530 W, 13 mJ, four-channel coherently combined femtosecond fiber chirped-pulse amplification system
Top Cited Papers
- 25 June 2013
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 38 (13), 2283-5
- https://doi.org/10.1364/ol.38.002283
Abstract
We report on a femtosecond fiber laser system comprising four coherently combined large-pitch fibers as the main amplifier. With this system, a pulse energy of 1.3 mJ and a peak power of 1.8 GW are achieved at 400 kHz repetition rate. The corresponding average output power is as high as 530 W. Additionally, an excellent beam quality and efficiency of the combination have been obtained. To the best of our knowledge, such a parameter combination, i.e., gigawatt pulses with half a kilowatt average power, has not been demonstrated so far with any other laser architectureKeywords
Funding Information
- German Federal Ministry of Education and Research (BMBF) (13N12082)
- European Union’s Seventh Framework Program ((FP7/2007-2013)/ERC, 240460)
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