激光二极管双路泵浦的固体激光器

首次用国产量子阱激光半导体二极管双路端面泵浦Ｎｄ：ＹＬＦ激光器，得到波长１．０４７μｍ、能量６＿μＪ、峰值功率１２０ｍＷ的激光输出．实验结果表明：双路同时泵浦输出功率大于两单路分别泵浦输出功率相加，起伏小于３％，与理论分析基本一致。     

LD泵浦Nd：YAG激光器的连续激光输出和高重复率调Q

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，最大峰值功率为３５５Ｗ，最大平均功率为４３．７ｍｗ．     

蓝光波段染料Coumarin461掺杂的凝胶材料的光学性质

采用溶胶－凝胶技术合成了掺杂蓝光段激光染料Ｃｏｕｍａｒｉｎ４６１的ＳｉＯ２基固体材料，用波长为３０８ｎｍ的Ｘｅｃｌ激光器做泵浦源，横向泵浦，获得了峰值波长为４６５ｎｍ的蓝光波段激光输出，在泵浦光强度为１０ｍＪ时激光输出达到０．５３ｍＪ，转换效率为５．３％。     

二极管激光侧面泵浦腔同人倍频Nd：YAG板条激光顺研究

用准连续６０Ｗ的二极管激光列阵侧面泵浦“之”字形Ｎｄ：ＹＡＧ板条激光器，当泵浦功率为４５Ｗ，脉宽为４００μｓ时，得到３．５ｍＪ的激光输出。用ＫＤ．Ｐ电光开关调Ｑ，得到１８ｎｓ、２ｍＪ的脉冲激光输出，用ＫＴＰ晶体作腔内倍频，得到１５ｎｓ、０．８５ｍＪ的二次谐波激光输出。     

可控制变频率微片激光器

 用20 W光纤耦合LD作为泵浦光源，对Nd^{3+sup>:YVO_{4/sub>微片进行了增益开关实验，获得了可控制变重复频率（1 Hz～25 kHz）的调Q激光输出。输出脉冲激光的宽度为16 ns，输出的峰值功率在几W。从速率方程出发进行了增益开关理论研究，通过数值解，分析了输出激光特性：当泵浦电流高于产生单脉冲的电流时，增加泵浦电流将在一个泵浦脉宽中出现多个激光脉冲输出；增加泵浦脉宽，将在一个泵浦脉宽中出现多个激光脉冲输出，泵浦脉宽越大，子脉冲个数越多；当增加重复频率时，输出与泵浦激光重复频率完全一致的激光脉冲，但也将在一个泵浦脉宽中出现多个激光脉冲输出。}}     

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列阵泵浦Nd:YAG连续激光器

介绍了一种二极管侧面泵浦的Nd:YAG连续激光器，采用了简单，实用的侧面泵浦结构，获得了37．9W的连续1064nm的激光多模输出，斜效率为31．5％，光准效率为23．7％，文中还对该泵浦头的热透镜效应作了测试。     

LD汞浦Nd：YAG激光器的连续激光输出和高重复率调Q

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。     

同步泵浦染料激光中的频率啁啾计算

利用光场的自洽模型，将同步泵浦染料激光器的输出光脉冲的频率啁啾β作为光波场的位相参数，推导出适合于同步泵浦染料激光器的锁模方程．由此方程出发，求出输出光脉冲频率啁啾β的解析表达式，为实验上减小脉冲的频率啁啾，获得符合变换极限的短脉冲提供依据．     

LD双端端面泵浦的高功率连续单频Nd:YVO4激光器

研制了高功率连续单频Nd：YVO4激光器。在考虑激光晶体因吸收泵浦光而产生的热透镜效应的基础上，设计了六镜环行激光谐振腔，采用两个光纤耦合输出的高功率激光二极管双端端面泵浦结构，在总泵浦功率为32．3W的情况下，得到10．4W的单频1．064μm红外输出，斜效率为43．7％，长期功率稳走性优于1％(4h)，激光器自由运转时的频率漂移小于150MHz（1min)。     

LD泵浦的Nd：YAG微片激光器实验研究

详细讨论了激光二极管泵浦的Ｎｄ：ＹＡＧ微片激光器输出的纵，横模特性，当泵浦功率小于７４０ｍＷ时，输出为单纵模，基横模，线宽达到仪器分辨极限２５ＭＨｚ。     

序列脉冲倍频YAG激光器泵浦的氧气受激拉曼散射研究

对序列脉冲倍频ＹＡＧ激光器泵浦的氧气受激拉曼散射进行了研究。对氧气的受激拉曼散射池的热传导过程进行了数值模拟计算，实验研究了序列脉冲倍频ＹＡＧ激光器泵浦情况下氧气受激拉曼散射的热效应问题。     

