The saturation characteristics of pulse amplification in an ytterbium-doped fiber are studied. The highest pulse energy obtained is 12 µJ at a repetition rate of 1 kHz. Even with gain narrowing, the fiber is capable of amplifying the bandwidth of 100-fs pulses at 1 µm.
© 1996 Optical Society of America
D. T. Walton, J. Nees, and G. Mourou, "Broad-bandwidth pulse amplification to the 10-µJ level in an ytterbium-doped germanosilicate fiber," Opt. Lett. 21, 1061-1063 (1996)