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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. 29, Iss. 9 — Sep. 1, 2012
  • pp: 2493–2502

Measurement of temperature-dependent absorption and emission spectra of Yb:YAG, Yb:LuAG, and Yb:CaF2 between 20 °C and 200 °C and predictions on their influence on laser performance

Joerg Koerner, Christian Vorholt, Hartmut Liebetrau, Martin Kahle, Diethard Kloepfel, Reinhard Seifert, Joachim Hein, and Malte C. Kaluza  »View Author Affiliations


JOSA B, Vol. 29, Issue 9, pp. 2493-2502 (2012)
http://dx.doi.org/10.1364/JOSAB.29.002493


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Abstract

Accurate values of the emission and absorption cross sections of Yb:YAG, Yb:LuAG, and Yb:CaF2 as a function of temperature between room temperature and 200 °C are presented. For this purpose, absorption and fluorescence spectra were measured using a setup optimized to reduce the effect of radiation trapping. From these data, emission cross sections were retrieved by combining the Fuchtbauer–Ladenburg equation and the reciprocity method. Based on our measurements, simple estimations illustrate the effect of temperature shifts that are likely to occur in typical laser setups. Our results show that even minor temperature variations can have significant impact on the laser performance using Yb:YAG and Yb:LuAG as an active medium, while Yb:CaF2 appears to be rather insensitive.

© 2012 Optical Society of America

OCIS Codes
(140.6810) Lasers and laser optics : Thermal effects
(160.3380) Materials : Laser materials
(300.1030) Spectroscopy : Absorption
(300.2140) Spectroscopy : Emission
(300.6170) Spectroscopy : Spectra
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Spectroscopy

History
Original Manuscript: April 11, 2012
Revised Manuscript: June 27, 2012
Manuscript Accepted: July 11, 2012
Published: August 24, 2012

Citation
Joerg Koerner, Christian Vorholt, Hartmut Liebetrau, Martin Kahle, Diethard Kloepfel, Reinhard Seifert, Joachim Hein, and Malte C. Kaluza, "Measurement of temperature-dependent absorption and emission spectra of Yb:YAG, Yb:LuAG, and Yb:CaF2 between 20 °C and 200 °C and predictions on their influence on laser performance," J. Opt. Soc. Am. B 29, 2493-2502 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-9-2493

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