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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 3 — Feb. 1, 2014
  • pp: 493–496

Mid-infrared fiber lasers at and beyond 3.5 μm using dual-wavelength pumping

Ori Henderson-Sapir, Jesper Munch, and David J. Ottaway  »View Author Affiliations

Optics Letters, Vol. 39, Issue 3, pp. 493-496 (2014)

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We report the first, to the best of our knowledge, erbium-doped zirconium-fluoride-based glass fiber laser operating well beyond 3 μm with significant power. This fiber laser achieved 260 mW in CW at room temperature. The use of two different wavelength pump sources allows us to take advantage of the long-lived excited states that would normally cause a bottleneck, and this enables maximum incident optical-to-optical efficiency of 16% with respect to the total incident pump power. Both output power and efficiency are an order of magnitude improvement over similar lasers demonstrated previously. The fiber laser operating at 3.604 μm also exhibited the longest wavelength of operation obtained to date for a room temperature, nonsupercontinuum fiber laser.

© 2014 Optical Society of America

OCIS Codes
(060.2390) Fiber optics and optical communications : Fiber optics, infrared
(060.2410) Fiber optics and optical communications : Fibers, erbium
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Lasers and Laser Optics

Original Manuscript: October 23, 2013
Revised Manuscript: December 19, 2013
Manuscript Accepted: December 19, 2013
Published: January 21, 2014

Ori Henderson-Sapir, Jesper Munch, and David J. Ottaway, "Mid-infrared fiber lasers at and beyond 3.5 μm using dual-wavelength pumping," Opt. Lett. 39, 493-496 (2014)

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