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激光光源     
相关语句
  laser source
     Tunable laser source at wavelength down to 218.3nm
     短至218.3nm的可调谐激光光源
短句来源
     LD-PUMPED Nd∶YAG CW 946nm LASER SOURCE FOR PERIODICALLY POLED LiNbO_3
     用于准相位匹配的LD泵浦Nd∶YAG 946nm连续激光光源
短句来源
     The designing parameters are, as a transmitting system, the objective field of view 2ω=10°,the aperture of the exit pupil Φ=100mm,the reducing times of the angle of the diverging beam β=5x,the wavelength of the laser source λ=10.6μm.
     设计参数为 :作为发射系统 ,物方视场角 2ω =10° ,出瞳口径Φ =10 0mm ,束散角压缩比 β =5x ,激光光源波长λ =10 .6 μm。
短句来源
     SoC-based high-stability laser source driver
     基于SoC的高稳定度激光光源驱动器
短句来源
     With the rapid progress of optical sensors and optical communications,the laser source with low phase noise and intensity noise is in urgent demand.
     光传感和光通信领域的迅速发展迫切需要相位噪声和强度噪声都很低的激光光源,为满足这一需求,设计出一种新型低噪声光纤激光器。
短句来源
更多       
  laser light source
     In this paper the solid state laser trigger based on AT89C51 MCU is developed used for single or double pulse laser light source,which is used in laser transient speckle-shearing measurement.
     针对激光瞬态散斑测量中所应用到的单脉冲、双脉冲激光光源,研制了基于AT89C51单片机的激光瞬态测量用光源的脉冲发生器。
短句来源
     also based on the experimental result of the signal detected, we analyze the error of the system and the relationship of the effective detection distance with the power of the laser light source.
     并且通过对检测信号的实验数据结果,进行了系统整体误差分析以及有效探测距离和激光光源光功率之间关系的分析。
短句来源
     This attenuator helps to eliminate experimental errors caused by 623.8 nm multimode He-Ne laser's non-complete natural light and changing random of polarization plane with time,and thus provides relatively stable laser light source for polarized light information testing system.
     该衰减器解决了632.8 nm多膜氦氖激光器出射光为非完全自然光且偏振面随时间做随机变化导致实验误差的问题,为偏光信息测试系统提供了相对稳定的激光光源.
短句来源
     THE INTERFEROGRAM ANALYSIS OF MICHELSON'S INTERFEROMETER WITH LASER LIGHT SOURCE
     激光光源迈克耳逊干涉仪的图样分析
短句来源
     An on-line type automatic photoelectric counter is developed based on this photoelectric detection method. The laser light source is narrowed and collimated, thus solving the difficulty in counting for small workpiece.
     基于这种光电检测方法研制了一台在线式光电自动计数仪,并对激光光源进行缩束准直,解决了小工件计数的难点。
短句来源
更多       
  laser sources
     Monitoring instrument for methane concentration by light absorption method using dual laser sources
     双激光光源光吸收法甲烷浓度光纤监测仪
短句来源
     The development of tunable laser sources in optical communications
     用于光通信的可调谐激光光源
短句来源
     It is more importance that tunable laser sources apply in DWDM,with high speed and great capacity optical communications system rapid progress.
     随着高速大容量光通信系统的迅猛发展 ,可调谐激光光源在 DWDM中的应用将越来越重要。
短句来源
     Increasing spectrum linewidths of laser sources and reducing bandwidths of signals can enhance CNR effectively.
     增加激光光源谱宽和减少信号带宽可以有效地提高载噪比 .
短句来源
     The testing results indicate that, in a temperature range of -20℃ to 50℃, the technology can yield a variation of light power less than 0.3%, a variation of mean wavelength as low as 3×10~(-6)/K. The digital control method can availably improve the precision and practicability of IFOG. It can also apply to other laser sources that need precise control.
     测试结果表明,在-20~50℃温度范围内,光功率波动小于0.3%,平均波长的温度漂移为3×10-6/K,此数控方法在光纤陀螺高精度、工程化研究中有良好的应用前景,对其他半导体激光光源的高精度控制具有通用性。
短句来源
更多       
  laser lamp-house
     The improvement of the determined equipment was including: (1) adoption of the 635nm laser lamp-house whose homochromatism is good;
     其中对检测装置的改进主要包括:(1)采用单色性良好的635nm的激光光源;
短句来源
     Accordingly, the study on the characteristic of penetration of laser beam through the atmosphere is significant basis in choosing laser lamp-house and the receiver of light signals (i.e
     因此,研究激光大气传输特性是我们选定激光光源和光信号接收器(即CCD器件)的重要依据。
短句来源
     Laser lamp- house (semiconductor laser producer) has many advantages, such as steady output light intensity, cheap price and long life (about 10000 hours).
     该方法采用的磁质旋光效应介质(三氯化铁)安全无毒,采用的激光光源(半导体激光器)输出光强稳定,价格低廉,使用寿命长(约10000小时)。
短句来源

 

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  laser source
A suppression effect is predicted for the reflection of radiation from a laser source.
      
