Abstract
We present a review of new ytterbium doped crystals (Yb:GdCOB, Yb:BOYS and Yb:SYS) used to develop sub-100-fs diode-pumped oscillators at around 1 µm and a regenerative amplifier producing 380-fs, up to 100-µJ at 350-Hz.
© 2004 Optical Society of America
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