High peak power sub-60 fs Yb: KGW laser

R. Akbari, K. A. Fedorova, E. U. Rafailov, A. Major

Research output: Chapter in Book/Published conference outputConference publication


A high power sub-60 fs mode-locked diode-pumped Yb: KGW laser based on hybrid action of an InGaAs quantum-dot saturable absorber mirror and Kerr-lens mode locking was demonstrated. The laser delivered 56 fs pulses with 1.95 W of average power corresponding to 450 kW of peak power. The spectral bandwidth of the pulse was 20.5 nm, which was near the gain bandwidth limit of the Yb:KGW crystal. To the best of our knowledge, these are the shortest pulses generated from the monoclinic double tungstate crystals (and Yb:KGW laser crystal in particular) and the most powerful in the sub-60 fs regime. At the same time they are also the shortest pulses produced to date with the help of a quantum-dot-based saturable absorber.

Original languageEnglish
Title of host publication2017 Photonics North, PN 2017
ISBN (Electronic)9781538621929
Publication statusPublished - 2 Nov 2017
Event2017 Photonics North, PN 2017 - Ottawa, Canada
Duration: 6 Jun 20178 Jun 2017


Conference2017 Photonics North, PN 2017

Bibliographical note

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  • diode-pumped laser
  • femtosecond pulses
  • passive mode locking
  • Yb-doped crystal


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