Based on above methods, several solid lasers, either side-pumped or end-pumped, are set up, and the thermal lensing effect and output beam quality are optimized. Good results are obtained, and these make a solid foundation for latter studies. 3.

The laging properties of a 6 × 16 × 84 mm GGG crystal slab were measured and its thermal lensing effect was investigated under high power pumping.

测试GGG晶体板条的激光性能，并在高功率泵浦下对板条的热聚焦效应进行了研究。

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This paper concerns the thermal lensing effect that occurs as laser going through an optical window, and its influence on beam quality.

分析了高功率激光通过窗口时，引起的窗口热透镜效应及其对激光光束质量的影响。

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The thermal lensing effect changes the laser mode, and results in the mismatching of pump light to cavity mode.

热透镜效应可以改变激光的模式，并且会导致泵浦光束模式和激光谐振腔模式的不匹配。

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But even Yb: YAG crystals will still generate heat when it is working; and the revolutionary design of thin-disk laser aslo brings some new features in the thermal lens effect.

但即使是Yb：YAG晶体在其工作时也仍会产生热；而碟片激光器革命性的设计也给其热透镜效应带来了新的特点。

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But beam quality of slow axis is easily affected by space burned hole, self-focusing and thermal lens effect, which lead to big slow axis divergent angle under high output power.

然而由于其慢轴方向输出光束质量极易受到空间烧孔、自聚焦、热透镜等效应的影响，致使其在高功率工作条件下，输出的慢轴方向发散角较大。

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In the theory I analyzed quasi-three-level transition rate equation of Nd3+, energy-transfer upconversion effect and thermal lens effect, additionally the performances of single devices were studied.

理论上分析了Nd：YAG准三能级速率方程、能量传递上转换（ETU）效应、热透镜效应并对单元器件的性能进行了分析。

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There are several ways to eliminate the thermal lens effect, such as cooling, filtering, the concave end and so on, but the effect is not prominent in high power period.

消除热透镜效应的一般方法有冷却，滤光，端面修凹面等光学补偿，在高功率段效果并不显著。

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Laser techniques is surging with LD-pumped solid-state laser. But, the stability, model and beam quality of the laser are strongly affected by the thermal lens effect at high power.

LD泵浦固体激光器出现使激光器得到飞速发展，但是其在大功率运行时所表现出的强烈的热透镜效应，严重影响了激光器的稳定性和输出光的模式、光束质量。

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In high-power diode-pumped lasers, the absorption saturation, the temperature distribution and the thermal lens effect of the high-power diode-pumped laser medium, are also introduced. 2.

介绍了在高功率激光器中，增益介质的饱和吸收效应，温度场分布与热透镜效应。

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Generally speaking, thermal lens effect is determined by three elements: 1. The temperature dependence of refractive index. The change of temperature can directly change the refractive index distribution.

一般来说，热透镜效应主要由以下因素决定：1.介质折射率对温度的依赖性，温度分布的改变直接导致介质折射率的变化。

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The contrastive facular pictures show that the thermal lens effect of heat capacity operation is negative lens effect not same as convex effect of general water-cooling operation.

通过对比分析光斑变化趋势，热容方式运行的钕玻璃激光器的热透镜效应是负透镜效应，明显有别于常规方式运行的正透镜效应。

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Secondly, based on the technology of laser resonant cavity, the V resonant cavity was designed for this paper And the thermal lens effect was simulated in computer.

其次从激光的光学谐振腔技术出发，设计了较为理想的V型谐振腔，并利用计算机模拟了激光器的热透镜效应。

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In this paper, the influences of laser beam mode and thermal lens effect on the joints quality and the process of laser welding tin& plate was studied.

研究了薄板深熔焊（小孔效应焊）时，激光器输出模式及聚焦透镜的热效应对焊接工艺和质量的影响。

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Thermal lens effect in end-and-side pumped DPL

端侧面组合抽运DPL热透镜效应研究

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Thermal lens effect in tube lasing mediums

管状激光介质的热透镜效应

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Relation between thermal lens effect and rod-axis orientations in Nd: YAG

Nd：YAG中热透镜效应与棒轴取向的关系

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Thermal lens effect is still the problem for the development of Yb: YAG thin-disk laser.

热透镜效应仍是Yb：YAG碟片激光器发展道路上无法回避的问题。

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The laser work media flows fast, and it has no the thermal lens effect and damage threshold.

激光波长处于大气传输窗口，对大气变化不敏感；工作物质快速流动，不存在热透镜效应和破坏阈值；

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The Influences of Laser Beam Mode and Thermal Lens Effect on Laser Welding of Tin-plate

薄板激光焊接质量影响因素研究

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Theoretical research of modulated collinear-beam thermal lens

同轴双光束调制热透镜的理论研究

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