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作者:

Wei, S. (Wei, S..) | Jin, D. (Jin, D..) | Sun, R. (Sun, R..) | Cao, Y. (Cao, Y..) | Hou, Y. (Hou, Y..) | Wang, J. (Wang, J..) | Liu, J. (Liu, J..) | Wang, P. (Wang, P..) (学者:王璞)

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摘要:

We obtained stable narrow bandwidth superfluorescent sources with central wavelengths of 1060 nm and 1078 nm by using a segment of ytterbium-doped double-cladding fiber as the gain medium, multi-mode diode lasers operating at 976 nm and 915 nm as pumping sources, and fiber Bragg gratings as filters. Two three-stage high power fiber amplifier systems are used to boost the output power up to 57.4 W and 56.6 W respectively, with the slope efficiencies of 66.6% and 66.7%. The superfluorescent bandwidths at 1060 nm and 1078 nm are 0.05 nm. Two output beams are spectrally combined with a transmission diffraction grating, the output beam is with the power of 104.2 W, power efficiency of 91.3% and the beam quality M2 is superior to 1.7. © 2016, Chinese Lasers Press. All right reserved.

关键词:

Beam combining; Fiber amplifier; Fiber superfluorescent source; Laser optics; Ytterbium-doped fiber

作者机构:

  • [ 1 ] [Wei, S.]Institute of Laser Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 2 ] [Jin, D.]Institute of Laser Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 3 ] [Sun, R.]Institute of Laser Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 4 ] [Cao, Y.]Institute of Laser Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 5 ] [Hou, Y.]Institute of Laser Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 6 ] [Wang, J.]Institute of Laser Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 7 ] [Liu, J.]Institute of Laser Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 8 ] [Wang, P.]Institute of Laser Engineering, Beijing University of Technology, Beijing, 100124, China

通讯作者信息:

  • 王璞

    [Wang, P.]Institute of Laser Engineering, Beijing University of TechnologyChina

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来源 :

Chinese Journal of Lasers

ISSN: 0258-7025

年份: 2016

期: 4

卷: 43

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