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   泵浦光束 在 无线电电子学 分类中 的翻译结果: 查询用时:0.755秒
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泵浦光束
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  pump beam
    By changing the distribution of the pump beam in the gain medium and the positions of the Cr4+:YAG crystal in the cavity,the control of the pulse widths is realized easily.
    通过改变泵浦光束在激光晶体内的分布以及Cr4+:YAG晶体在腔内的位置,实现了LD泵浦Nd:GdVO4晶体Cr4+:YAG被动调Q激光器的脉宽控制。
短句来源
    In the situation that the reflection loss of the duct inwall was not in considering, even condensed the pump beam 100 times, it could realize the output efficiency of more than 70%, this was that the other coupling way hardly to accomplish.
    在不考虑内壁反射损耗的情况下,即使将泵浦光束缩束100倍,也能够实现70%以上的输出效率,这是现有其他耦合方式难以实现的。
短句来源
    The far field self-focusing phenomenon of XeCl laser output was observed on XeCl laser resonatorwith a Brillouin horror when the pump beam was focused at a suitable position over boundary surface ofliquid-solid of Brillouin medium.
    采用布里渊镜构成XeCl激光腔,移动泵浦光束焦点使其置于布里渊液体介质底部液─固界面上某一合适的位置,可观察到输出的XeCl激光在远场有自聚焦现象。
短句来源
    Soft gain aperture effect from pump beam size inside the laser crystal is crucial for obtaining stable Kerr lens mode-locking and generating ultrabroad-bandwidth pulses in Ti∶sapphire laser.
    增益介质中泵浦光束提供的软光阑效应对于实现克尔透镜稳定锁模及其超宽带光谱脉冲的产生具有非常重要的作用.
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  “泵浦光束”译为未确定词的双语例句
    Main results are as follows:(1) The factors including parameter of focused beams and parameter of medium in effecting SBS threshold were analyzed in detail.
    (1)、分析了影响SBS阈值的因素,详细讨论SBS阈值随聚焦系统参数、泵浦光束参数、介质的参数的变化关系。
短句来源
    By the ray tracing in the channel waveguide,the dependency of the launching efficiency on the relative position of the pumping beam to the waveguide is analyzed and the coupling conditions are optimized.
    通过几何光学法追迹泵浦光线在波导中的传播,系统地分析了泵浦光束与波导相对位置变化对泵浦耦合效率的影响,进而确定最佳耦合条件。
短句来源
    Study of the effect of the dirstribution of pumping light on the diode pumped solid-state laser
    泵浦光束空间分布对DPL性能的影响
短句来源
    Taking output laser power, slope efficiency as optimizing criterion, we achieve output optimal mirror transparency and pump lights parameters by numeric computing according to rate equation theory.
    依据泵浦几何理论,以输出光功率,斜效率等为优化标准,通过数值计算得出了泵浦光束,输出镜透过率的最佳参数。
短句来源
    when beamof laser diode pumped is smaller in laser crystal,optical density is higher, laser threshold islower and slope efficiency is higher; Second,mechanism with intracavity to enhance IR-Green conversion efficiency is analyzed.
    在激光阈值、斜效率的讨论中指出:当LD的泵浦光束在激光晶体中的尺寸越小,光功率密度越高,激光阈值就越低,转换效率就越高;
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  pump beam
This paper presents a theoretical study of second-harmonic generation (SHG) by a focused pump beam in the interior of an isotropic medium, experimentally observed earlier.
      
According to this model, after passing through a phase-disturbed medium or an aberration plate, the input pump beam can be resolved into two portions: a stronger undisturbed regular portion and a weaker phase-disturbed irregular portion.
      
Interference is observed between the spontaneous parametric radiation from two nonlinear crystals separated by a macroscopic air gap and excited in series by a common pump beam.
      
The interference of spontaneous parametric radiation was observed from two nonlinear crystals separated by a macroscopic layer of a linear substance and excited by a common pump beam.
      
This effect is governed by the spatiotemporal shape of the pump beam intensity (the Gaussian profile), by a high SRS gain, and by the processes of diffraction.
      
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The far field self-focusing phenomenon of XeCl laser output was observed on XeCl laser resonatorwith a Brillouin horror when the pump beam was focused at a suitable position over boundary surface ofliquid-solid of Brillouin medium.

采用布里渊镜构成XeCl激光腔,移动泵浦光束焦点使其置于布里渊液体介质底部液─固界面上某一合适的位置,可观察到输出的XeCl激光在远场有自聚焦现象。

Theory and structure of intracavity doubling,diode-pumped graeen laser are discussed.the former is theory. First ,the laser threshold and slope efficiency are discussed.when beamof laser diode pumped is smaller in laser crystal,optical density is higher, laser threshold islower and slope efficiency is higher;Second,mechanism with intracavity to enhance IR-Green conversion efficiency is analyzed.In fundamental enhanced mode,the higher mirror re-flected to fundamental wave is,the bigger multiplicity of fundamental...