This method does not require precise polarization matching between the laser source and fiber and considerably loosens requirements for the polarizer-analyzer extinction and resolution of the photodetector.
      
The scheme of a single-laser source capable of switching from free lasing to modulated Q mode synchronously with the target fracture is described.
      
The analytical results show that, for certain modulation frequencies, the total transmission can be increased if the laser source is placed between the mirrors.
      
It is demonstrated that a gain medium in the cavity of the Michelson interferometer that serves as a detector of gravitational waves allows a sharp decrease in the output power of the external laser source.
      
更多          
  laser light source
Fluorescence analysis of cells using a laser light source
      
Some contributions of ruby laser light source to the study of the plasma refractivity
      
A spectrochemical method has been worked out using a LASER light source in place of the customary spark light source.
      
An extreme ultraviolet (EUV) laser light source based on high-harmonic generation is presented.
      
Several properties of a compact laser light source built up by a distributed feedback dye laser (DFDL) and an amplifier realized with only one dye solution cuvette are discussed.
      
更多          
  laser sources
Doubly phase-matched cascaded parametric interactions of ultrashort light pulses give rise to a manifold of new spectral components, expanding substantially the capabilities of the available laser sources of ultrashort pulses.
      
Three laser sources with radiation wavelengths of 408, 532, and 635 nm which fall in the absorption bands of Porphyrins and Chlorines are used for the tissue fluorescence excitation.
      
Frequency up-conversion is observed down to a peak power on the retina of only 150 W/cm2, while, for other laser sources, this threshold is as low as 1 W/cm2.
      
Modern WDM telecommunication systems require stable and calibrated laser sources.
      
The peculiarities of this phenomenon with respect to the analogous behaviour displayed by conventional laser sources are pointed out.
      
更多          
  其他


Porous metal coating sintered at high temperature with 100~360 mesh bronze powder has been studied experimentally. This coating exhibits as a nearly perfect difEuser for the 10.6m wavelength of CO2 laser; its melting point is up to 1000, the highest of the known sphere coatings; it has stable physical and chemical properties; good mechanical and heat transfer characteristics; and can be used in a low pressure system.

实验研究了采用100~-360目的青铜粉以烧结法制备的多孔金属涂层.对10.6微米的CO_2激光光源实现了近似理想的漫反射,涂层材料的熔点可达1000℃以上,是目前同类积分球涂层中熔点最高的;涂层的机械和物理化学性质稳定;散热性能好,满足了高功率CO_2激光光源高温测量的要求.

making diffraction grating on photoresist agent by holographic method consists of laser source, interference system end photosensitive recording media.under our realizable conditions, we Can obtain a grating with an areaof about 80× 40mm2,λ/6 wavefront aberration, 30% diffoaction efficiency,75% of the theorectical limit of resoloing power and no ghost line.

用全息法在光致抗蚀剂涂层上制作光栅,涉及到所用的激光光源、干涉仪系统和光敏记录介质。在现有条件下,对一个刻划面积约80×40mm~2的光栅,可以得到波前象差1/6λ,30%的衍射效率,分辨率为理论值的75%和无鬼线强度。

With the high speed colliding's proceses, the intense flash phenomena will occur. It is not easy to obtain the clear image with the conventional highspeed photographic method. The powerful luminescent brightness and good monochromatism of laser are used for the sequential pulsed laser light source in high speed schlieren photographic system. The interference filter, added in front of camera lens, can be used for removing the flash disturbance. A seriers of the shadow and schlieren pictures can be recorded.Our...

With the high speed colliding's proceses, the intense flash phenomena will occur. It is not easy to obtain the clear image with the conventional highspeed photographic method. The powerful luminescent brightness and good monochromatism of laser are used for the sequential pulsed laser light source in high speed schlieren photographic system. The interference filter, added in front of camera lens, can be used for removing the flash disturbance. A seriers of the shadow and schlieren pictures can be recorded.Our Department have designed and trial-manufactured the Q-switched ruby laser with sequential pulses of Model XMJ-2 and the access type rotating mirror scanning high-speed camera of Model MJGS-10. They and a schlieren apperatus of Model 640 are made Pulse Laser High-speed Schlieren Photographic System. The better results have been obtained. This paper has been reported on 14th International Congress on High Speed Photography and Photonics. The quality of The Laser Light Source and The Photographic System have been appraised by Chinese Authorities. They recognized it advanced in China.This paper give all the details about principle, applications and conclusions.

高速碰撞过程将伴随发生强烈闪光,常规的高速摄影方法不易获得清晰的图象。利用激光光源的高亮度和单色性作为序列脉冲光源进行高速纹影摄影,在摄影物镜前加入干涉滤光片,可排除杂光干扰,得到一系列可用的阴影和纹影图象。我系设计和制造了XMJ—2型序列脉冲Q开关红室石激光器和MJGS—10型等待型转镜扫描高速摄影机,它们与国产640型纹影仪配套,组成脉冲激光高速纹影摄影系统,成功地记录了高速碰撞及穿甲过程,有关论文已在第14届国际高速摄影及光子学会议上宣读,光源及整机已通过鉴定,为国内先进水平。本文阐述有关的原理,设计和应用结果以及相应的结论。

 
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