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A laser-diode end-pumped Nd:YVO4 slab laser with a fiat-concave stable cavity at 1342nm is demonstrated. Under the pumping power of 92 W, a cw laser of output 17.8 W is obtained with the slope efficiency of 25.6%. 相似文献
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We present a simple and compact design for an all-solid-state laser amplifier system which can output 9.43-kHz 630-ps, 3.5-W pulse trains under 20 W absorbed pumping power. The excellent matching between the repetition of its seed source and the fluorescence lifetime of the amplifying medium makes it quiet efficient for the four-pass amplifier to be pumped in cw mode without need of any synchronization device between the oscillator and the amplifier. The entire setup just covers an area of 55 × 25 cm^2. The output average power fluctuation is less than ±1.5% within 10min and 3% within 6h. 相似文献
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报道了用高功率线列阵光纤耦合激光二极管端面抽运的1342nmDd:YVO4激光器,在13.30W输入抽运功率下,1342nm激光输出功率达到3.22W,斜效率为25.5%。输出功率不稳定度小于1%。 相似文献
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二极管激光泵浦固体激光器和稳频研究 总被引:1,自引:0,他引:1
用调制法布里-珀罗干涉仪方法稳定二极管激光泵浦的NdYVO4单频激光器的频率。在锁定情形下,激光频从自由运行慢漂移1.43MHz/s和抖动±2.5MHz分别改善到75.75kHz/s和±1MHz 相似文献
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通过带光纤耦合的激光二极管模块端面泵浦低掺杂浓度的Nd:YVO4晶体,实现高转换效率的TEM00模准连续绿光激光器。实验采用平平对称腔型设计,高衍射效率声光调Q开关,LBO临界相位匹配腔内倍频,在注入功率30W,重复频率20KHz的条件下,获得平均功率为9.6W的532nm激光输出,实际光-光转换效率达到33.4%,相应的1064nm基频光平均输出功率为11.8W, 实际倍频效率为89.8%。同时,测得532nm绿光的M2因子为1.09,脉冲宽度为28ns。文中还对影响绿光光束质量和转换效率的因素进行了分析。 相似文献
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报道了采用光纤耦合激光二极管(LD)模块端面抽运Nd:YVO4晶体实现高功率、高重复频率声光调Q 1342 nm波长的激光输出,以及采用考虑增益频谱分布的调Q速率方程模型仿真研究该脉冲激光器的结果.在激光器注入总功率40 W的情况下,可得到最高工作重复频率100 kHz;在50 kHz重复频率工作条件下,可得到11.0 W的平均输出功率及稳定的脉冲输出.应用与介质增益频谱相关的调Q速率方程模型对该脉冲激光器进行了仿真研究,得到了脉冲宽度、脉冲峰值功率、脉冲建立时间等计算结果,还给出了输出在频谱上的分布以及谱宽,并与实验结果进行了比较.考虑增益频谱分布的调Q速率方程模型不仅可以应用于分析、设计脉冲激光器的频谱,而且由于考虑了增益在频谱上的实际分布,基于该模型的仿真计算可以获得比传统单频调Q速率方程更为接近实际的结果. 相似文献
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ZHOU Fuzheng CHEN Youming HU Wentao LI Zhishen SHENLiqong CHEN Qiushui FAN Dianyuan WANG Zhijiang 《Chinese Journal of Lasers》1994,3(1):27-28
110KilowattQ-SwitchedPulseDiodePumpedNd:YAGSlabLaser¥ZHOUFuzheng;CHENYouming;HUWentao;LIZhishen;SHENLiqong;CHENQiushui;FANDia... 相似文献
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We report that a deep ultraviolet (DUV) laser from the sixth harmonic of a 1064nm laser has been firstly used as light source in an ultrahigh energy-resolution angle-resolved photoemission spectroscopy (ARPES). The wavelength is 177.3nm obtained by using the second harmonic KBe2BO3F2 crystal with a frequency tripled 1064nm Nd:YVO4 laser. The large flux (10^14 - 10^15 photons/s) and narrow line width (0.26 meV) are suitable for the ultrahigh-energy resolution ARPES. The laser-ARPES can be a powerful tool to study the electronic structure at and near the Fermi level of the superconductor and correlated materials. The laser-ARPES has worked more than 500 h already. 相似文献
