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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 5 — May. 1, 2013
  • pp: 1322–1328

Spectroscopic investigation and heat generation of Yb3+/Ho3+ codoped aluminosilicate glasses looking for the emission at 2 μm

Gomes S. N. Eliel, Kagola Upendra Kumar, Paulo T. Udo, Nelson G. C. Astrath, Luis Carlos Malacarne, Mauro L. Baesso, Tomaz Catunda, Richard Moncorgé, and Carlos Jacinto  »View Author Affiliations


JOSA B, Vol. 30, Issue 5, pp. 1322-1328 (2013)
http://dx.doi.org/10.1364/JOSAB.30.001322


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Abstract

Energy transfer (ET) and heat generation processes in Yb3+/Ho3+-codoped low-silica calcium aluminosilicate glasses were investigated using thermal lens (TL) and photoluminescence measurements looking for the emission around 2.0 μm. Stepwise ET processes from Yb3+ to Ho3+, upon excitation at 0.976 μm, produced highly efficient emission in the mid-infrared range at around 2.0 μm, with high fluorescence quantum efficiency (η10.85 and independent of Ho3+ concentration) and relatively very low thermal loading (<0.4) for concentration up to 1.5% of Ho2O3. An equation was deduced for the description of the TL results that provided the absolute value of η1 and the number of emitted photons at 2.0 μm per absorbed pump photon by the Yb3+ ions, the latter reaching 60% for the highest Ho3+ concentration. These results suggest that the studied codoped system would be a promising candidate for the construction of photonic devices, especially for medical applications.

© 2013 Optical Society of America

OCIS Codes
(140.3460) Lasers and laser optics : Lasers
(140.6810) Lasers and laser optics : Thermal effects

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 22, 2013
Revised Manuscript: March 25, 2013
Manuscript Accepted: March 26, 2013
Published: April 24, 2013

Citation
Gomes S. N. Eliel, Kagola Upendra Kumar, Paulo T. Udo, Nelson G. C. Astrath, Luis Carlos Malacarne, Mauro L. Baesso, Tomaz Catunda, Richard Moncorgé, and Carlos Jacinto, "Spectroscopic investigation and heat generation of Yb3+/Ho3+ codoped aluminosilicate glasses looking for the emission at 2 μm," J. Opt. Soc. Am. B 30, 1322-1328 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-5-1322

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