共查询到20条相似文献,搜索用时 125 毫秒
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LD汞浦Nd:YAG激光器的连续激光输出和高重复率调Q 总被引:1,自引:1,他引:0
用连续输出1W国产多量子阱激光二极管列阵(MQW-LDA)泵浦Nd:YAG固体激光器,连续激光输出最大功率为112mW,光-光效率为10.6%,斜效率为20%,实现了连续泵浦高重复频率(1kHz,4kHz,10kHz)调Q输出,最大峰值355W,最大平均功率为43.7mW。 相似文献
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报道了用两个1.5W激光二极管偏振耦合端面泵浦的声光调Q内腔倍频Nd:YAG激光器。输出532nm绿光重复频率1KHz时,最大峰值功率为2.23KW,最窄脉宽为18ns,平均功率40mW。最高重复频率30KHz。重复频率15kHZ时,最高平均率128mW。对声光调Q内倍频Nd:YAG激光器的动态特性进行了理论分析及计算。 相似文献
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激光二极管泵浦的高重复频率Nd:YAG激光器 总被引:2,自引:1,他引:1
报道两个1.5W连续激光二极管端面泵浦的声光调QNd:YAG激光器,输出激光脉冲的最高重复频率为30kHz重复频率1kHz时,最窄脉宽为12ns,最高峰值功率为12.1kW。 相似文献
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以10kHz重复率产生23W输出的小型二极管抽运激光器LishtSolutions公司的研究人员用小型二极管抽运CWNd:YAG激光器以10kHz的重复率产生出23W偏振调Q输出。这种输出具有足够高的光束质量和可以从外部有效地产生倍频的短脉宽。这种装... 相似文献
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报道准连续60W激光二极管列阵侧面泵浦Nd:YLF固体激光器的研究结果,当器件的动转重复频率为30Hz时,得到4.4mJ的1.047μm激光输出,光-光转换效率达到18.3%,斜率效率达24.4%。声光和电光调Q,得到能量为2.2mJ,脉宽分别为50ns和30ns的脉冲输出。 相似文献
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《中国物理快报》2016,(6)
We demonstrate a cw and actively Q-switched Er.LuAG laser resonantly dual-end-pumped by 1532 nm fibrecoupled laser diodes.A maximum cw output power of 1.9W at 1650.3nm is obtained at a pump power of 25.5 W,corresponding to a slope efficiency of 43.3%.In the Q-switched regime,the maximum pulse energy of3.51 mJ is reached at a pulse repetition rate of 100 Hz,a pulse duration of 90.5 ns and a pump power of 25.5 W.At the repetition rate of 400 Hz,the output energy is 2.12 mJ,corresponding to a pulse duration of 125.4 ns. 相似文献
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A diode-end-pumped high repetition rate, high peak power acousto-optical (AO) Q-switched 946 nm Nd:YAG laser was demonstrated
in this paper. In our experiments, a 20 mm miniature acousto-optical Q-switch was employed in a 45 mm linear laser cavity
for generating the short laser pulse. At a repetition rate of 10 kHz, a maximum average output power of 2.9 W was achieved
with a pulse width of 24.4 ns, giving a peak power of 11.9 kW. To the best of our knowledge, this is the highest peak power
946 nm Nd:YAG laser at high repetition rate operation. Moreover, pulse train with good stability was also obtained at the
repetition rate of 50 kHz. At an incident pump power of 22.3 W, up to an average output power of 3.5 W pulsed 946 nm laser
was generated at 50 kHz with a pulse width of 69 ns, corresponding to an optical conversion efficiency of 15.7% and an average
slope efficiency of 24.1%, respectively. 相似文献
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高效LD侧面泵浦腔外倍频绿光激光器 总被引:1,自引:0,他引:1
