Comparative performance of passively Q-switched diode-pumped Yb3+-doped tungstate and garnet lasers using Cr4+:YAG saturable absorber

被引：12

作者：

Kalisky, Yehoshua ^{[1
]}

Kalisky, Ofra

Rachum, Uzi

Boulon, Georges

Brenier, Alain

机构：

[1] Nucl Res Ctr Negev, Dept Chem, IL-89140 Beer Sheva, Israel

[2] Jerusalem Coll Technol, IL-91160 Jerusalem, Israel

[3] Ben Gurion Univ Negev, Dept Elect & Comp Engn, IL-84105 Beer Sheva, Israel

[4] Univ Lyon 1, LPCML, Lab Physicochim Mat Luminescents, LPCML, F-69622 Villeurbanne, France

来源：

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 2007年 / 13卷 / 03期

关键词：

diode-pumped lasers; passive Q-switching; Yb : GGG; Yb : YAG; Yb : KYW laser;

D O I：

10.1109/JSTQE.2007.896084

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We investigated the continuous wave (CW) free-running and repetitive modulation in the kilohertz frequency domain of a passively Q-switched diode-pumped Yb:YAG, Yb:GGG, and Yb:KYW lasers by using Cr4+ NAG as a saturable absorber. The results presented in this paper are focused on the design of a passively Q-switched Yb-doped garnets or Yb-doped tungstates microlasers. The free-running performance of Yb:YAG, Yb:GGG, Yb:KGW, and Yb:KYW were characterized, and experimental parameters such as gain and loss were evaluated. We carried out a fit between our experimental results and an existing numerical model, which relates the experimental and the physical parameters of the ytterbium diode-pumped system to the minimal threshold pumping power. The best performance among the laser crystals was obtained for Yb:YAG laser. A maximum peak power of approximate to 4.5 kW at an average output power of 1.32 W was extracted with an extraction efficiency of approximate to 25 %.

引用

页码：502 / 510

页数：9

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