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Title: Ytterbium fibre laser with a heavily Yb{sup 3+}-doped glass fibre core

Journal Article · · Quantum Electronics (Woodbury, N.Y.)
; ; ; ; ;  [1]; ; ; ;  [2]
  1. Fiber Optics Research Center, Russian Academy of Sciences, Moscow (Russian Federation)
  2. Laser Materials and Technology Research Center, A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

The use of optical fibres with a high concentration of active ions in the fibre core allows the reduction of the active fibre length and the increase in the threshold powers of various nonlinear effects in the fibre, thereby increasing the maximum output power of fibre lasers. For this purpose, we manufactured a highly concentrated ytterbium-doped ({approx}1.0x10{sup 21}cm{sup -3}) phosphate glass for the active fibre core and a pure glass of a similar composition for the fibre cladding. A single-mode fibre is fabricated from these glasses and generation is obtained in an ytterbium laser based on this fibre with the slope efficiency of no less than 60% at a wavelength of 975 nm. (letters)

OSTI ID:
21456865
Journal Information:
Quantum Electronics (Woodbury, N.Y.), Vol. 36, Issue 3; Other Information: DOI: 10.1070/QE2006v036n03ABEH013123; ISSN 1063-7818
Country of Publication:
United States
Language:
English