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Optics Letters

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  • Vol. 24, Iss. 18 — Sep. 15, 1999
  • pp: 1287–1289

Fourfold output power enhancement and threshold reduction through thermal effects in an Er3+/Yb3+-codoped optical fiber laser excited at 1.064 μm

C. J. da Silva, M. T. de Araujo, E. A. Gouveia, and A. S. Gouveia-Neto  »View Author Affiliations


Optics Letters, Vol. 24, Issue 18, pp. 1287-1289 (1999)
http://dx.doi.org/10.1364/OL.24.001287


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Abstract

Thermally induced output power enhancement and threshold reduction in an Er3+/Yb3+ -codoped optical fiber laser at 1.54μm pumped by 1.064-mu;m cw radiation is demonstrated. Steady fourfold output power increase and threshold decrease were achieved by heating of the Yb3+ -sensitized Er3+ -doped fiber laser medium in the temperature range 23–150°C°. The laser efficiency thermal behavior is assigned to the temperature-dependent effective absorption cross section of the ytterbium sensitizer through the so-called multiphonon-assisted anti-Stokes excitation process.

© 1999 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3510) Lasers and laser optics : Lasers, fiber
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(140.6810) Lasers and laser optics : Thermal effects
(160.5690) Materials : Rare-earth-doped materials
(190.2620) Nonlinear optics : Harmonic generation and mixing

Citation
C. J. da Silva, M. T. de Araujo, E. A. Gouveia, and A. S. Gouveia-Neto, "Fourfold output power enhancement and threshold reduction through thermal effects in an Er3+/Yb3+-codoped optical fiber laser excited at 1.064 μm," Opt. Lett. 24, 1287-1289 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-18-1287


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