Large-aperture grating tiling by interferometry for petawatt chirped-pulse-amplification systems.
A tiled-grating assembly with three large-scale gratings is developed with real-time interferometric tiling control for the OMEGA EP Laser Facility. An automatic tiling method is achieved and used to tile a three-tile grating assembly with the overall wavefront reconstructed. Tiling-parameters sensitivity and focal-spot degradation from all combined tiling errors are analyzed for a pulse compressor composed of four such assemblies.
Qiao
J
J
Kalb
A
A
Guardalben
M J
MJ
King
G
G
Canning
D
D
Kelly
J H
JH