连续激光二极管泵浦Nd：YVO4激光器的腔内倍频

报道连续激光二极管泵浦的Ｎｄ：ＹＶＯ４激光器的腔内倍频实验结果，比较了不同掺杂浓度的Ｎｄ：ＹＶＯ４晶体的倍频输出功率，最大绿光输出功率为２２．２ｍＷ，光－光转换效率为３．５％，此外，还研究了腔内倍频的输出涨落特性。     

激光二极管泵浦Nd：YVO4晶体的高效内腔倍频绿光激光器研究

对两种Ｎｄ：ＹＶＯ４晶体的内腔倍频特性进行了研究和实验对比，Ⅱ号晶体的倍频效率比Ｉ号晶体提高一倍，斜率效率达到３１％。此外，用１Ｗ国产半导体二极管泵浦一块浓度２％的晶体，其最高输出绿光达１０８ｍＷ，降低输入泵浦功率，单频绿光功率大于１０ｍＷ。     

半导体激光泵浦Nd：YVO4激光器的1.34μm输出特性

报道了半导体激光泵浦Ｎｄ：ＹＶＯ４激光器在１．３４μｍ的输出特性，当入射的泵浦光功率为５１５ｍＷ时，最大１．３４μｍ激光输出功率达１５７ｍＷ，光－光转换效率为３０．５％，研究了激光器的纵模特性及弛豫噪声与泵浦功率的关系，发现不同的纵模具有各自不同的弛豫振荡频率。     

LD泵浦的高效率YVO4/LBO红光激光器

报道了用国产 L D泵浦 Nd∶YVO4产生的 1.34 2 μm的输出。首次用 类临界位相匹配 L BO腔内倍频实现了 6 71nm的红激光输出。当泵浦注入功率为 80 0 m W时 ,倍频红激光基模输出为 5 2 m W,光光转换效率达 6 .5 %。光束经扩束准直后测得偏振比高于 10 0∶ 1。在输出功率为 40 m W时 ,48h连续工作稳定性优于± 2 %     

单频运转的Nd：YVO4激光器

报道了激光二极管纵向泵浦单频运转的Ｎｄ：ＹＶＯ４激光器，用波长为８０９ｎｍ激光二极管的连续输出功率６６０ｍＷ泵浦，获得１０６４ｎｍ，功率为１５５ｍＷ连续单频输出，泵浦阈值２２６ｍＷ，斜率效率３３．８％，线宽小于１０ＭＨｚ．     

LD泵浦的高效率YVO4/LBO红光激光器

报道了用国产LD泵浦Nd∶YVO4产生的1.342μm的输出.首次用Ⅱ类临界位相匹配LBO腔内倍频实现了671nm的红激光输出.当泵浦注入功率为800mW时,倍频红激光基模输出为52mW,光光转换效率达6.5%.光束经扩束准直后测得偏振比高于100∶1.在输出功率为40mW时,48h连续工作稳定性优于±2%.     

大功率激光二极管抽运Nd：YVO4激光器的特性研究

通过对Ｎｄ：ＹＶＯ４晶体吸收特性的研究,对激光输出功率、斜效率与抽运动率的关系进行了理论分析,发现Ｎｄ：ＹＶＯ４激光器在磊功率激光二极管抽运的条件下,激光斜效率随抽运功率的增加而减小。实验表明,理论结果与实验符合得较好。选用２Ｎｄ＾３＋掺杂的原子数分数为０．５％、通光长度为５ｍｍ的Ｎｄ：ＹＶＯ４晶体,在抽运功率５Ｗ左右时,输功率为３Ｗ左右的,获得了７１．５％的激光斜效率。     

激光二极管泵浦Nd：LMA激光器的连续波输出研究

报道有一个３Ｗ激光二极管端面泵浦Ｎｄ：ＬＭＡ激光器，实验采用三镜折迭像散补偿腔。在１０５４ｎｍ波长，激光器连续输出功率达６２０ｍＷ，斜率效率为５０％，光－光转换效率２０％，在１０８３ｎｍ波长处，激光器连续输出功率为６４ｍＷ，斜率效率为６％，光转换效率２．１％。     

