Temperature dependence and optimization of 970-nm diode-pumped Yb : YAG and Yb : LuAG lasers

Authors
Kasamatsu, T Sekita, H Kuwano, Y
Citation
T. Kasamatsu et al., Temperature dependence and optimization of 970-nm diode-pumped Yb : YAG and Yb : LuAG lasers, APPL OPTICS, 38(24), 1999, pp. 5149-5153
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
APPLIED OPTICS
ISSN journal
00036935 → ACNP
Volume
38
Issue
24
Year of publication
1999
Pages
5149 - 5153
Database
ISI
SICI code
0003-6935(19990820)38:24<5149:TDAOO9>2.0.ZU;2-O
Abstract
We have investigated the temperature dependence of output performances for 970-nm diode-pumped Yb:YAG (Yb3+:Y3Al5O12) and Yb:LuAG(Yb3+:Lu3Al5O12) lase rs over the wide temperature range from 80 to 310 K. Temperature-optimized operation was experimentally demonstrated at around 160 K and was theoretic ally confirmed by taking into account the absorption spectra change of Yb c rystals at low temperatures. Cooling the crystal to below 160 K caused a na rrowing of the absorption bandwidth and led to a decrease in output power a nd efficiency. (C) 1999 Optical Society of America. OCIS codes: 140.3070, 1 40.5680, 300.1030.