NDLI: 63-W average power from femtosecond Yb:Lu2O3 thin disk laser

Content Provider	IEEE Xplore Digital Library
Author	Baer, C.R.E. Krankel, C. Saraceno, C.J. Heckl, O.H. Golling, M. Sudmeyer, T. Peters, R. Petermann, K. Huber, G. Keller, U.
Copyright Year	2009
Description	Author affiliation: Institute of Laser-Physics, University of Hamburg, Luruper Chaussee 149, 22761, Germany (Peters, R.; Petermann, K.; Huber, G.) \|\| Department of Physics, Institute of Quantum Electronics, ETH Zurich, 8093, Switzerland (Baer, C.R.E.; Krankel, C.; Saraceno, C.J.; Heckl, O.H.; Golling, M.; Sudmeyer, T.; Keller, U.)
Abstract	Thin disk lasers are ideally suited for high-power laser applications both in continuous-wave (cw) and pulsed operation. Several kilowatts of cw output power and femtoscond pulses with energies of more than 10 µJ have been achieved with Yb:YAG [1–3], which is the current standard material used in nearly all thin disk lasers. Since several years, new Yb-doped thin disk gain materials are developed, which target higher efficiency and shorter pulse durations. Yb:Lu2O3 is a very promising material, as its thermal conductivity remains high even for high Yb-doping concentrations. Furthermore, it has a lower quantum defect and larger emission bandwidth. Over 30 W of output power at more than 80% slope efficiency and 72% optical-to-optical efficiency have already been reported with this material [4]. Initial SESAM mode-locking experiments resulted in an average output power of 24 W and a minimal pulse duration of 370 fs [5], which is significantly shorter than the typical ≫700 fs achieved with Yb:YAG thin disk lasers.
Starting Page	1
Ending Page	1
File Size	96335
Page Count	1
File Format	PDF
ISBN	9781424440795
DOI	10.1109/CLEOE-EQEC.2009.5192627
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-14
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laser theory Power lasers Bandwidth Optical materials Optical pumping Ultrafast optics Mirrors Conducting materials Power generation Optical pulses
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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