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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 24 — Aug. 20, 1999
  • pp: 5149–5153

Temperature Dependence and Optimization of 970-nm Diode-Pumped Yb:YAG and Yb:LuAG Lasers

Tadashi Kasamatsu, Hitoshi Sekita, and Yasuhiko Kuwano  »View Author Affiliations


Applied Optics, Vol. 38, Issue 24, pp. 5149-5153 (1999)
http://dx.doi.org/10.1364/AO.38.005149


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Abstract

We have investigated the temperature dependence of output performances for 970-nm diode-pumped Yb:YAG (Yb<sup>3+</sup>:Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>) and Yb:LuAG (Yb<sup>3+</sup>:Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>) lasers over the wide temperature range from 80 to 310 K. Temperature-optimized operation was experimentally demonstrated at around 160 K and was theoretically confirmed by taking into account the absorption spectra change of Yb crystals at low temperatures. Cooling the crystal to below 160 K caused a narrowing of the absorption bandwidth and led to a decrease in output power and efficiency.

© 1999 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(300.1030) Spectroscopy : Absorption

Citation
Tadashi Kasamatsu, Hitoshi Sekita, and Yasuhiko Kuwano, "Temperature Dependence and Optimization of 970-nm Diode-Pumped Yb:YAG and Yb:LuAG Lasers," Appl. Opt. 38, 5149-5153 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-24-5149


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