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LD泵浦Nd:YVO4晶体KTP腔内倍频红光激光器 总被引:4,自引:1,他引:4
报道了激光二极管泵浦Nd:YVO4晶体,临界相位匹配KTP晶体腔内倍频红光激光器.通过对激光晶体热效应的考虑,设计了热不灵敏腔,最大获得了273mW 671nm红光输出. 相似文献
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ZHANG Hengli HOU Wei FENG Baohua XU Zuyan WU Baichang CHEN Chuangtian 《Chinese Journal of Lasers》2000,9(1):30-33
A diode-pumped Nd3+:YVO4 emitting at 1342 nm and 671 nm was developed. Low concentration neodymium doped Nd:YVO4 shows excellent stability at 1342 nm. With a type-Ⅱ noncritical phase-matched LBO crystal as the intracavity frequency doubler, 890 mW of 671 nm light was obtained at 11.2 W incident pumping power, the optical-optical conversion efficiency is 7.9%. 相似文献
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A Bidirectional, Diode-Pumped, Passively Mode-Locked Nd:YVO4 Ring Laser with a Low-Temperature-Grown Semiconductor Saturable Absorber Mirror 下载免费PDF全文
We report the operation of a bidirectional picosecond pulsed ring Nd:YVO4 laser based on a low-temperaturegrown semiconductor saturable absorber mirror. Except for the laser crystal, the six-mirror ring laser cavity has no intra-cavity elements such as focusing lens or mirror. The bidirectional mode locked pluses are obtained at the repetition rate of 117.5 MHz, pulse duration of 81 ps, power of 2 × 200 mW. 相似文献
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激光二极管列阵泵浦的位相共轭板条YAG激光放大系统 总被引:1,自引:0,他引:1
采用新型的微通道冷却半导体激光二极管列阵泵浦YAG激光振荡器及板条YAG放大器,文中用CCl4受激布里渊散射作位相共轭镜,使激光在板条放大器中作多通放大,获得了高重复率下小于1.5倍衍射极限的高质量1.06μm的激光输出,其脉冲宽度为15ns,平均功率为180W。 相似文献
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报道激光二极管泵浦的掺钕氟磷酸钙固体激光器,该器件在重复频率为100Hz的准连续状态下运行,当耦合输出透过率为8%时,得到31%的斜效率,比较了FAP和YAG这两种介质的激光器的性能,理论分析得出的两者的阈值泵浦功率的相对值与实验结果相一致,并证实FAP是一种有前途的适合激光二极管泵浦的激光介质。 相似文献
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J. Chen) A.Dehn) H.J.Eichler)A.Haase) O.Mehl) 《Chinese Journal of Lasers》1997,6(4):295-299
LaserDiodePumpedUnidirectionalRingLaserResonatorwithAOMQ┐switchJ.Chen1)A.Dehn2)H.J.Eichler2)A.Haase2)O.Mehl2)(1)NationalKeyL... 相似文献
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激光二极管直接耦合泵浦的高效率Nd:YVO4/KTP腔内倍频激光器 总被引:4,自引:0,他引:4
使激光二极管的发光光面紧贴Nd:YVO4激光晶体,“面对面”直接耦合泵浦,采用KTP晶体腔内倍频,在503mW的泵浦功率下,获得532nm基横模绿光输出约73mW,光光总体转换效率为14.5%。 相似文献
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首次实现了LK泵浦Nd∶BGO固体激光器的1.064μm的激光输出,泵浦阈值功率为25mW,在连续运转状态下得到最大为40mW的TEM00模输出,光-光效率为13.3%,根据法拉第磁光效庆理论,了LD泵浦Nd∶BGO自调Q激光器的各种参数,并研制成该激光器,在该器件中,作为损耗调制元件的磁光调制器就是绕有线圈的Nd∶BGO晶体本身,实验在重复率为1KHz的条件下得到了FWHM为100ns的稳定脉冲 相似文献