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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 21 — Nov. 1, 2013
  • pp: 4370–4373

Lifetime reduction due to photodarkening phenomenon in ytterbium-doped fibers and rate equation term

Riccardo Piccoli, David Mechin, Thierry Robin, and Stefano Taccheo  »View Author Affiliations


Optics Letters, Vol. 38, Issue 21, pp. 4370-4373 (2013)
http://dx.doi.org/10.1364/OL.38.004370


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Abstract

In this Letter, the lifetime temporal reduction in ytterbium-doped aluminosilicate fibers due to pump-induced photodarkening (PD) has been reported. A linear correlation between lifetime reduction at equilibrium state and equilibrium losses due to the PD phenomenon was demonstrated. A squared-law dependence between lifetime reduction and dopant concentration (percent by weight) suggests a possible correction term for the rate equations system which allows improving its accuracy. Finally, a quenching effect was also observed for different pump power levels in order to find the corresponding lifetime value for different inversion levels. The quantitative analysis allows determination of the PD quenching term in the laser rate equations system to properly model a laser device that may be affected by this process.

© 2013 Optical Society of America

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(140.3510) Lasers and laser optics : Lasers, fiber
(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: July 26, 2013
Manuscript Accepted: September 15, 2013
Published: October 23, 2013

Citation
Riccardo Piccoli, David Mechin, Thierry Robin, and Stefano Taccheo, "Lifetime reduction due to photodarkening phenomenon in ytterbium-doped fibers and rate equation term," Opt. Lett. 38, 4370-4373 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-21-4370

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