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Optics Letters

Optics Letters


  • Vol. 24, Iss. 16 — Aug. 15, 1999
  • pp: 1133–1135

Diode-pumped 1.7-W erbium 3-μm fiber laser

Stuart D. Jackson, Terence A. King, and Markus Pollnau  »View Author Affiliations

Optics Letters, Vol. 24, Issue 16, pp. 1133-1135 (1999)

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We report what is to our knowledge the first 3-mu;m fiber laser of the 1-W class. 1.7 W of output power and 17.3% slope efficiency (with respect to the launched pump power) at a wavelength of 2.71μm are demonstrated from a double-clad erbium-doped ZBLAN fiber diode pumped at 790 nm. Energy transfer from the Er3+ lower laser level to a Pr3+ codopant decreases ground-state bleaching and excited-state absorption, thus avoiding output-power saturation. This result represents more than an order-of-magnitude improvement over previous work of which we are aware. Advantages over current crystal-laser designs include nearly transverse-fundamental-mode operation, reduced thermal effects, and ease of use, e.g., in medical endoscopy.

© 1999 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3460) Lasers and laser optics : Lasers
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3570) Lasers and laser optics : Lasers, single-mode

Stuart D. Jackson, Terence A. King, and Markus Pollnau, "Diode-pumped 1.7-W erbium 3-μm fiber laser," Opt. Lett. 24, 1133-1135 (1999)

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