Theory and structure of intracavity doubling,diode-pumped graeen laser are discussed.the former is theory. First ,the laser threshold and slope efficiency are discussed.when beamof laser diode pumped is smaller in laser crystal,optical density is higher, laser threshold islower and slope efficiency is higher;Second,mechanism with intracavity to enhance IR-Green conversion efficiency is analyzed.In fundamental enhanced mode,the higher mirror re-flected to fundamental wave is,the bigger multiplicity of fundamental wave and the higherconversion efficiency are. Third,″Green Problem″in intracavity doubling Nd:YAG laser isanalyzed.Intracavity doubling Nd:YAG exhibit amplitude fluctuations driven by a combina-tion of sum frequency between orthogonally polarized modes and nonlinear cross saturationproperties beacause of spatial hole burning. The Poincare map is used to diagrammatized chaos behavior in green laser. Some schemes how to overcome″Green Problem″and to obtainstable green light output are designed finally. The latter is laser designed . First,because emission distribution is a ellipsoid cone,a transmission system of LD beam is designed specially. Second, In order to reduce loss in cavity,a plano-convex cavity on which mirror is deposited directly is determined.YAG-KPT and YVO_4-KTP green laser are studied at last.Single transverse mode is easier to gain in YVO_4-KTP green laser than that of YAG-KTPlaser. Specifications:YAG-KTP,threshold :l5.0mW; high output power:14.4mW ;slopeefficiency:4.1%,wavelength:532nm;YVO_4-KTP,threshold:l00mW,high output power:120mW,slope efficiency:6.3%,wavelength:532nm.

主要论述了用激光二级管(LD)泵浦、内腔倍频的绿激光器的原理和结构。在激光阈值、斜效率的讨论中指出:当LD的泵浦光束在激光晶体中的尺寸越小,光功率密度越高,激光阈值就越低,转换效率就越高;在放大基波的结构中,激光腔镜对基波的反射度越高,基波的放大倍数就越大,转换效率就越高;重点讨论了内腔倍频激光器中的“绿光问题”,指出造成“绿光问题”是由于模式正交分量之间的和频效应与空间烧孔形成的横向饱和;用Poincare图分析了激光器中出现的混沌行为;对如何克服“绿光问题”,得到稳定激光输出提出了几种方案。针对LD的光形状是一个椭圆光锥,选择了用多组透镜准直、棱镜对扩束的泵浦光传输系统方案;对腔体、激光膜层作了概述,具体提出了用平凹腔结构,并把激光膜层直接做在晶体上,可以减少腔内损耗;对YAG-KTP,YVO_4-KTP组合的绿激光器作了研究。在内腔倍频YAG激光器中观察到的实验现象很好地附合理论结果。在YVO_4-KTP的绿激光器中,比内腔倍频YAG激光器较容易得到YAG-KTP组合绿激光器,最大连续输出功率为14.4mW,阈值15.0mW,光-光斜效率为4.1%。YVO_2-KTP绿激光器:最大连续输出1...

主要论述了用激光二级管(LD)泵浦、内腔倍频的绿激光器的原理和结构。在激光阈值、斜效率的讨论中指出:当LD的泵浦光束在激光晶体中的尺寸越小,光功率密度越高,激光阈值就越低,转换效率就越高;在放大基波的结构中,激光腔镜对基波的反射度越高,基波的放大倍数就越大,转换效率就越高;重点讨论了内腔倍频激光器中的“绿光问题”,指出造成“绿光问题”是由于模式正交分量之间的和频效应与空间烧孔形成的横向饱和;用Poincare图分析了激光器中出现的混沌行为;对如何克服“绿光问题”,得到稳定激光输出提出了几种方案。针对LD的光形状是一个椭圆光锥,选择了用多组透镜准直、棱镜对扩束的泵浦光传输系统方案;对腔体、激光膜层作了概述,具体提出了用平凹腔结构,并把激光膜层直接做在晶体上,可以减少腔内损耗;对YAG-KTP,YVO_4-KTP组合的绿激光器作了研究。在内腔倍频YAG激光器中观察到的实验现象很好地附合理论结果。在YVO_4-KTP的绿激光器中,比内腔倍频YAG激光器较容易得到YAG-KTP组合绿激光器,最大连续输出功率为14.4mW,阈值15.0mW,光-光斜效率为4.1%。YVO_2-KTP绿激光器:最大连续输出120mW,?

In the P8per the concept of average radii of pumped beam in a solid medium being a criteria of efficiency is presented. Dependences of slope and threshold on volume and ellipticity of pumped light are analysed. Based on the theory of mode-coupling,requirements of a coupling system for design and adjustment are deduced, Finally a coupling system consiting of a couple of expanding prisms is investigated in detail.

提出了半导体激光泵浦光束在固体增益介质内的加权平均半径是影响泵浦效率的主要参数;分析了泵浦光束尺寸、椭圆率与斜率效率和阈值的关系。从分析模式匹配理论出发,提出了光学耦合系统的设计和调整应满足的条件,最后对棱镜扩束耦合系统进行了详细计算和简单的实验研究。

 
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