Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 24, Issue 20, Pages 1864-1867Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2012.2217487
Keywords
All-fiber pump light combiner; single-frequency; stimulated Brillouin scattering; ytterbium fiber amplifier
Funding
- Albert Einstein Institute, Hannover
- German Research Foundation
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We present a single frequency ytterbium-doped fiber amplifier, counter-propagation pumped with an all-fiber pump and signal combiner. The fiber combiner is capable of handling 440 W of pump power as well as the maximum achieved output power of 301 W. The threshold of stimulated Brillouin scattering of the high-power fiber amplifier was shifted from 175 to 280 W by external thermal management in combination with the pump-induced intrinsic temperature gradient.
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