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Air-clad large-mode-area photonic crystal fibers: Power scaling concepts up to the multi-kW range

 
: Liem, A.; Limpert, J.; Schreiber, T.; Nolte, S.; Zellmer, H.; Tünnermann, A.; Peschel, T.; Guyenot, V.; Broeng, J.; Vienne, G.; Petersson, A.; Jakobsen, C.; Reichel, V.; Unger, S.

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Durvasula, L.N. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Fiber lasers: Technology, systems, and applications : 26 - 28 January 2004, San Jose, California, USA
Bellingham/Wash.: SPIE, 2004 (SPIE Proceedings Series 5335)
ISBN: 0-8194-5243-2
pp.158-169
Conference "Fiber Lasers: Technology, Systems, and Applications" <2004, San Jose/Calif.>
English
Conference Paper
Fraunhofer IOF ()

Abstract
Most recently the output power of fiber lasers with diffraction limited beam quality has been significantly increased. Further power scaling is usually limited by damage of the fiber end facets, thermo-optical problems or nonlinear effects. Microstructuring the fiber adds several preferable features to the fiber to overcome these restrictions. We review the advantages of rare-earth-doped photonic crystal fibers for power scaling of fiber lasers to the multi kW range with excellent beam quality.

: http://publica.fraunhofer.de/documents/N-27176.html