146W continuous wave ytterbium doped fiber amplifier at 1009 nm

F. Beier; H.-J. Otto; B. Sattler; M. Ploetner; N. Haarlammert; O. de Vries; C. Jauregui; T. Schreiber; J. Limpert; R. Eberhardt; A. Tünnermann

doi:10.1117/12.2039844

12 March 2014 146W continuous wave ytterbium doped fiber amplifier at 1009 nm

F. Beier, H.-J. Otto, B. Sattler, M. Ploetner, N. Haarlammert, O. de Vries, C. Jauregui, T. Schreiber, J. Limpert, R. Eberhardt, A. Tünnermann

Author Affiliations +

Proceedings Volume 8961, Fiber Lasers XI: Technology, Systems, and Applications; 89610W (2014) https://doi.org/10.1117/12.2039844
Event: SPIE LASE, 2014, San Francisco, California, United States

Abstract

In this contribution we demonstrate a single mode continuous wave laser amplifier with 146 W of power at a wavelength of 1009 nm. On one hand this experiments constitutes an extension of the wavelength range of high power fiber lasers, furthermore, emission wavelength well below 1030 nm find use for efficient high-brightness tandem pumping of high power fiber amplifiers. The wavelength and bandwidth of the seed oscillator are defined by a pair of fiber Bragg gratings. This seed is amplified in a two-stage Ytterbium-doped rod-type amplifier to 146 W with a high slope efficiency of 64 %, an excellent beam quality and an ASE-suppression as high as 63 dB.

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F. Beier, F. Beier, H.-J. Otto, H.-J. Otto, B. Sattler, B. Sattler, M. Ploetner, M. Ploetner, N. Haarlammert, N. Haarlammert, O. de Vries, O. de Vries, C. Jauregui, C. Jauregui, T. Schreiber, T. Schreiber, J. Limpert, J. Limpert, R. Eberhardt, R. Eberhardt, A. Tünnermann, A. Tünnermann, "146W continuous wave ytterbium doped fiber amplifier at 1009 nm", Proc. SPIE 8961, Fiber Lasers XI: Technology, Systems, and Applications, 89610W (12 March 2014); doi: 10.1117/12.2039844; https://doi.org/10.1117/12.2039844

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