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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 15 — Jul. 20, 2009
  • pp: 12588–12593

Non-isothermal bleaching of photodarkened Yb-doped fibers

Martin Leich, Ulrich Röpke, Sylvia Jetschke, Sonja Unger, Volker Reichel, and Johannes Kirchhof  »View Author Affiliations

Optics Express, Vol. 17, Issue 15, pp. 12588-12593 (2009)

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We report on the thermal treatment of photodarkened Yb-doped fiber samples. The method of non-isothermal bleaching at different temperature ramp rates can be used to determine the thermal energy distribution of photodarkening induced color centers. A distributed activation energy with a mean value of about 1.3 eV and a FWHM of 0.5 eV was found. Spectral changes during thermal treatment were observed and could be interpreted, e.g. as an enhancement of the absorption cross section.

© 2009 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:
Fiber Optics and Optical Communications

Original Manuscript: May 19, 2009
Revised Manuscript: July 2, 2009
Manuscript Accepted: July 7, 2009
Published: July 10, 2009

Martin Leich, Ulrich Röpke, Sylvia Jetschke, Sonja Unger, Volker Reichel, and Johannes Kirchhof, "Non-isothermal bleaching of photodarkened Yb-doped fibers," Opt. Express 17, 12588-12593 (2009)

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  1. S. Jetschke, S. Unger, A. Schwuchow, M. Leich, and J. Kirchhof, “Efficient Yb laser fibers with low photodarkening by optimization of the core composition,” Opt. Express 16(20), 15540–15545 (2008). [CrossRef] [PubMed]
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