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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 15 — May. 20, 2012
  • pp: 3091–3095

Optics InfoBase > Applied Optics > Volume 51 > Issue 15 > Page 3091

Intense red upconversion emission of Yb/Tm/Ho triply-doped tellurite glasses

Huan Zhan, Zhiguang Zhou, Jianli He, and Aoxiang Lin  »View Author Affiliations


Applied Optics, Vol. 51, Issue 15, pp. 3091-3095 (2012)
http://dx.doi.org/10.1364/AO.51.003091


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Abstract

By conventional melting and quenching methods, 3Yb2O3-0.2Tm2O3-xHo2O3 (wt%, x=0.2∼1.2) was doped into an easily fiberized tellurite glass with composition of 78TeO2-10ZnO-12Na2O (mol%) to form YTH-TZN78 glasses. Under 976 nm excitation, the direct sensitizing effect of Yb ions (Yb→Ho) and indirect sensitizing and self-depopulating effects of Tm ions (Yb→Tm→Ho) were found to present intense red upconversion emission at 657 nm (Red, Ho: F55→I58) and were responsible for the absence of the usually observed 484 nm emission (Blue, Tm:G14→H36). Regardless of the dopant concentration of Ho ions, the intensity of the red emission at 657 nm (Red, Ho: F55→I85) is about three times stronger than that of the green one at 543 nm (Green, Ho: S52→I85). For this certain red emission at 657 nm, 0.4 wt% Ho2O3-doped YTH-TZN78 glass was found to present the highest emission intensity and is therefore determined as a promising active tellurite glass for red fiber laser development.

© 2012 Optical Society of America

OCIS Codes
(060.2290) Fiber optics and optical communications : Fiber materials
(140.7300) Lasers and laser optics : Visible lasers
(160.5690) Materials : Rare-earth-doped materials
(140.3613) Lasers and laser optics : Lasers, upconversion

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: October 28, 2011
Revised Manuscript: February 23, 2012
Manuscript Accepted: February 27, 2012
Published: May 18, 2012

Citation
Huan Zhan, Zhiguang Zhou, Jianli He, and Aoxiang Lin, "Intense red upconversion emission of Yb/Tm/Ho triply-doped tellurite glasses," Appl. Opt. 51, 3091-3095 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-15-3091

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