Femtosecond diode-pumped solid-state laser with a repetition rate of 4.8 GHz

Pekarek, Selina; Klenner, Alexander; Südmeyer, Thomas; Fiebig, Christian; Paschke, Katrin; Erbert, Götz; Keller, Ursula

doi:10.1364/OE.20.004248

Femtosecond diode-pumped solid-state laser with a repetition rate of 4.8 GHz

Author(s)

Pekarek, Selina

Klenner, Alexander

Südmeyer, Thomas

Laboratoire temps-fréquence

Fiebig, Christian

Paschke, Katrin

Erbert, Götz

Keller, Ursula

Date issued

2012

In

Optics Express, Optical Society of America

Vol

20

No

4

From page

4248

To page

4253

Abstract

We report on a diode-pumped Yb:KGW (ytterbium-doped potassium gadolinium tungstate) laser with a repetition rate of 4.8 GHz and a pulse duration of 396 fs. Stable fundamental modelocking is achieved with a semiconductor saturable absorber mirror (SESAM). The average output power of this compact diode-pumped solid state laser is 1.9 W which corresponds to a peak power of 0.9 kW and the optical-to-optical efficiency is 36%. To the best of our knowledge, this is the femtosecond DPSSL with the highest repetition rate ever reported so far.