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Active materials for high-power fiber lasers prepared by all-solution doping technique

 
: Kuhn, S.; Möller, F.; Hupel, C.; Hein, S.; Beier, F.; Nold, J.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.

:

Jiang, Shibin ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Optical Components and Materials XV : 29-31 January 2018, San Francisco, California, United States
Bellingham, WA: SPIE, 2018 (Proceedings of SPIE 10528)
ISBN: 978-1-5106-1541-0
ISBN: 978-1-5106-1542-7
Paper 1052809, 12 pp.
Conference "Optical Components and Materials" <15, 2018, San Francisco/Calif.>
English
Conference Paper
Fraunhofer IOF ()

Abstract
We present the fabrication and properties of active fiber laser materials fabricated by a newly developed solution doping technique. The contribution focusses on Aluminum, Phosphorus, Ytterbium as well as Boron doped SiO2 for the use as fiber laser material. More specifically low doping concentration in the vicinity of the molar ratio of Al2O3:P2O5 = 1:1 will be elucidated. The effect of fabrication parameters on optical properties like refractive index, absorption and emission properties will be covered. Currently it is possible to achieve cw output powers greater than 4 kW using Al, P, Yb doped fibers fabricated with this method. Fibers additionally codoped with Boron are as well suitable for kW class applications as well.

: http://publica.fraunhofer.de/documents/N-520670.html