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Proceedings Paper

SESAMs for high-power femtosecond modelocking: power scaling of an Yb:LuScO3 thin disk laser to 23 W and 235 fs
Author(s): Clara J. Saraceno; Oliver H. Heckl; Cyrill R. E. Baer; Matthias Golling; Kolja Beil; Christian Kränkel; Klaus Petermann; Thomas Südmeyer; Günter Huber; Ursula Keller
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Paper Abstract

We report on power scaling of a modelocked thin disk laser (TDL) based on the broadband mixed sesquioxide material Yb:LuScO3 (22 nm full width half maximum (FWHM) emission bandwidth). In a first experiment, we could demonstrate pulse durations as short as 195 fs at a moderate average power of 9.5 W. Furthermore, we were able to power scale our TDL while keeping the pulses short reaching 23 W at a pulse duration of 235 fs. A key element to achieve this result was the design of new SESAM structures with multiple quantum wells (QW) and a suitable dielectric topcoating, resulting in SESAMs with appropriate parameters for short pulse geneartion, low two-photon absorption (TPA) and high damage thresholds. We will present SESAM optimization guidelines for short pulse generation from high-power modelocked oscillators.

Paper Details

Date Published: 15 February 2012
PDF: 7 pages
Proc. SPIE 8235, Solid State Lasers XXI: Technology and Devices, 82350Z (15 February 2012); doi: 10.1117/12.905979
Show Author Affiliations
Clara J. Saraceno, ETH Zurich (Switzerland)
Oliver H. Heckl, ETH Zurich (Switzerland)
Cyrill R. E. Baer, ETH Zurich (Switzerland)
Matthias Golling, ETH Zurich (Switzerland)
Kolja Beil, Univ. Hamburg (Germany)
Christian Kränkel, ETH Zurich (Switzerland)
Univ. Hamburg (Germany)
Klaus Petermann, Univ. Hamburg (Germany)
Thomas Südmeyer, ETH Zurich (Switzerland)
Günter Huber, Univ. Hamburg (Germany)
Ursula Keller, ETH Zurich (Switzerland)


Published in SPIE Proceedings Vol. 8235:
Solid State Lasers XXI: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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