Broad-bandwidth pulse amplification to the 10-microJ level in an ytterbium-doped germanosilicate fiber.
The saturation characteristics of pulse amplification in an ytterbium-doped fiber are studied. The highest pulse energy obtained is 12 microJ 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 microm.
Walton
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DT
Nees
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J
Mourou
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G