Diode-pumped 99 fs Yb : CaF2 oscillator
Résumé
We demonstrate the generation of 99 fs pulses by a mode-locked laser oscillator built around a Yb:CaF2 crystal. An average power of 380 mW for a 13 nm bandwidth spectrum centered at 1053 nm is obtained. The short-pulse operation is achieved thanks to a saturable absorber mirror and is stabilized by the Kerr lens effect. We investigated the limits of the stabilization process and observed a regime slowly oscillating between mode locking and Q switching.
Domaines
Optique [physics.optics]| Origine | Fichiers éditeurs autorisés sur une archive ouverte |
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