脉冲能量

在相同输入脉冲能量下，双程放大能量增益系数随tp的增加或to的减小而下降。

We find K_d decreases with the increase oft_p or the decrease of t_o for same input pulse energy .

还推导了调Q输出时的峰值功率、脉冲能量和脉宽等，并对调Q理论作了最佳化分析。

We also deduced the peak power , laser pulse energy and pulse width for the Q switch laser , and optimized the Q switch theory .

测量了不同泵浦功率下激光器的平均输出功率、脉冲能量、调Q脉包络的脉宽，估算了锁模脉冲宽度、锁模脉冲的调制深度。

The average output power and the pulse width of the Q-switched envelope have been measured .

基于三种细导线目标数值计算散射场的仿真实验表明，相比于传统E脉冲能量识别数，本文方法取得了很好的识别效果。

Simulations using numerically calculated scattering response based on three thin wire target demonstrate that the method proposed in this paper is surprier to the traditional E-pulse .

脉冲能量为0.1μJ、起伏小于0.5%，斜率效率为24%。

Pulsed energy is about 0.1 μ J and the fluctuation is less than 0.5 % . The slope efficiency is 24 % .

初始脉冲能量变化对产生的ASE短脉冲宽度影响较小。

The initial energy of ASE pulse has little influence on the output pulse width .

电子管式调Q电路工作稳定，退压沿70ns左右，但空间体积大，激光脉冲能量较低；

The electronic tube Q-switch circuit works stably , the voltage fall time is 70 ns , but its space cubage is large and laser pulse energy is low .

目的为研究平均功率、照射时间、脉冲能量、脉冲频率等激光参数对Ho∶YAG激光生物效应的影响。

Objective To evaluate the influence of power , irradiation time , pulse energy and frequency of pulsed Ho ∶ YAG laser on its biological effects .

为了实现高脉冲能量、窄脉冲宽度和高重复率的激光输出，设计了新型的IGBT氙灯斩波放电电路和雪崩管电光Q开关电路。

In this paper , we designed the new IGBT chopper circuit of xenon lamps , and also designed the new avalanche transistor series electrooptic Q-switch circuit .

脉冲能量为200μJ，脉冲幅度起伏小于±3%，信噪比大于10~7。

The pulse energy is about 200 uJ , the amplitude fluctuation is less than + 3 % , and the signal to noise ratio is better than 107 .

脉冲能量控制PECC电源的研究

The Research on Pulse - Energy - Controlled PECC Power Supply

从激光器速率方程出发，介绍了调Q激光器峰值功率、脉冲能量与脉冲的时间特性参数，对调Q的物理实质进行分析。

Based on the rate equations , the peak power , the pulse energy and the time behavior of Q-switched laser are deduced . ; the physical essence of characters of A-O Q-switching are also analyzed .

利用单块非平面环形腔单频激光器作为种子振荡信号，注入到高重复频率Q开关构成的从动激光器，获得单脉冲能量大于5mJ、脉冲宽度40ns的单纵模振荡脉冲激光输出。

The injected seed laser is a monolithic non-planar single frequency ring laser . The slave laser is a Q-switched resonator with high repetition frequency . Single frequency pulse laser having a pulse width of 40 ?

U管圆锥泡法创造了发光功率和单脉冲能量的新记录，并首次用条纹相机得到了时间分辨发射光谱。

New records for the luminescence power and energy emission from single events have been created , and the first time-resolved emission spectrum of sonoluminescence has been obtained with a streak camera by the U tube method .

采用分布式的拉曼放大能对DDF的绝热压缩起到很好的优化效果，获得更高的压缩因子和脉冲能量；

Adopting the DRAs can improve the compression effects in DDF and get a higher compression factor and pulse energy ;

用数值方法研究了准连续LD泵浦的被动调Q激光器的输出特性，得到了单脉冲能量和脉宽与泵浦速率、输出镜反射率的关系。

The properties of output pulses were studied by numerical methods , and the variation of single pulse energy and pulse width with the pump rate or reflectivity of the output coupler was obtained . 3 .

通过对调Q反转粒子数密度的求解，获得了调Q激光器输出的一定脉冲能量与腔内损耗、所需最小Q开关的衍射效率和输出镜的反射率等的关系公式。

Through soluting the population inversion density , the relationship between a certain output pulse energy and cavity loss , the necessary minimum diffraction efficiency of Q-switch , the reflectivity of output mirror and so on , are acquired .

