Abstract
In this paper a method for obtaining a high-power ultrashort pulse with ultrabroad bandwidth has been investigated. A theoretical investigation of the propagation and supercontinuum generation of the highly chirped pulse having been stretched and amplified are presented by numerical simulations in microstructured optical fiber. Comparing with the case of a chirp-free pulse, a chirped pulse with the same peak power and initial bandwidth can produce a broader supercontinuum spectrum with higher average power. After a felicitous compression, a high power ultrashort pulse that has an ultrabroad bandwidth much larger than that of the pump pulse can be produced.
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