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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 22 — Oct. 22, 2012
  • pp: 25085–25095

Ytterbium-doped fibers fabricated with atomic layer deposition method

Joan J. Montiel i Ponsoda, Lars Norin, Changgeng Ye, Markus Bosund, Mikko J. Söderlund, Ari Tervonen, and Seppo Honkanen  »View Author Affiliations


Optics Express, Vol. 20, Issue 22, pp. 25085-25095 (2012)
http://dx.doi.org/10.1364/OE.20.025085


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Abstract

We report on a new fabrication method of producing ytterbium doped fibers by atomic layer deposition (ALD) in combination with the conventional modified chemical vapor deposition (MCVD) technique. An MCVD soot-preform with a porous layer of SiO2 is coated with layers of Yb2O3 and Al2O3 prior to sintering, using the gas-phase ALD method. An SEM/EDS material analysis study shows that the dopants successfully penetrate the full thickness of 320 µm of the soot layer. An Yb-doped fiber fabricated by this technique shows a background attenuation of 20 dB/km, a uniform longitudinal Yb-doping profile, and good laser characteristics with a slope efficiency of 80%. Furthermore, we present a comparison in terms of photodarkening between the MCVD-ALD fiber and a solution doped fiber, fabricated with the same MCVD recipe. The new MCVD-ALD fiber appears to be more photodarkening resistant.

© 2012 OSA

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(140.3330) Lasers and laser optics : Laser damage
(160.2290) Materials : Fiber materials
(160.5690) Materials : Rare-earth-doped materials
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: August 10, 2012
Revised Manuscript: October 7, 2012
Manuscript Accepted: October 12, 2012
Published: October 18, 2012

Citation
Joan J. Montiel i Ponsoda, Lars Norin, Changgeng Ye, Markus Bosund, Mikko J. Söderlund, Ari Tervonen, and Seppo Honkanen, "Ytterbium-doped fibers fabricated with atomic layer deposition method," Opt. Express 20, 25085-25095 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-22-25085


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