300-W high-brightness Yb-doped fiber laser near 980 nm based on a 3 × 1 fiber signal combiner
Year: 2026
Type: article
Abstract: In this paper, a 300-W-level fiber laser near 980 nm is demonstrated with the M 2 factor of about 5.27 by using a 3 × 1 fiber signal combiner. This fiber laser is fabricated by beam combining three elementary step-index Yb-doped fiber lasers near 980 nm with a 3 × 1 fiber signal combiner. Then, about 296-W power was achieved from the output fiber of 50-μm core diameter, and the corresponding M 2 factor is about 5.27. It is also demonstrated that the beam quality with an M 2 factor of about 3 can be expected by optimizing the beam quality of elementary fiber lasers.
Source: Optics Express
DOI: 10.1364/oe.591719
Institution: National University of Defense Technology
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
Award: G2822639572
OpenAlex ID: W7154585702