Cr4+ doped garnets: novel laser materials and non-linear saturable absorbers

被引:44
作者
Kalisky, Y [1 ]
Baranga, ABA [1 ]
Shimony, Y [1 ]
Kokta, MR [1 ]
机构
[1] UNION CARBIDE CORP,WASHOUGAL,WA 98671
关键词
D O I
10.1016/S0925-3467(97)00023-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The use and the spectral properties of Cr4+-doped garnets as passive Q-switches for 1.06 mu m laser for both pulsed and CW operating modes is addressed. A comparative research into the use of Cr4+-doped YAG, YSGG and LuAG (Lu3Al5O12) as saturable absorbers for the 1.06 mu m emission of Nd:YAG laser has been conducted. Q-switched pulses with temporal duration ranging from 52 to 23 ns (FWHM) were observed for the different garnets under investigation. Cross-sections for ground state and excited state absorptions were evaluated by fitting our saturation data to Frantz-Nodvik equation. A complete analysis of the saturation transmission curves will be presented. The laser performance of Cr4+:YAG and Cr4+:LuAG (Lu3Al5O12) lasing in the mid-IR (1.35-1.55 mu m) pumped by the 1064 nm of Nd:YAG will also be reported. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:129 / 134
页数:6
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