实验通过采用最大输出脉冲能量为100J的TEACO2激光器，研究了从13~80J的激光脉冲能量对大气呼吸模式激光推进冲量耦合系数的影响。

A 100 J TEA CO_2 laser was employed to study the effects of variety of pulse energy from 13 J to 80 J on the momentum coefficient for air-breathing mode .

雪崩管串联式调Q电路退压时间大约为20ns，输出激光脉冲能量高，脉宽窄；

Avalanche transistor series Q-switch circuit has rapid fall time ( 20 ns ) of voltage , high laser pulse energy and narrow laser pulsewidth .

设计了八木、四臂螺旋以及喇叭三种波段的典型天线，建立了强电磁脉冲能量对上述星载天线的毁伤数学模型，并据此给出了基于FDTD法的仿真算法。

Thirdly , design three bands of typical antenna , such as yagi , four arm spiral and horn , and establish mathematical model , and then give the simulation algorithm based on FDTD method .

另外，我们也提出了不基于GDD优化的设计方法，包括基于对脉冲能量聚合的直接优化的时域设计方法。

Alternatively , design approaches not based on GDD optimization are described , including time-domain design approaches based on direct optimization of pulse energy concentration .

Nd：YAG陶瓷／Cr：YAG被动调Q实验采用了三块不同初始透过率的饱和吸收体，所得到的最大脉冲能量、最短脉冲宽度和最高峰值功率分别为：188μJ、3.16ns和59.5kW。

When the Cr : YAG crystal was used as saturable absorber , the largest pulse energy , shortest pulse width and highest peak power were measured to be 188 μ J 、 3.16 ns and 59.5 kW , respectively .

通过速率方程的求解模拟分析了上转换效应对连续运转Ho激光器输出功率、斜率效率和阈值功率的影响以及对调Q运转Ho激光器单脉冲能量、脉冲宽度和峰值功率的影响。

The rate equation was solved to analyze the influence of upconversion effect to the output power , slope efficiency and threshold power in CW operation and the pulse energy , pulse width and peak power in Q-switched operation .

理论计算表明：激光触发SF6-N2混合气体间隙开关的延迟时间随SF6含量的增加呈上升趋势，而随激光脉冲能量、充气压力等的上升呈下降趋势。

The delay of laser triggered SF_6-N_2 mixture switch increases as the percentage of SF_6 in the mixture increases , and decreases as the energy of laser pulse , or the pressure increases .

使用Nd：YAG激光器烧蚀金属Al靶获得等离子体，利用光谱时空分辨技术，在52mJ～145mL/pulse激光脉冲能量范围内，关于激光脉冲能量对激光诱导等离子体辐射特征的影响进行了研究。

The effects of laser pulse energy on the emission characteristics of laser induced plasma were studied with a Q switched Nd : YAG laser over an energy range of 52 mJ to 145 mJ in Argon atmosphere , During which time and space resolved spectroscopy was used .

通过KTP晶体腔外倍频，获得了单脉冲能量16.8mJ，脉宽5.6ns的绿光输出，倍频效率56.6%。

By using a KTP as a frequency doubling crystal , an energy of 16.8 mJ , pulse width of 5.6 ns green output is achieved , optical optical efficiency is 56 6 % .

研究了饱和吸收体小信号透过率对激光稳定性的影响，得出使用小信号透过率T0小的V∶YAG可使激光脉冲能量和重复频率稳定的结论。

The relationship between the stability of pulse laser and the small signal transmission of V ∶ YAG was studied . The results show the laser is stable when the V ∶ YAG with smaller signal transmission is used .

实验中观察了1s内的脉冲能量输出的波动情况，在开始工作的时候单脉冲能量输出为1J，在1s后单脉冲能量输出下降到开始的50%。

In the experimental examination , the output of single pulse energy was 1 J at the beginning , after 1 s operation it fell down to 50 % .

本文利用Nd：YAG激光器对0.4mm厚的CVD金刚石膜进行切割，用扫描电子显微镜（SEM）研究了激光脉冲能量、脉冲宽度和脉冲频率等工艺参数对金刚石厚膜切割的影响。

Nd : YAG laser machine is used for cutting CVD diamond thick film ( 0.4mm ) . The influences of pulse power , pulse length and pulse frequency of the laser on the cutting quality are studied by SEM .

最终获得了重复频率40Hz、单脉冲能量大于400mJ、近衍射极限的高光束质量激光输出。

More than 400 mJ , 40 Hz output laser with near diffraction limited beam quality was obtained .