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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 21 — Nov. 1, 2009
  • pp: 3313–3315

Erbium-doped all-fiber laser at 2.94 μ m

Dominic Faucher, Martin Bernier, Nicolas Caron, and Réal Vallée  »View Author Affiliations

Optics Letters, Vol. 34, Issue 21, pp. 3313-3315 (2009)

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We report what we believe is the first demonstration of laser emission at 2.94 μ m in an erbium-doped fluoride fiber laser. The low-loss all-fiber Fabry–Perot laser cavity was formed by two fiber Bragg gratings of 90% and 15% reflectivities in a 6.6 m , 7 mol. % Er-doped double-clad fiber. A maximum cw output power of 5.2 W was measured, which is to our knowledge the highest reported to date for a diode-pumped laser at this wavelength. A coreless endcap was fused at the output fiber end to prevent its deterioration at high output powers. Our results, including the slope efficiency of 26.6% with respect to launched pump power, suggest that erbium could be a better alternative than holmium in the search for a replacement for the flashlamp-pumped Er:YAG at 2.94 μ m .

© 2009 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3510) Lasers and laser optics : Lasers, fiber
(230.1480) Optical devices : Bragg reflectors

ToC Category:
Lasers and Laser Optics

Original Manuscript: September 1, 2009
Revised Manuscript: September 30, 2009
Manuscript Accepted: September 30, 2009
Published: October 26, 2009

Dominic Faucher, Martin Bernier, Nicolas Caron, and Réal Vallée, "Erbium-doped all-fiber laser at 2.94 μm," Opt. Lett. 34, 3313-3315 (2009)

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