共查询到20条相似文献,搜索用时 140 毫秒
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报道了用Nd:YAG倍频绿光(532nm)激光器泵浦Rh6G染料溶液的实验过程,得到了最高7%的光-光转换效率。给出了532nm绿光泵浦不同深度Rh6G溶液所得到的染料激光峰值波长同时分析比较了Nd:YAG绿光激光及其泵浦的产激光器输出激光光束的空间和时间特性。 相似文献
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颜严 《激光与光电子学进展》2002,39(1):57-58
在通信、微电子和生物医学技术等领域中,紫翠宝石激光打标和材料加工应用正崭露头角。目前这些工业中占主导地位的仍是准分子、CO2和Nd:YAG激光器,随着人们对紫翠宝石激光器优良特性了解的加深,它也将汇入这个家族。准分子(EXC;308nm),紫翠宝石(ALX;380nm),CO2(CO2;10.6μm)和Nd:YAG(YAG;355nm)激光都能在微电子工业中制造并使用的陶瓷片电容器上打标,但质量各不相同,紫翠宝石最好,准分子其次,Nd:YAG再次,CO2最差。 紫翠宝石激光器最先由新泽西州联合信… 相似文献
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《大气与环境光学学报》2000,(1)
西班牙马德里自治大学的研究人员研制出一种运转在基波为1338nm的掺钕四硼酸钇铝(Nd:YAl_3(BO_3)_4)单晶体,可产生红色、绿色和蓝色的激光辐射.对基波倍频可获得红光(699nm),以可调谐钛宝石泵浦的807nm和755nm激光,分别与基波?.. 相似文献
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根据高效倍频转换对相关参数的要求,选择优良倍频晶体LBO和BBO作为腔内部频元件,利用凸-ARR非稳腔对撞脉冲锁模(CPM)Nd:YAG脉冲激光器实现高效倍频转换,倍频能量转换效率分别为65.3%和43.6%。 相似文献
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以激光二极管阵列(LDA)抽运Nd:YAG内腔倍频激光器作为抽运源,实现了全固态准连续钛宝石激光器的高功率、高效率运转。实验中,选择750~850nm宽带膜片组,钛宝石输出镜的透过率分别为T=5%、10%和15%。当532nm的抽运光为27W时,得到了6W输出功率及22.2%的转换效率。 相似文献
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高功率、高效率、全固态准连续钛宝石激光器 总被引:1,自引:0,他引:1
以激光二极管阵列抽运Nd:YAG内腔倍频激光器作为抽运源,实现了全固态准连续钛宝石激光器的高功率、高效率运转。当532nm的抽运光为24W时,得到了4.7W输出功率及19.6%的高转换效率。为了获得钛宝石激光器理想的宽带输出,分别使用了两组膜片。第一组是750~850nm,第二组是850~950nm,每组膜片都有三种透过率,分别为5%,10%,15%。由于钛宝石荧光谱线的中心波长在795nm附近,使用第一组膜片在透过率为10%的情况下获得了最大4.7W的输出功率。使用第二组膜片也获得了3W左右的输出功率,为将要进行的宽带调谐提供了必要的前提。 相似文献
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The authors characterize continuous-wave operation of a chromium-doped forsterite (Cr4+:Mg2SiO4) laser using krypton ion, Ti:sapphire, and Nd:YAG lasers as pump sources. Measurements were made pumping at 647 nm and 676 nm with the krypton ion laser, between 690 and 1010 nm with the Ti:sapphire laser, and at 1.06 μm with the Nd:YAG laser. Threshold pump powers and slope efficiencies are compared for output coupler transmissions varying between 1 and 15.5%. Room-temperature operation was only achieved using the Nd:YAG pump laser. Forsterite laser output power as a function of both temperature and pumping wavelength is discussed 相似文献
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Bartschke J. Knappe R. Boller K.-J. Wallenstein R. 《Quantum Electronics, IEEE Journal of》1997,33(12):2295-2300
We report on the investigation of efficient self-frequency doubling Nd:YAl3(BO3)4 (Nd:YAB) lasers. Pumped by 1.6 W of 807 nm diode laser radiation, the Nd:YAB laser generates a green 531-nm output of 225 mW which corresponds to a conversion of pump to visible output power of 14%. Conversion efficiencies as high as 20% could be achieved by using the diffraction-limited beam of a Ti:sapphire laser as pump source. In this case, 2.2 W of 807-nm Ti:sapphire radiation produced a 531-nm output of 450 mW. The experimental performance of these Nd:YAB lasers is in good agreement with the predictions of a numerical analysis based on rate equations adequate for lasers with self-frequency doubling 相似文献
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全固态准连续宽调谐激光器研究 总被引:1,自引:1,他引:0
介绍了一种宽调谐准连续钛宝石激光器,其采用腔内倍频准连续532 nm Nd∶YAG固体激光器作为泵浦源。通过合理的膜系设计,选用棱镜作为调谐元件,仅采用一个输出镜就获得了680~940 nm的宽调谐输出。当绿光功率为12 W对应重复频率4.5 kHz时,在中心波长795 nm处,其平均输出功率为2.2 W,光谱线宽为5 nm。 相似文献
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Goldring S. Lavi R. Tal A. Lebiush E. Tzuk Y. Jackel S. 《Quantum Electronics, IEEE Journal of》2004,40(4):384-389
Heat generation and laser performance of Nd:YAG oscillators pumped in two regimes, band pumping at /spl sim/808 nm and "thermally boosted" (TB) pumping at 884.5 nm, are compared. The crystal, pumped with a Ti:sapphire laser, lased with slope efficiencies of 52% and 57% when pumped at 802 and 884.5 nm, respectively. The heat generated during lasing was found to be 27% lower with TB pumping as compared to traditional band pumping. Moreover, the experimental results suggest that the coupling efficiency between the pump band and the upper lasing level (the quantum efficiency) is unity, and about 8% of the upper lasing level population decays via nonradiative channels. 相似文献