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  • Vol. 25, Iss. 11 — Jun. 1, 2000
  • pp: 817–819

Improved emission of Tm3+-doped glass for a 1.4-μm amplifier by radiative energy transfer between Tm3+ and Nd3+

Setsuhisa Tanabe, Xian Feng, and Teiichi Hanada  »View Author Affiliations


Optics Letters, Vol. 25, Issue 11, pp. 817-819 (2000)
http://dx.doi.org/10.1364/OL.25.000817


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Abstract

We prepared a Tm-doped glass composite with a Nd-doped layer as a model 1.4-μm thulium-doped fiber amplifier (TDFA) to investigate the effect of energy transfer on the emission spectra of the composite. The competitive 0.8-mu;m emission from the Tm:3H4 level, which had a branching ratio ten times larger than that of the 1.4-μm emission, was reduced to 1/6 of its previous value by radiative transfer to the Nd layer. Also, the 1.06-μm emission from the excited Nd3+ was found to contribute to the upconversion pumping scheme for population inversion between the 3i4 and 3F4 levels of Tm3+ . The Nd-doped glass phase can be used as a cladding material for an efficient TDFA.

© 2000 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(140.4480) Lasers and laser optics : Optical amplifiers
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(160.2540) Materials : Fluorescent and luminescent materials
(160.2750) Materials : Glass and other amorphous materials
(160.5690) Materials : Rare-earth-doped materials

Citation
Setsuhisa Tanabe, Xian Feng, and Teiichi Hanada, "Improved emission of Tm3+-doped glass for a 1.4-μm amplifier by radiative energy transfer between Tm3+ and Nd3+," Opt. Lett. 25, 817-819 (2000)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-25-11-817


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References

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