A 2.14 kW tandem pumped fiber amplifier

Xiao Hu; Leng Jinyong; Zhang Hanwei; Huang Liangjin; Guo Shaofeng; Zhou Pu; Chen Jinbao

doi:10.11884/HPLPB201527.010103

Volume 27 Issue 01

Jan. 2015

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Xiao Hu, Leng Jinyong, Zhang Hanwei, et al. A 2.14 kW tandem pumped fiber amplifier[J]. High Power Laser and Particle Beams, 2015, 27: 010103. doi: 10.11884/HPLPB201527.010103

Citation:

Xiao Hu, Leng Jinyong, Zhang Hanwei, et al. A 2.14 kW tandem pumped fiber amplifier[J]. High Power Laser and Particle Beams, 2015, 27: 010103. doi: 10.11884/HPLPB201527.010103

Xiao Hu, Leng Jinyong, Zhang Hanwei, et al. A 2.14 kW tandem pumped fiber amplifier[J]. High Power Laser and Particle Beams, 2015, 27: 010103. doi: 10.11884/HPLPB201527.010103

Citation:

Xiao Hu, Leng Jinyong, Zhang Hanwei, et al. A 2.14 kW tandem pumped fiber amplifier[J]. High Power Laser and Particle Beams, 2015, 27: 010103. doi: 10.11884/HPLPB201527.010103

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A 2.14 kW tandem pumped fiber amplifier

doi: 10.11884/HPLPB201527.010103

1.
College of Optoelectronic Science and Engineering,National University of Defense Technology,Changsha 410073,China

Rev Recd Date: 2015-01-04
Publish Date: 2015-01-20

Abstract

Abstract

A 476 W 1018 nm ytterbium fiber laser has been demonstrated employing large mode area fiber. A high power ytterbium doped fiber amplifier pumped by 6 high brightness 1018 nm fiber lasers is constructed. The maximum output power is 2140 W, with a slope efficiency as high as 86.9%. The beam quality M2 factor is measured to be 1.9. Further power scaling is very probable if more powerful pump sources are provided.
- fiber amplifier,
- cascaded pump,
- high power,
- conversion efficiency,
- stimulated Raman scattering