In the theory part, based on the rate-equation theory of four-level system, the expressions of output power and slope efficiency under the conditions of near-threshold and deeply pumping have been given. The effects of space distribution variables(the position of focusing point, dimension of pumping light and laser light and ellipticity)on the output characteristics were also discussed.
在理论部分，首先从四能级系统的理论出发，得到了近阈值条件和强泵浦条件下的输出功率和斜效率的表达式，并详细讨论了泵光聚焦位置，泵浦光和振荡光的光斑大小、椭圆度等空间变量对输出特性的影响。
Then for the cases when the pumping power is below and above the lasing threshold, the emission intensity, excitation mode and photo distribution are analyzed from theoretical and experimental level.
然后对随机激光泵浦过程中，阈值前后的发射光强、激发模式以及光子数分布，进行了理论及实验上的分析与探讨。
Analysis indicated that the power output and the threshold pumping power was mainly determined by the radius of oscillating beam in the pumping end of the laser crystal when the radius of...
分析表明，由于透镜的变换作用，使得泵浦端面上振荡光斑与泵浦光斑的比例发生变化，在晶体后端面处泵浦光斑确定的情况下，激光器的输出功率和阈值功率主要取决于该处的振荡光斑大小，与有效模体积无直接关系
In this paper, the model which consists of homogeneous broadened three atomic level is proposed, when both the pump classical field and laser field exist we discuss the gain, frequency pulling and threshold condition of the weak pumping.
本文给出一均匀增宽的三能级原子模型，在泵浦场和激光场同时存在时，讨论了双光子激光的增益、频率位移及弱泵浦时，稳态运转的阈值条件。
The power distribution of pumping light and signal light in fiber, fiber length, rear cavity mirror reflectivity, threshold power, doping concentration and pump geometry which can influence the characteristic of the fiber laser are deeply investigated in the MATLAB simulation environment. 3.
在MATLAB仿真环境中，进一步分析泵浦光和信号光功率分布、光纤长度、后腔镜反射率、阈值功率、掺杂浓度以及泵浦结构对输出功率的影响。
M with threshold pumping power of 14.31 mW, and its slope efficiency is 2.1%, the double wavelength laser generates 9.2 mW outout power at 0.531 μm and 1.062 μm with threshold pumping power of 14.81 mW, an...
双波长激光器同时产生 0.531 μm的绿色激光和 1.062 μm的近红外激光，基横模运转，阈值泵浦功率为14.81 mW，输出功率达 9.2 mW，斜效率达 7％。
By investigating the quasi-state threshold in random media that has different number of particles for scattering, we analyze the influence of the number of particles on the pumping threshold of quasi-state modes.
通过考察具有不同颗粒数目的随机介质中的准态模阈值特性，分析了介质中散射颗粒个数的变化对随机激光器阈值的影响。
Under weaker pumping conditions stimulated thermal Rayleigh scattering would loss weaker phase information in original wavefront as same as stimulated Brillouin scattering did due to threshold effect;
由于阈值效应，弱抽运时受激热瑞利散射与受激布里渊散射一样将丢失原始波前中较弱的相位信息；
The relationship among the laser threshold, the output intensity profile and the pumping fields has been studied experimentally.
实验研究了激光器的阈值和激光器输出的光强分布与泵浦光场之间的关系。
Especially, the influences of pumping and oscillating spot size to output power and laser threshold with different gain medium are deduced.
通过数值计算了泵浦光斑和振荡光斑大小对输出功率和振荡阈值功率的影响，并与Nd：YVO4和Nd：YAG晶体进行了比较。
The laser threshold conditions of the optical bistable system with pumping
带泵浦的光双稳系统的激光阈值条件
Results show that the lasing threshold of TM modes can be lower than that of TE modes when the radius of the local pumping region is suitably selected.
结果显示，在合理选择局域抽运范围的情况下，TM偏振模式能够获得比TE偏振模式更低的阈值。
In this paper, the influence of the pumping noise and the spontaneously radiative noise on the threshold behaviour for the single mode dye lasers has been analysed by making use of WKB theory.
本文利用WKB理论分析了泵浦噪声与自发辐射对单模染料激光器阈值行为的影响。
IR output energy and the threshold of SERS as a function of the pumping energy and vapour pressure are measured and analysed.
实验测量了红外辐射强度及受激电子喇曼散射的阈值对蒸汽压、泵浦光强度的依赖关系，并进行了分析和讨论。
Measurement results of the dependence of the pulse width of the mode-locked pulses, the stability range of laser for stationary single-pulse operation and the threshold pumping power on the concentration of the absorber dye are given.
提供锁模脉冲宽度、激光器以稳定单脉冲工作的稳定性范围和阈值泵浦功率等，对吸收体染料浓度依赖关系的测试结果。
For the vicinity of threshold value conditions, the optimum reflectivity of the output mirror which makes the laser reach the maximum output power is about 0.4~0.7.For strong pumping conditions, the smaller the reflectivity of the output mirror is, the higher the output power is.
在近阈值情况下进行泵浦，输出耦合镜有一个最佳反射率，使输出功率达到最大。一般反射率应取在0.4~0.7之间，但在强泵浦情况下，输出反射镜的反射率越低越好。
Effects of overlapping factors on the gain and pumping threshold power are discussed in detail.
详细讨论了重迭因子对增益、泵浦阈值功率的影响。
Laser output curves and a threshold curve of a fast-axial-flow CO2 laser excited by RP were measured at different dimensions of laser discharge tubes, different parameters of the optical cavity, different prr ssures of CO2 mixture gases and different volume pumping velocities of the blower, respectively.
在不同的放电管尺寸、光腔参数、CO2混合气体的压力、风机的体积抽速下测得了射频激励快轴流CO2器件的激光输出特性曲线、阈值曲线。
In conventional CMOS charge pump circuits, the pumping high voltage is limited by MOS threshold voltage, so that it can not use less cascade stages to pull up a high voltage which we want to generate.
在传统的CMOS电荷泵电路中，电荷泵输出的电压受MOS管的阈值电压限制，所以当要求电荷泵的输出电压较高时，则不得不连很多阶来达到要求。
The relationship between multimode pumping power threshold and fiber length has been obtained according to this model. When the threshold pumping power reaches its minimum, the cavity length of fiber laser is then optimized.
由模型可以求出多模泵浦功率阑值与光纤长度的关系，当泵浦功率闽值最小时，对应的光纤长度为最佳光纤激光器的腔长。