All-fiber narrow linewidth fiber laser achieved 3 kW near diffraction limited output at 1 030 nm

Qiuhui Chu; Qiang Shu; Honghuan Lin; Rumao Tao; Donglin Yan; Jianjun Wang; Feng Jing

doi:10.11884/HPLPB202032.190463

Journals >High Power Laser and Particle Beams >Volume 32 >Issue 1 >Page 011005 > Article

High Power Laser and Particle Beams
Vol. 32, Issue 1, 011005 (2020)

All-fiber narrow linewidth fiber laser achieved 3 kW near diffraction limited output at 1 030 nm

Qiuhui Chu, Qiang Shu, Honghuan Lin, Rumao Tao, Donglin Yan^*, Jianjun Wang, and Feng Jing

Author Affiliations

Research Center of Laser Fusion, CAEP, P. O. Box 919-988, Mianyang 621900, China

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DOI: 10.11884/HPLPB202032.190463 Cite this Article

Qiuhui Chu, Qiang Shu, Honghuan Lin, Rumao Tao, Donglin Yan, Jianjun Wang, Feng Jing. All-fiber narrow linewidth fiber laser achieved 3 kW near diffraction limited output at 1 030 nm[J]. High Power Laser and Particle Beams, 2020, 32(1): 011005 Copy Citation Text

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Abstract

In this paper, we demonstrate an all-fiber high-power Yb-doped 1 030 nm fiber laser based on master oscillator power amplifier structure. The record output power at 1 030 nm up to 3 004 W was achieved, along with a slope efficiency of 69.27%, which is the highest output power for 1030 nm near diffraction limited beam quality fiber laser. The beam quality factor is M_x²＝1.169, M_y²＝1.174, and full width at half maximum is 0.18 nm at maximum power level. The amplified spontaneous emission (ASE) suppression ratio reaches up to 37 dB.

Keywords

amplified spontaneous emission narrow linewidth fiber laser single mode fiber laser ytterbium doped fiber laser

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