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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 16 — Aug. 11, 2014
  • pp: 18979–18986

Dual-gain SESAM modelocked thin disk laser based on Yb:Lu2O3 and Yb:Sc2O3

Cinia Schriber, Florian Emaury, Andreas Diebold, Sandro Link, Matthias Golling, Kolja Beil, Christian Kränkel, Clara J. Saraceno, Thomas Südmeyer, and Ursula Keller  »View Author Affiliations

Optics Express, Vol. 22, Issue 16, pp. 18979-18986 (2014)

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We present for the first time a SESAM-modelocked thin-disk laser (TDL) that incorporates two gain materials with different emission spectra in a single TDL resonator. The two gain media used in this experiment are the sesquioxide materials Yb:Lu2O3 and Yb:Sc2O3, which have their spectral emission peak displaced by ≈7 nm. We can benefit from a combined gain bandwidth that is wider than the one provided by a single gain material alone and still conserve the excellent thermal properties of each disk. In these first proof-of-principle experiments we demonstrate pulse durations shorter than previously achieved with the single gain material Yb:Lu2O3. The oscillator generates pulses as short as 103 fs at a repetition rate of 41.7 MHz and a center wavelength of around 1038 nm, with an average output power of 1.4 W. A different cavity layout provides pulses with a duration of 124 fs at an output power of 8.6 W. This dual-gain approach should allow for further power scaling of TDLs and these first results prove this method to be a promising new way to combine the record output-power performance of modelocked TDLs with short pulse durations in the sub-100 fs regime.

© 2014 Optical Society of America

OCIS Codes
(140.4050) Lasers and laser optics : Mode-locked lasers
(320.7090) Ultrafast optics : Ultrafast lasers
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Lasers and Laser Optics

Original Manuscript: May 21, 2014
Revised Manuscript: July 17, 2014
Manuscript Accepted: July 17, 2014
Published: July 29, 2014

Cinia Schriber, Florian Emaury, Andreas Diebold, Sandro Link, Matthias Golling, Kolja Beil, Christian Kränkel, Clara J. Saraceno, Thomas Südmeyer, and Ursula Keller, "Dual-gain SESAM modelocked thin disk laser based on Yb:Lu2O3 and Yb:Sc2O3," Opt. Express 22, 18979-18986 (2014)

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