3.5 kW coherently combined ultrafast fiber laser
Optics
2021-01-27 v1
Abstract
An ultrafast laser based on coherent beam combination of four ytterbium-doped step-index fiber amplifiers is presented. The system delivers an average power of 3.5 kW and a pulse duration of 430 fs at 80 MHz repetition rate. The beam quality is excellent (M2<1.24x1.10) and the relative intensity noise is as low as 1% in the frequency span from 1 Hz to 1 MHz. The system is turn-key operable as it features an automated spatial and temporal alignment of the interferometric amplification channels.
Cite
@article{arxiv.2101.08499,
title = {3.5 kW coherently combined ultrafast fiber laser},
author = {Michael Müller and Arno Klenke and Albrecht Steinkopff and Henning Stark and Andreas Tünnermann and Jens Limpert},
journal= {arXiv preprint arXiv:2101.08499},
year = {2021}
}