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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 6,
  • Issue 8,
  • pp. 583-585
  • (2008)

Side-pumped short rectangular Nd-doped phosphate glass fiber lasers

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Abstract

Watt-level short fiber lasers side-pumped through fiber-to-waveguide couplers are demonstrated. The fiber lasers are fabricated from Nd-doped phosphate glass with large numerical aperture of 0.2 and rectangular cross section of 1.5 x 0.5 (mm). Single transverse mode output is achieved by the gain-guiding effect. Average power of 1 W is generated from a 4.0-cm-long fiber laser with a slope efficiency of 10%.

© 2008 Chinese Optics Letters

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