Patent ID: 8659821

Claim:
Device ( 1 , 11 ) for amplifying light pulses ( 2 , 12 ), said device comprised of a stretcher ( 4 , 14 ) which temporally stretches the light pulses ( 2 , 12 ), and comprised of at least one amplifier ( 5 , 15 ) which amplifies the stretched light pulses ( 2 , 12 ), and comprised of a compressor ( 6 , 16 ) which recompresses the stretched and amplified light pulses ( 2 , 12 ), said stretcher ( 4 , 14 ) and said compressor ( 6 , 16 ) being dispersive elements with essentially oppositely identical dispersion, wherein the dispersion of the amplifier ( 5 , 15 ), the dispersion of further optical elements of the device ( 1 ) and/or a mismatch of dispersion of the stretcher ( 4 , 14 ) and the compressor ( 6 , 16 ) are at least partly compensated by at least one additional element ( 17 ) of variable dispersion.