Volume 17 Issue 05
May  2005
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xue dong, lou qi-hong, zhou jun, et al. Properties of ytterbium-doped double clad fiber made in China[J]. High Power Laser and Particle Beams, 2005, 17.
Citation: xue dong, lou qi-hong, zhou jun, et al. Properties of ytterbium-doped double clad fiber made in China[J]. High Power Laser and Particle Beams, 2005, 17.

Properties of ytterbium-doped double clad fiber made in China

  • Publish Date: 2005-05-15
  • The double clad fiber made in China was fabricated by the modified chemical-vapor deposition (MCVD) technique. The geometric, fluorescence, and laser characters of the fiber were measured. The fiber has a 16 ?m diameter Yb-doped core with a numerical aperture (NA) of 0.18,and the inner cladding has a 400/450 ?m diameter for the longer/shorter axis with a NA of 0.36. The fluorescence spectrum ranged from 1 000~1 140 nm, and the spectrum width at 1 030 nm is greater than 50 nm.When one end of the fiber was pumped by a high-power laser diode with the launched power of 61 W, 32 W laser output was obtained with the slope efficiency of 64%. There is no evidence of saturation at high pump powers, so the output power can be further improved by optimizing the parameters.
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