Characteristics of Nd：GdVO4 Laser with Different Nd-Doping Concentrations

作     者：张玲 张春雨 魏志义 张治国 Stephan Strohmaier Hans J. Eichle 

作者机构：Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of SciencesBeijing 100080 Optical Institute Technical University Berlin Strasse de 17 Juni 135 D-10623 Berlin Germany 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2006年第23卷第8期

页      面：2088-2091页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0803[工学-光学工程] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 60225005  60308001  60321003 and 60490280 

主　　题：Nd:GdVO4 Laser Different Nd-Doping Concentrations 

摘      要：We report the properties of a compact diode-pumped continuous-wave Nd：GdV04 laser with a linear cavity and different Nd-doped laser crystals. In a 0.2at.% Nd-doped Nd：GdVO4 laser, 1.54 W output laser power is achieved at 912nm wavelength with a slope efficiency of 24.8% at an absorbed pump power of 9.4W. With 0.3at.% Nd-doping concentration, we can obtain the either single-wavelength emission at 1064nm or 912nm or the dual-wavelength emission at 1064nm and 912nm by controlling the incident pump power. From an incident pump power of 11.6 W, the 1064nm emission between ^4Fa/2 and ^4I11/2 is suppressed completely by the 912nm emission between ^4Fa/2 and ^4I9/2. We obtain 670 mW output of the 912nm single-wavelength laser emission with a slope efficiency of 5.5% by taking an incident pump power of 18.4 W. Using a Nd：GdV04 laser with 0.4at.% Nd-doping concentration, we obtain either the single-wavelength emission at 1064nm or the dual-wavelength emission at both 1064nm and 912nm by increasing the incident pump power. We observe a strong competition process in the dualavelength laser.