This article is cited in 10 papers

Control of laser radiation parameters

Alignment of chirped-pulse compressor

I. V. Yakovlev

Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod

Abstract: An original method of alignment of grating compressors for ultrahigh-power CPA laser systems is proposed. The use of this method for adjustment of the grating compressor of a PEARL subpetawatt laser complex made it possible to align the diffraction gratings with a second accuracy in all three angular degrees of freedom, including alignment of the grooves, and to adjust the angles of beam incidence on the grating with a high accuracy. A simple method for measuring the difference in the groove densities of gratings with accuracy better than 0.005 lines mm^-1 is proposed and tested.

Keywords: chirped-pulse amplification, petawatt lasers, stretcher, compressor, angular dispersion, tiled gratings.

PACS: 42.65.Re, 42.60.By, 42.79.Dj

Received: 04.07.2012

 English version: Quantum Electronics, 2012, 42:11, 996–1001

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