Theoretical and experimental study on kW all fiber laser

Li Tenglong; Sun Yinhong; Ma Yi; Yang Bo

doi:10.11884/HPLPB201426.081001

Volume 26 Issue 08

Jul. 2014

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Article Navigation > High Power Laser and Particle Beams > 2014 > 26(08): 081001

Wang Yu, Li Hongtao, Wang Wendou, et al. Simulation study on performances of rod-pinch diode on 1.2 MV X-ray generator Scorpio[J]. High Power Laser and Particle Beams, 2015, 27: 095005. doi: 10.11884/HPLPB201527.095005

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Li Tenglong, Sun Yinhong, Ma Yi, et al. Theoretical and experimental study on kW all fiber laser[J]. High Power Laser and Particle Beams, 2014, 26: 081001. doi: 10.11884/HPLPB201426.081001

Citation:

Li Tenglong, Sun Yinhong, Ma Yi, et al. Theoretical and experimental study on kW all fiber laser[J]. High Power Laser and Particle Beams, 2014, 26: 081001. doi: 10.11884/HPLPB201426.081001

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Theoretical and experimental study on kW all fiber laser

doi: 10.11884/HPLPB201426.081001

Li Tenglong^{1,2
,
,},
Sun Yinhong^1,2,
Ma Yi^1,2,
Yang Bo^1,2

1.
Key Laboratory of Science and Technology on High Energy Laser,CAEP,Mianyang 621900,China;
2.
Institute of Applied Electronics,CAEP,Mianyang 621900,China

Received Date: 2013-09-28
Rev Recd Date: 2014-03-03
Publish Date: 2014-06-26

Abstract

Abstract

kW-class all-fiber laser was designed by employing master oscillator power amplifier (MOPA) configuration. Power output and distribution, mode controlling by bending, thermal distribution of active fiber in cooling condition were numerically analyzed. The fiber laser based on our design was built up. In the experiment, 1060 W continuous laser was obtained with a total pumped power of 1436 W. The optical-optical conversion efficiency was 73.8% and the beam quality M2 was less than 1.6. We preliminarily discussed the difference between the experimental results and theoretical design.
- all-fiber lasers,
- MOPA configuration,
- power distribution,
- mode control by bending,
- active cooling

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