We have developed a femtosecond laser chain that generates 25-TW pulse
s of less than 35 fs at 10 Hz with focused intensities higher than 5 x
10(19) W/cm(2) and an average power of 8 W. This system is optimized
for a broad transmission bandwidth and includes an aberration-free str
etcher compressor. (C) 1996 Optical Society of America.