二极管泵浦1064nm单频Nd∶YVO_4激光器的研究

报道了一种用国产激光二极管泵浦的1064nm单频Nd∶YVO4红外激光器的设计。利用布氏片和石英晶体组合构成的双折射滤光片技术,在泵浦功率为800mW时,实现了功率为360mW的1064nm红外单频输出。测量结果表明,偏振比超过了1000∶1,功率稳定性优于0 5%,振幅噪声小于0 1%。     

激光二极管端面抽运的1342nmNd：YVO4激光器

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％。     

二极管端面泵浦的附加脉冲锁模的Nd：YLF激光器

研究了二极管端面泵浦的附加脉冲锁模的Ｎｄ：ＹＡＧ激光器并分析了脉冲压缩原理及自启动机制,在最大泵浦功率为２．４Ｗ时,得到重复频率为１３４ＭＨｚ、脉宽为２ｐｓ、有效输出功率７６ｍＷ、相应峰值继２８３Ｗ、波长为１．０５３μｍ、波长为１．０５３μｍ的稳定的连续模脉冲序列。     

单频环形腔Nd:YVO_4激光器实验研究

采用"8"字结构环形谐振腔,进行了连续激光二极管单端泵浦Nd:YVO4激光器的实验研究。在室温下当泵浦功率为25.4W时,获得稳定1064nm单频激光输出功率为7.7W,光-光转换效率30.3%;光束质量为M2X=1.15和M2Y=1.18;3h功率不稳定度优于1%。     

A Laser-Diode-Pumped 7.36 W Continuous-Wave Nd：YVO4 Laser At 1342 nm

An efficient and high-power diode-laser single-end-pumped Nd：YVO4 laser with cw emission at 1342nm is presented. With a crystal single-end-pumped by a fibre-coupled diode laser, an output power of 7.36 W is obtained from the laser cavity of concave-convex, eorresponding to an optical-to-optical conversion efficiency of 32.8%. The laser is operated in TEM00 mode with small rms noise amplitude of 0.3%. This represents, to the best of our knowledge, the highest power obtained from a diode-laser single-end-pumped Nd：YVO4 cw laser at 1342nm 80 far.     

Blue Generation in a Periodically Poled LiTaO3 by Frequency Tripling and 1342 nm ND:YVO4 Laser

We report on an efficient blue light generation in periodically poled LiTaO3 by the frequency tripling of a quasicontinuous 1342nm Nd:YVO4 laser.The period of the sample was 14.778μm.Blue light with an average power of 138mW was generated from a 18 mm long crystal in a single-pass process under an average fundamental power of 713mW.The internal conversion efficiency was 19.3%.     

激光二极管泵浦Nd：FAP激光器

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。     

激光二极管侧面泵浦的高效率Nd：YAG激光器

用准连续激光二极管列阵侧面泵浦Ｎｄ：ＹＡＧ固体激光器，获得３９．５ｍＪ的静态输出，器件重复频率为５０Ｈｚ，效率最高达３９．５％，对该器件进行了细致的实验研究，验证了理论计算的正确性，并对实验结果进行了分析。     

Diode-end-pumped 1D top-hat Nd：YVOa slab laser

A one-dimensional （1D） top-hat, diode-end-pumped, electro-optically Q-switched Nd：YVO4 slab laser is demonstrated. Under the pump power of 175.5 W, 26.3-W output power is obtained with the repetition rate of 5 kHz and the pulse width of 4.3 ns. The output beam has a good top-hat beam profile in both the near field and the far field.     

6.5-ns actively Q-switched Nd：YVO4 laser operating at 1.34 μm

A novel design of multimode light power splitter is proposed and fabricated by using secondary asymmetric Y branches.An almost equally divided output among output terminals is obtained experimentally.Maskless laser direct writing technique is applied in the fabrication process to facilitate the formation of power splitters by ultraviolet curable polymer.The analysis of the performances of both four-port and eight-port devices shows that these two dividers obtain a power splitting uniformity of more than 95%.