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Laser-Induced Efficiency Improvement for Thulium-doped Fiber Laser Systems

: Jauregui, Cesar; Stutzki, Fabian; Jansen, Florian; Limpert, Jens; Tünnermann, Andreas


Optical Society of America -OSA-, Washington/D.C.:
Advanced Solid State Lasers, ASSL 2013 : October 27, 2013 - November 1, 2013, Paris, France
Washington, DC: OSA, 2013 (OSA Technical digest series)
ISBN: 978-1-55752-982-4
Paper JTh2A.37
Conference "Advanced Solid State Lasers" (ASSL) <2013, Paris>
Topical Meeting "Application of Lasers for Sensing & Free Space Communication" (LS&C) <2013, Paris>
Conference Paper
Fraunhofer IOF ()

In this paper it is shown that pumping at the excited state of Thulium high-power fibers leads to a significant cooling and efficiency improvement. Nearly a factor 2 higher efficiency is expected with this technique.