Paper
14 October 2005 Alignment of a multigrating mosaic compressor in a PW-class CPA-laser
M. Hornung, R. Bödefeld, M. Siebold, S. Podleska, M. Schnepp, J. Hein, R. Sauerbrey
Author Affiliations +
Abstract
The coherent adding (tiling) of gratings is a promising alternative to large single gratings for highest-power CPA lasers. However, in order to obtain both temporally and spatially undistorted beam profiles it is necessary to align the mosaic gratings accurately to less than λ/20 with respect to one another. This paper is aimed at a thorough description of the alignment procedure, which uses both spatial and temporal properties of the laser beam to detect grating misalignments. The main emphasis lies within the analysis of the k-space, which becomes accessible by focussing the compressed laser-pulse or a monochromatic alignment laser, respectively. We present the effect of grating misalignments on both focal area and near field by propagating continuous-wave, monochromatic laser light through a misaligned tiled grating compressor.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Hornung, R. Bödefeld, M. Siebold, S. Podleska, M. Schnepp, J. Hein, and R. Sauerbrey "Alignment of a multigrating mosaic compressor in a PW-class CPA-laser", Proc. SPIE 5962, Optical Design and Engineering II, 59622K (14 October 2005); https://doi.org/10.1117/12.624806
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Cited by 6 scholarly publications.
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KEYWORDS
Diffraction gratings

Near field

Diffraction

Beam splitters

Mirrors

Continuous wave operation

Light wave propagation

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