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激光二极管泵浦Nd:NaY(WO_4)_2晶体的激光性能(英文)
作者:朱忠丽 钱艳楠 刘景和 万玉春 张亮  
单位:长春理工大学化学与环境工程学院 长春理工大学化学与环境工程学院 长春理工大学化学与环境工程学院 长春理工大学化学与环境工程学院 长春理工大学化学与环境工程学院 长春130022 长春130022 长春130022 长春130022 长春130022 
关键词:掺钕钨酸钇钠晶体  吸收光谱  氙灯泵浦  激光二极管泵浦  激光晶体 
分类号:O734
出版年,卷(期):页码:2007,35(8):991-994
DOI:
摘要:

采用提拉法生长了平均尺寸为φ25mm×50mm的掺钕钨酸钇钠[Nd:NaY(WO4)2,Nd:NYW]晶体,测量了Nd:NYW晶体的吸收光谱。吸收光谱表明:该晶体在804,752nm和586nm附近的吸收峰较强、较宽,有利于用激光二极管(laser diode,LD)泵浦。分别以氙灯和LD作为泵浦源,对晶体的激光特性进行了研究。结果表明:当氙灯输入能量为11.7J时,该激光棒获得了36.9mJ的输出;当LD泵浦功率为1W时,输出273mW的1.06μm波长激光,激光阈值为160mW,光-光转换效率为27.3%,斜效率为34%。

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Sodium yttrium tungstate crystals doped with Nd3+ [Nd:NaY(WO4)2, Nd:NYW] with an average size of φ 25 mm×50 mm were grown by the Czochralski method. The absorption spectrum of the Nd:NYW crystals was measured. The absorption peaks of the crystals at 804, 752 nm and 586 nm were intensive and wide, making them propitious for the laser diode (LD) pump. The laser characteristics of the crystal were studied using the xenon flash lamp and LD pump as the pumping sources, respectively. The output energy of the laser rod is 36.9 mJ when the input energy of the xenon flash lamp is 11.7 J. When the LD pumping power is 1W, and with an output power of 273 mW for a wavelength of 1.06 μm laser, the laser rod has a laser threshold of 160 mW, an optical-optical transfer effi-ciency of 27.3%, and a slope efficiency of 34%.

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基金项目:
吉林省科技厅科技发展计划(吉科20050501)资助项目
作者简介:
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参考文献:

[1]ZHENG Quan,ZHAO Ling,QIAN Longsheng.Application and de-velopment of high power diode-pumped solid-state laser[J].Opt Pre-cision Eng(in Chinese),2001,9(1):6-10. [2]LV Baida.Recent development in high-power solid state lasers and their industrial application[J].Infrared Laser Tech(in Chinese),1994(1):27-30. [3]LIU Yuan,FANG Gaozhan,MA Xiaoyu,et al.High power diode pumped solid state lasers[J].Laser Infrared(in Chinese),2002,32(3):139-143. [4]ZHU Zhongli,LIU Jinghe,WAN Yuchun,et al.Nd:NaY(WO4)2crys-tal growth by Czochralski method[J].J Chin Ceram Soc(in Chinese),2005,33(8):942-945. [5]KAMINSKII A A,HANS J E,KEN-ICHI U.Properties of Nd3+-doped and undoped tetragonal PbWO4,NaY(WO4)2,CaWO4,and undoped monoclinic ZnWO4and CdWO4as laser-active and stimulated Raman scattering-active crystals[J].Appl Opt,1999,38(21):4533-4547. [6]CHEN Lei,ZHAO Shengzhi,ZHENG Jiaan,et al.Cr4+:YAG Q-switch laser characteristics of Nd3+:NaY(WO4)2crystal[J].J Optoelectron Laser(in Chinese),2002,13(1):27-30. [7]FU Kun,WANG Zengping,CHENG Zhenxiang,et al.Laser perfor-mance of a new laser crystal:Nd:NaY(WO4)2pumped by a Ti:sapphire[J].J Optoelectron Laser(in Chinese),2001,12(8):848-850.

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