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Optics Letters

Optics Letters


  • Vol. 28, Iss. 22 — Nov. 15, 2003
  • pp: 2192–2194

Power scaling method for 2-μm diode-cladding-pumped Tm3+-doped silica fiber lasers that uses Yb3+ codoping

Stuart D. Jackson  »View Author Affiliations

Optics Letters, Vol. 28, Issue 22, pp. 2192-2194 (2003)

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Unidirectional dual-wavelength pumping at 805 and 975 nm of a Tm3+ -doped silica double-clad fiber laser that has been codoped with Yb3+ is demonstrated. With equal 2-wt. % concentrations of the Tm3+ and Yb3+ ions, slope efficiencies of 49% (57%) and 35% (40%) with respect to the launched (absorbed) pump power of the 805- and 975-nm pump wavelengths, respectively, were obtained. Efficient Yb3+→ Tm3+ energy transfer and efficient cross relaxation combined with minimal upconversion losses were thus operating. At the maximum output power of 18 W, the fiber laser operated at a center wavelength of 2050 nm.

© 2003 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3510) Lasers and laser optics : Lasers, fiber
(140.5560) Lasers and laser optics : Pumping

Stuart D. Jackson, "Power scaling method for 2-μm diode-cladding-pumped Tm3+-doped silica fiber lasers that uses Yb3+ codoping," Opt. Lett. 28, 2192-2194 (2003)

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