In this paper we describe the experimental validation of the technique of correction of wavefront aberration in the middle of the laser amplifying chain. This technique allows the correction of the aberrations from the first part of the laser system, and the pre-compensation of the aberrations built in the second part. This approach will allow an effective aberration management in the laser chain, to protect the optical surfaces and optimize performances, and is the only possible approach for multi-Petawatt laser system from the technical and economical point of view. This approach is now possible after the introduction of new deformable mirrors with lower static aberrations and higher dynamic than the standard devices.
Canova, F., Canova, L., Flacco, A., Clady, R., Chambaret, J., Ple, F., et al. (2007). Wavefront correction and aberrations pre-compensation in the middle of Petawatt-class CPA laser systems. In Proceedings of SPIE - The International Society for Optical Engineering (pp.658404). 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA : SPIE-INT SOC OPTICAL ENGINEERING [10.1117/12.721581].
Wavefront correction and aberrations pre-compensation in the middle of Petawatt-class CPA laser systems
Canova F.;Canova L.;Benocci R.;Batani D.;
2007
Abstract
In this paper we describe the experimental validation of the technique of correction of wavefront aberration in the middle of the laser amplifying chain. This technique allows the correction of the aberrations from the first part of the laser system, and the pre-compensation of the aberrations built in the second part. This approach will allow an effective aberration management in the laser chain, to protect the optical surfaces and optimize performances, and is the only possible approach for multi-Petawatt laser system from the technical and economical point of view. This approach is now possible after the introduction of new deformable mirrors with lower static aberrations and higher dynamic than the standard devices.
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