Ell, R; Morgner, U; Kartner, F; Fujimoto, Masayuki Y; Ippen, E; Scheuer, V; Angelow, G; Tschudi, T; Lederer, Maximilian; Boiko, A; Luther-Davies, Barry
Spectra extending from 600 to 1200 nm have been generated from a Kerr-lens mode-locked Ti:sapphire laser producing 5-fs pulses. Specially designed double-chirped mirror pairs provide broadband controlled dispersion, and a second intracavity focus in a glass plate provides additional spectral broadening. These spectra are to our knowledge the broadest ever generated directly from a laser oscillator.
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