Abstract
The main technological challenge of achieving 10’s of watts of average power from a fiber based ultrashort-pulse system is essentially determined by the limited pulsed peak-powers in a fiber core. Indirectly, this limitation also sets significant constrains on the fiber amplifier pumping, since the limited pulse-propagation length also limits pump-power absorption in a fiber amplifier. As a result, all previous high-power femtosecond fiber systems has been limited to ~ 1 - 2 W of average power [1], [2].
© 2000 Optical Society of America
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