical models
Nonlinear optics
Optics
Physics
Resonators, cavities, amplifiers, arrays, and rings
Three dimensional
Ultrafast processes
optical pulse generation and pulse compression
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Summary:We present here chirped pulse amplification simulations allowing for the extension of the generally used 1D model. The importance of the beam spatial profiles, diffraction and thermal effects in simulations is clearly shown in order to describe with accuracy the gain saturation. Experimental measurements performed on a 100 TW laser validate this calculation. The effects of dispersion and self-focusing are also studied.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-005-1787-4