为满足激光加工、激光彩色显示、数据存储、医疗卫生和科研等领域对绿光激光器的需要,研制了一台高倍频效率、窄脉宽侧面泵浦腔外倍频的YAG/LBO绿光激光器。分析并计算了腔外最佳聚焦参数,确定了透镜的最佳聚焦焦距。实验中,利用808nm激光二极管侧面泵浦Nd:YAG晶体,使用BBO晶体进行加压式调Q,采用四分之一波片补偿Nd:YAG晶体的热退偏,最终实现了重复频率1kHz、输出功率10.7W的1 064nm输出,最大单脉冲能量为10.7mJ。在此基础上,采用Ⅰ类温度相位匹配LBO晶体对基频光进行腔外倍频,获得了重复频率1kHz、脉宽21ns、最大输出功率6.04W的532nm准连续绿光输出,倍频效率高达59.3%。 相似文献
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研制了输出功率达瓦级的351 nm准连续紫外激光器。激光器采用激光二极管(LD)端面抽运Nd∶YLF晶体和声光调Q技术,实现了1 053 nm准连续基波振荡。在结构简单的V型腔中,两块Li B3O5(LBO)晶体对基频光进行二倍频和三倍频,获得了高功率351 nm准连续紫外激光输出。在LD抽运功率为14 W、声光调Q激光器的调制频率为1 k Hz的工作条件下,得到351 nm紫外激光平均输出功率为1.12 W、脉冲宽度为34 ns、单脉冲能量为1.12 m J、峰值功率达32.94 k W。LD抽运光到351 nm紫外激光的光-光转换效率达到8%,电光效率为3.4%,光束质量良好。 相似文献
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A diode-pumped actively Q-switched Nd:GdVO4 green laser with periodically poled KTP (PPKTP) and Acoustic-optic (AO) modulator has been realized. The dependences of pulse energy, pulse width, and peak power on incident pump power are measured. At the pump power of 4.1 W and repetition rate of 10 kHZ, we can obtain a 19.2 ns pulse with pulse energy of 0.11 mJ and peak power of 5.8 kW, which are almost three times of that in the conventional KTP green laser, respectively. A rate equation model is introduced to theoretically analyze the results obtained in the experiment, in which the Gaussian spatial distribution of the intracavity photon density is taken into account. The numerical solutions of the rate equations agree with the experimental results. 相似文献
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A diode-pumped passively mode-locked Nd:YVO4 laser with a five-mirror folded cavity is presented by using a semiconductor saturable absorber mirror (SESAM). The temperature distribution and thermal lensing in laser medium are numerically analyzed to design a special cavity which can keep the power density on SESAM under its damage threshold. Both the Q-switched and continuous-wave mode-locked operation are experimentally realized. The maximum average output power of 8.94 W with a 9.3 ps pulse width at a repetition rate of 111 MHz is obtained under a pump power of 24 W, correspondingly the optical slope efficiency is 39.2%. 相似文献
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对激光二极管端面抽运Tm,Ho∶YLF晶体声光调Q激光器的激光特性进行了研究。根据粒子跃迁和能量传递过程,在考虑能级传递上转换的前提下,建立了Tm,Ho∶YLF脉冲激光器的速率方程,得到了初始反转粒子数的解析表达式,分析了能量传递上转换效应对激光上能级反转粒子数的影响。在室温下实现了2 μm波长激光的脉冲输出。实验上给出并分析了Tm,Ho∶YLF脉冲激光器的平均输出功率、单脉冲能量和脉冲宽度随抽运功率以及声光Q开关调制频率的变化关系。在抽运功率为2.8 W,重复频率为9 kHz时,获得了平均输出功率为189 mW的激光脉冲,光光转换效率为6.8%。在重复频率为1 kHz时,得到最大单脉冲能量为65 μJ,峰值功率为0.17 kW。 相似文献
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报道了采用激光二极管(LD)端面泵浦Nd:YVO4双端键合晶体高平均功率高斜效率1 064 nm声光调Q激光器。通过对大功率泵浦情况下激光晶体热透镜效应进行分析和估算,优化了模式匹配及热稳腔结构参数,实现了稳定的高功率高斜效率准连续脉冲激光输出。在泵浦功率46.8 W、最高重复频率50 kHz下,获得最大平均输出功率17.6 W,光-光转换效率为37.6%,斜效率达70.1%,脉冲宽度51.3 ns;在最低重复频率10 kHz下,获得最大单脉冲能量0.91 mJ,峰值功率为46.2 kW,脉冲宽度为19.8 ns。 相似文献