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It is useful for selecting reasonable system parameters through it.For the data process in DIAL system, we discussed the combined effects of temporal autocorrelation and lasers cross correlation and signal averaging.

对于DIAL系统中的数据处理，本文着重讨论了信号平均技术和激光器回波信号时域自相关以及激光器互相关对CO2 DIAL系统测量灵敏度的影响。

And only modulate the direction of the tensor d33 periodically. So QPM enlarge the application range of the crystal in existence. Presently diode pumped all-solid-state lasers have been developing quickly, which provides an ideal pump source for QPM.

近年来，随着激光二极管技术的发展，小功率全固态激光器已经十分成熟，为准相位匹配提供了优质的泵源，因此，小功率全固态激光器的准相位匹配频率变换成为目前的一个研究热点。

A new realtime temperature measurement system using lasers InGaAs/I and pyroelectric detector LiYaO3 of replacing mechanical modulating disk by liquid crystal valve was explored.

结果表明，利用液晶调制器改进后的测温系统在给定的温度范围中，测量精度均有明显的改善，符合测量要求。

This problem is also important and valuable in Nonlinear Optics. It will be very helpful to understand how the aberrations affect the course of three- wave mixing, such as the change of conversion efficiency, the distribution of intensity and phase.Small signal solution of aberrated second harmonic generation is deduced from three-dimension three wave coupling functions. The numerical work gives out lot of results of different aberrations. The effects of the fundamental waves aberrations, which will change the conversion efficiency, distribution of intensity and phase in the frequency conversion, is analyzed. It shows that when walk-off and diffraction effects could be ignored approximately estimation of the phase distribution of second-harmonic wave could be done. The far field divergent angle and second moment radius of harmonic wave will vary with the aberration of fundamental wave, but the far field divergent angle will be obviously smaller than that of fundamental wave. The phase distribution of both fundamental and harmonic wave is measured using Hartmann-Shack wave front sensor in the experiment with 1064nm and 790nm lasers, respectively. Results are given.

首次从三维三波相互作用方程组推导得到了位相畸变光束倍频的小信号解；通过建立国防科学技术人学研究生院学位论文三维数值模型，编写相应仿真程序，首次得到了位相畸变光束倍频过程的大量计算结果，深入细致地研究了位相畸变光束经非线性光学频率变换后谐波的转换效率、光强分布、位相分布以及影响它们的各种因素；得出谐波的远场发散角和光斑二阶矩的变化规律会因为基波像差的不同而不同，但谐波的远场发散角明显地比相应基波的小的结论；得到了在走离效应和衍射效应等影响许多因素可以忽略的情况下，位相畸变传递到二次谐波的估算式；举例分析了KDP三倍频方案中，基波位相畸变对二次谐波和三次谐波的影响；实验工作中，用哈特曼一夏克传感器分别对IO64nm倍频过程和790飞秒超短脉冲倍频过程中的基波和谐波的位相分布进行了测量，给出了相应结果。

Small signal solution of aberrated second harmonic generation is deduced from three-dimension three wave coupling functions. The numerical work gives out lot of results of different aberrations. The effects of the fundamental wave's aberrations, which will change the conversion efficiency, distribution of intensity and phase in the frequency conversion, is analyzed. It shows that when walk-off and diffraction effects could be ignored approximately estimation of the phase distribution of second-harmonic wave could be done. The far field divergent angle and second moment radius of harmonic wave will vary with the aberration of fundamental wave, but the far field divergent angle will be obviously smaller than that of fundamental wave. The phase distribution of both fundamental and harmonic wave is measured using Hartmann-Shack wave front sensor in the experiment with 1064nm and 790nm lasers, respectively. Results are given.

首次从三维三波相互作用方程组推导得到了位相畸变光束倍频的小信号解；通过建立三维数值模型，编写相应仿真程序，首次得到了位相畸变光束倍频过程的大量计算结果，深入细致地研究了位相畸变光束经非线性光学频率变换后谐波的转换效率、光强分布、位相分布以及影响它们的各种因素；得出谐波的远场发散角和光斑二阶矩的变化规律会因为基波像差的不同而不同，但谐波的远场发散角明显地比相应基波的小的结论；得到了在走离效应和衍射效应等影响许多因素可以忽略的情况下，位相畸变传递到二次谐波的估算式；举例分析了KDP三倍频方案中，基波位相畸变对二次谐波和三次谐波的影响；实验工作中，用哈特曼-夏克传感器分别对1064nm倍频过程和790飞秒超短脉冲倍频过程中的基波和谐波的位相分布进行了测量，给出了相应结果。

The design results of this paper are highly meaningful for the development of fiber lasers and fiber amplifiers.

这对光纤激光器和光纤放大器的发展有重要意义。

Opper bromides have been used as catalysis in organic synthesis, batteries, gas sensors and lasers.

uBr已经用于有机合成的催化剂，电池，气体传感器和激光器。

Owing total production area of 88,000m2 with about 300 engineers and 1000 workers, we can manufacture over 180 kinds of redemption machines(ticket machines, gift machines, pushers, cranes, lasers shooting, etc), over 120 kinds of mechanical facilities(kiddie rides, bumper cars, carousels, major rides, etc), and over 100 kinds of simulators(original and second-hand arcade games).

公司现有生产用地88000m2，生产厂房66000m2，专业人才300多名，员工超过1000余人；金龙公司质量管理体系已通过ISO 9001：2000国际标准认证，现有嘉年华彩票机产品180多种，大、中、小型机械类产品120多种，国际市场畅销模拟机100多种。

The measurements clearly pointed the way to optical communication compact gallium-arsenide semiconductor lasers as the source, low-cost cladded glass fibers as the transmission medium, and silicon or germanium semiconductors for detection.

测试结果清楚地指出了光通信的道路--就是以紧凑的砷化镓半导体激光器为光源，廉价的包层光纤为传输媒质，硅或锗半导体为探测器。

We indicate that there are violations of the Cauchy-Schwarz in-equality in the interaction of the atomic Bose-Einstein conder sate with lasers,which meansthe existence of nonclassical correlations between atoms and photons.

对外部量子电磁场的各种量子态，计算了超流的二阶关联函数，分析了超流的压缩特性。表明外部量子电磁场中的热噪声不影响超流的压缩特性，但影响超流的二阶关联函数。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新