500 W rod-type 4x4 multi-core ultrafast fiber laser
Optics
2022-05-06 v1
Abstract
We present a coherently-combined femtosecond fiber CPA 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 an excellent beam quality. Additionally, <500 fs pulses with up to 600 uJ of pulse energy were also realized with this setup. This architecture is intrinsically power scalable by increasing the number of cores in the fiber.
Keywords
Cite
@article{arxiv.2205.02575,
title = {500 W rod-type 4x4 multi-core ultrafast fiber laser},
author = {A. Klenke and A. Steinkopff and C. Aleshire and C. Jauregui and S. Kuhn and J. Nold and C. Hupel and S. Hein and S. Schulze and N. Haarlammert and T. Schreiber and A. Tünnermann and J. Limpert},
journal= {arXiv preprint arXiv:2205.02575},
year = {2022}
}