光泵亚毫米波激光的理论模型及计算方法(Ⅰ)——半经典密度矩阵理论

该作者曾对光泵亚毫米波激光作过系统深入地的研究。重点论述在小型光泵亚毫米波激光的理论研究中所应用的量子系统的半经典密度矩阵理论。     

积分球腔内BaTiO3：Ce晶体的自泵浦相位共轭增强现象的观测

报道了聚四氟乙烯积分球腔内光折变晶体ＢａＴｉＯ３：Ｃｅ在Ｈｅ－Ｎｅ激光作用下产生自泵浦相位共轭的增强现象，并对实验结果进行了分析。     

Pulse linewidth and lifetime broadening study of multi-pulse pumped distributed feedback dye lasers

Results on characterization of spectral width and lifetime broadening mechanism in picoseconds multiple-pulse pumped distributed feedback dye lasers (DFDL) is presented. An experimental study was carried out to investigate the impact of pump pulse energy, dynamic grating length and dye concentration on the spectral width and lifetime characteristics of single and multi-pulse pumped DFDL. To implement this study the solution of Rh6G in ethanol was pumped by 2nd harmonic of a passively q.switched and modelocked ND:YAG laser. Further to study the effect of grating chirp factor on spectral characteristics of the luminescence spectra of the DFDL, the dye cell was pumped by multiple time delayed pulses. Results show that pump power, grating length, dye concentrations and temperature effects cause spectral and life time broadening of simultaneously oscillating multiple lasing lines.     

激光二极管端面纵向泵浦Nd:YVO_4激光器的热效应研究

针对激光二极管端面纵向泵浦Nd:YVO4激光器,本文理论和实验详细研究了Nd:YVO4晶体的热透镜效应。在激光二极管的中心波长分别为808nm和880nm及分别采用单端端面纵向泵浦和双端端面纵向泵浦结构情况下,实验测量了Nd:YVO4晶体的热透镜焦距,实验结果和理论预测基本吻合。同时在泵浦功率60W时获得了18.8W的连续基横模激光输出。     

Nd:YAG薄片激光器热致波前畸变

 理论分析了激光二极管端面泵浦薄片Nd:YAG 激光器的激光介质热效应对波前相位分布的影响，给出了薄片激光器波前热畸变的计算公式。数值模拟了理想均匀泵浦及4阶超高斯泵浦下的波前分布，分析了介质厚度和泵浦均匀性与波前畸变量的关系。研究表明，介质越薄，激光泵浦光均匀性越好，泵浦功率密度越小，激光波前畸变越小；与介质厚度、泵浦功率密度相比，泵浦光光强分布对波前的影响更为显著。     

Excimer lasers and laser systems

The results of the experimental study of UV lasers and laser systems pumped by different methods are presented. Two lasers were pumped by electron beams from Marx generators. Three lasers were pumped by transverse discharge with UV preionization. An XeCl laser pumped by electric discharge using a generator with inductive energy storage and semiconducting opening switch is investigated. The highest laser radiation energies of 2000, 90, and 0.7 J have been obtained at 5=308, 249, and 222 nm, respectively. The amplification of the laser beam from the master oscillator under conditions of strong amplified spontaneous emission is considered. In particular, formation of the output from an amplifier in the wings of the XeCl laser band and in the case of a large-aperture XeCl amplifier are investigated. The output beam divergence in these experiments was measured to be ~10^-4 rad.     

二极管侧泵浦单横模1kHz电光Q开关激光器

 本文介绍了二极管侧泵浦Nd:YAG板条1kHz重复频率Q开关激光器的研制,实验获得最大单脉冲能量0.712mJ,脉宽小于10ns的输出。对Nd:YAG板条进行了三种冷却方式的比较实验,实验证明DPL在高重复频率工作时,激光介质的热效应是影响高重复频率工作的激光器效率的重要因素。     

Comparative study of the output characteristics of ytterbium-doped double-clad fiber lasers with different pump schemes

The output characteristics of ytterbium-doped double-clad fiber lasers (YDCFLs) with different pump schemes are compared numerically in detail. The results show that the backward pumped YDCFL with pump reflection for double-pass scheme has the highest conversion efficiency, the most suitable for saving pump powers. As a result of the maximum output power per meter occurring in the forward pumped YDCFL with pump reflection, it means that this kind of pump scheme is preferable for saving YDCF lengths. Moreover, the output characteristic of the bi-directional pumped YDCFL is between forward and backward pumped ones.