Abstract
We report on the generation of ultra-broadband radiation using the Chirped-pulse oscillator (CPO) concept. Pulse energies in excess of 200 nJ could be demonstrated directly out of a Kerr-lens-mode-locked Ti:sapphire oscillator. By spectral broadening of these pulses in a standard single-mode fibre, output spectra corresponding to a Fourier-limited pulse duration of 5,7 fs at an energy of 40 nJ could be achieved.
© 2004 Optical Society of America
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