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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 4 — Apr. 1, 2009
  • pp: 819–829

Analysis of energy transfers between Tb 3 + and Yb 3 + codoped in borosilicate glasses

Tatsuya Yamashita and Yasutake Ohishi  »View Author Affiliations


JOSA B, Vol. 26, Issue 4, pp. 819-829 (2009)
http://dx.doi.org/10.1364/JOSAB.26.000819


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Abstract

Energy transfer analyses are performed on Tb 3 + and Yb 3 + codoped in borosilicate glasses to assess their potential as gain media for green lasers and amplifiers under the 0.98 μ m band pumping. Based on experimental observations using the samples highly codoped with Tb 3 + and Yb 3 + , a rate equation model of energy transfers between Tb 3 + and Yb 3 + is constructed considering the four types of energy transfers processes; (i) the cooperative energy transfer upconversion, (ii) the phonon-assisted energy transfer from Tb 3 + to Yb 3 + , (iii) the cooperative cross relaxation, and (iv) the phonon-assisted energy transfer from Yb 3 + to Tb 3 + . The rate equation model can simulate the experimental emission dynamics of Tb 3 + and Yb 3 + codoped samples well. It is clarified that a practical signal gain at 0.54 μ m can be obtained in Tb 3 + Yb 3 + codoped fiber under the 0.98 μ m band pumping.

© 2009 Optical Society of America

OCIS Codes
(140.4480) Lasers and laser optics : Optical amplifiers
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(160.3380) Materials : Laser materials
(160.5690) Materials : Rare-earth-doped materials
(140.3613) Lasers and laser optics : Lasers, upconversion

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 10, 2009
Revised Manuscript: February 10, 2009
Manuscript Accepted: February 13, 2009
Published: March 26, 2009

Citation
Tatsuya Yamashita and Yasutake Ohishi, "Analysis of energy transfers between Tb3+ and Yb3+ codoped in borosilicate glasses," J. Opt. Soc. Am. B 26, 819-829 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-4-819

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