Journal
OPTICS LETTERS
Volume 47, Issue 2, Pages 345-348Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.445302
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Funding
- Deutsche Forschungsgemeinschaft [259607349, 416342637]
- Thuringer Aufbaubank [TAB-FGR0074]
- Free State of Thuringia
- European Social Fund (RATI)
- European Research Council [835306]
- Fraunhofer Cluster of Excellence Advanced photon sources (CAPS)
- Bundesministerium fur Bildung und Forschung [13N15244]
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In this paper, a coherently combined femtosecond fiber chirped-pulse-amplification system based on a multicore fiber is presented, which demonstrates excellent performance in terms of high power and pulse energy. The system is scalable by increasing the number of cores in the fiber.
We present a coherently combined femtosecond fiber chirped-pulse-amplification system based on a rod-type, ytterbium-doped, multicore fiber with 4x4 cores. A high average power of up to 500 W (after combination and compression) could be achieved at 10 MHz repetition rate with excellent beam quality. Additionally, < 500 fs pulses with up to 600 mu J of pulse energy were also realized with this setup. This architecture is intrinsically power scalable by increasing the number of cores in the fiber. (C) 2022 Optica Publishing Group
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