laser power

These applications require , at most, only a few watts of laser power.

这些应用所用的激光功率最多为几瓦.

The four-energy-level velocity rate equation is illustrated and so is the expression of threshold power. The laser power on the condition of near-threshhold and powerful pumping is estimated.

由钕离子的四能级跃迁的速率方程理论，推出了阈值功率的表达式，并且对近阈值条件下和强泵浦条件下的激光输出功率做了理论预测；

This is the starting point for the analysis of laser power output that follows.

这是下文用来分析激光输出功率的出发点.

In this paper, I have introduced the basic principle of laser beam-riding guidance system, systematically analyzed the influencing factors of laser transmitted in atmosphere, deduced and counted laser power and laser irradiance of unit area that laser receiver received.

本文介绍了激光驾束制导系统的基本原理，系统的分析了激光在大气传输中的影响因素，并推导计算出激光接收机所接收到的激光功率和单位面积的激光辐照度。

The experiments show that both the copper reflector and the silicon reflector cooled by the thermoelectric refrigerator can compensate the distortion caused by laser power, so that the reflector surface is unchanged when it works.

实验表明，半导体致冷铜镜和硅镜可以很好地补偿激光热变形，使反射镜在承受激光功率的时候，其镜面面型保持不变。

In this paper the voltage features are analyzed of the Laser Power Sources Mains Control System and its exterior device. It is suggested to isolate the both and a typical application circuit is designed.

分析了激光电源控制系统与控制外设的电平特点，介绍了控制系统与控制外设隔离方法，设计了典型应用电路；

When laser power is lower, laser welding is belong to thermal conduction welding model; with the increasing of laser power, the surface happen to appear evaporation, then it transforms from thermal conduction welding model into deep penetration welding model.

当功率较低时，激光焊接属于热传导焊接模式；随着激光功率的提高，当工件表面刚好出现汽化时，则处于热传导焊接向深熔焊接过渡的临界状态。

A new method for measuring He-Ne laser power by using illuminometer is introduced in this paper.

介绍利用照度计测量氦氖激光器功率的新方法。

When the incident laser power ( p) exceeds the critical power ( p c), self-focusing appears during the propagation of laser.

在入射激光功率（p）超过临界功率（pc）时，激光在传播过程中产生自聚焦；

Putting the reactants in uniform electric field, we reduced the laser power density threshold needed by said reaction by a factor of two.

把反应物置于均匀外电场中，可以使引发化学反应时所需的激光功率密度阀值降低一倍。

The Influence of Thyratron Reservoir Voltage on CuBr Laser Power

闸流管氢发生器电压对CuBr激光功率的影响

Regulating circuit of high precision for laser power is designed to increase the smoothness of laser cutting and engraving and to support the laser engraving of 256 gray-scale image.

为了提高图形切雕加工的光洁度和支持256级灰度图像雕刻加工，设计了高精度的激光功率调节电路。

A laser power supply with newly designed thyristor 3-phase rectifier At latter, methods of confirm part parameter in the converter is introduced, most parts of 3-phase rectifier and filter, inverter and filter, NFT are confirmed.

可控硅调压激光器电源的新型同步触发电路对功率变换部分的整流滤波、逆变、滤波及中点形成等环节进行了详细地分析与设计，给出了系统参数计算和选择的方法。

The LD module consists of a DC-PBH laser diode, a pin photodiode for monitoring the laser power, a thermoelectric cooler, and a thermis-ter.

组件包括LD芯片，LD背光监测pin光电二极管，半导体制冷器和一个热敏电阻。

Relation of electron density and temperature of copper plasma to laser power

铜等离子体电子温度和密度随激光功率的变化

A quarter area on each dentinal slices was irradiated under the laser with different laser power and with different time of irradiation ( 180s, 240s, 300s).

选用不同功率的激光照射牙本质片，每种功率激光分别照射180s、240s和300s。

By combining thyristor switch with large power transistor, large current rectangular pulsed laser power supply with stable smooth top is obtained, pulsed current of 80A and top current fluctuation within 2% are achieved.

采用可控硅开关元件和大功率三极管放大元件相结合的方案，得到稳定大电流脉冲方波激光电源，脉冲电流可达80A，平顶电流波动小于2%。

The Affection of Laser Power Density Distribution to surface Temperature Rising

激光功率密度分布对表面温升的影响

Design on Laser Power and Temperature Feedback Compensation System Based on ARM

基于ARM系统激光器的温度和功率反馈补偿系统的设计

Based on the three-dimensions transient temperature distribution model, the paper analyzes the effects of different combination of laser power and scanning velocity on the hardened case's uniformity.

以三维瞬态温度场分布模型为基础，对激光相变硬化中不同激光功率和扫描速度组合对硬化层分布均匀性的影响进行了理论研究。

Study and design of the laser power sources in CNC system

激光数控电源的研制

Application of SCN to the Laser Power Supply

开关电容网络在激光电源中的应用

Chapter 5 introduces measurement devices of the laser power sensor and the micromechanism vision check instrument.

第五章介绍了微流控芯片加工的检测仪器与设备，功率测量仪和微机械旋转体视显微检测系统。

Laser Power Stabilizator in Liquid Crystal

液晶激光稳功率器

VMOSFET have mary advantages over bipolar transistors, they are very effective, especially in power electronics applications, A compact laser power supply with good performances has been developed by using devices of VMOS, opto-isolator etc.

VMOS场效应晶体管有许多超过双极晶体管的优点，特别适合于功率电子学应用。我们使用VMOS管、光隔离器等器件研制的小型激光器电源，性能良好。

Laser power index in multiphoton processes is discussed in detail for the simple three-level system.

本文详细地讨论了三 能级 系统多光子过程的光强指数.

The results show that increasing scan rate and decreasing laser power can minish balling effect to a certain extent.

研究表明，适当提高扫描速度或减小激光功率可以在一定程度上减小316不锈钢粉末选择性激光烧结的球化效应。

Some interaction between the laser power and welding speed are obtained by repeated two-factor experiments.

通过有重复的二因子试验,得出激光能量和焊接速度之间存在着一定的交互作用.

Meanwhile experimental system was set up and the experiments of laser cutting soda-lime glass in straight lines were carried out. The impacts of laser power, laser scanning velocity and laser spot size on cutting quality were analyzed, respectively.

搭建了试验系统并进行了钠钙玻璃的YAG激光直线切割试验，分析了激光功率、激光光斑大小和激光扫描速度对切割质量的影响，并总结出了YAG激光直线切割钠钙玻璃的最佳参数。

Avalanche ionization is a dominant damage mechanism of optical films if laser power density reaches to TW/ cm~ 2 level.

激光功率密度达到太瓦级时，光学激光薄膜破坏中雪崩机制占主导地位。