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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 37, Iss. 6 — Mar. 15, 2012
  • pp: 1073–1075

26 mJ, 130 W Q-switched fiber-laser system with near-diffraction-limited beam quality

Fabian Stutzki, Florian Jansen, Andreas Liem, Cesar Jauregui, Jens Limpert, and Andreas Tünnermann  »View Author Affiliations


Optics Letters, Vol. 37, Issue 6, pp. 1073-1075 (2012)
http://dx.doi.org/10.1364/OL.37.001073


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Abstract

We demonstrate a Q-switched fiber laser system emitting sub-60 ns pulses with 26 mJ pulse energy and near-diffraction-limited beam quality (M2<1.3). In combination with a repetition rate of 5 kHz, a corresponding average output power of 130 W is achieved. This record performance is enabled by a large-pitch fiber with a core diameter of 135 µm. This fiber allows for effective single-mode operation with mode field diameters larger than 90 µm even at average output powers exceeding 100 W.

© 2012 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3510) Lasers and laser optics : Lasers, fiber
(060.5295) Fiber optics and optical communications : Photonic crystal fibers
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: December 14, 2011
Revised Manuscript: January 20, 2012
Manuscript Accepted: January 20, 2012
Published: March 12, 2012

Citation
Fabian Stutzki, Florian Jansen, Andreas Liem, Cesar Jauregui, Jens Limpert, and Andreas Tünnermann, "26 mJ, 130 W Q-switched fiber-laser system with near-diffraction-limited beam quality," Opt. Lett. 37, 1073-1075 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-6-1073


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