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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 3, Iss. 4 — Apr. 1, 2013
  • pp: 452–458

Deactivation of Yb3+ ions due to photodarkening

S. Jetschke, A. Schwuchow, S. Unger, M. Leich, M. Jäger, and J. Kirchhof  »View Author Affiliations

Optical Materials Express, Vol. 3, Issue 4, pp. 452-458 (2013)

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We carefully examined the fluorescence properties of Yb-doped fibers before and after pump-induced photodarkening (PD) and found a significant reduction of Yb3+ fluorescence intensity and lifetime due to the degradation process, obviously correlated with the measured PD loss. To explain these results, a non-radiative energy transfer from excited Yb3+ ions to the atomic defects (color centers) in close vicinity of the Yb3+ ions is suggested and discussed quantitatively as a function of PD loss generated in fibers with different Yb concentrations, by various pump powers or at different photodarkening states. All modifications of fluorescence properties proved to be reversed by thermal bleaching of the PD-induced color centers.

© 2013 OSA

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(160.2290) Materials : Fiber materials
(160.5690) Materials : Rare-earth-doped materials

ToC Category:
Materials for Fiber Optics

Original Manuscript: November 26, 2012
Revised Manuscript: February 19, 2013
Manuscript Accepted: March 6, 2013
Published: March 7, 2013

S. Jetschke, A. Schwuchow, S. Unger, M. Leich, M. Jäger, and J. Kirchhof, "Deactivation of Yb3+ ions due to photodarkening," Opt. Mater. Express 3, 452-458 (2013)

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  14. A. Schwuchow, S. Unger, S. Jetschke, and J. Kirchhof (Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany) are preparing a manuscript to be called “Advanced absorption and fluorescence measurements to characterize photodarkening and related properties of Yb fibers”.
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