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激光器
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  laser
    On the investigations of Middle-Energy Nd~(3+):Glass Laser and its Application to Laser Welding
    中能量钕玻璃激光器及激光焊接的研究
短句来源
    On the investigations of Middle-Energy Nd~(3+): Glass Laser and its Application to Laser Welding
    中能量钕玻璃激光器及激光焊接的研究
短句来源
    Research on a Tunable Double-Discharge TEA CO_2 Laser
    选频双放电TEA CO_2激光器
短句来源
    The Effect of the Boudary Condition of the Discharge Capillary of the CO_2 Laser on the Gain.
    CO_2气体激光器放电毛细管的边界条件对增益的影响
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    Monolithic Integrated Optoelectronic Circuits Including Strip Buried-Heterostructure AlGaAs Laser and MES-FET Driver
    深埋条形双异质结AlGaAs半导体激光器与MES场效应管驱动器单片集成光电子电路
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    140Mb/s Hybrid Integrated LD Driver Module
    140Mb/s混合集成激光器驱动模块
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    The pump threshold pulse power of SR and ASR are 18. OW and 25. 4W.
    用脉宽为10ns的可调谐掺铒光纤激光器作为背向泵浦源,得到背向斯托克斯拉曼(SR)和反斯托克斯拉曼(ASR)的脉冲放大阈值泵浦功率分别为18.0W和25.4W。
    Fiber-Laser Based Wavelength Division Multiplexed Fiber Bragg Grating Sensor System
    基于光纤激光器的波分复用光纤光栅传感系统
短句来源
    Theoretical analysis of fiber-laser based all-optics fiber Bragg grating sensor system
    基于光纤激光器的全光光纤光栅传感理论分析
短句来源
    140Mb/s hybrid integrated single-mode (SM)LD transmitter was developed.
    研制了一种混合集成140Mb/s单模半导体激光器发射机。
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  laser
Two compounds were designed, synthesized, and characterized by 1H-nuclear magnetic resonance (1H-NMR), ultraviolet (UV)-visible, and matrix-assisted laser desorption/ionization (MALDI) mass spectra.
      
Restriction Enzyme Pattern Analysis of Mycobacteria DNA by Capillary Electrophoresis with Laser-Induced Fluorescence Detection
      
A new method for rapidly detecting restriction enzyme patterns of Mycobacterium DNA using capillary electrophoresis with laser-induced fluorescence detection (CE-LIFD) was developed.
      
The polymers were characterized by IR spectra, thermal-weight analysis, scanning electron microscope and laser particle size analysis.
      
Photoinduced intramolecular electron transfer process from C60 moiety to carbazole moiety has been studied by nanosecond laser flash photolysis.
      
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A probetype of a laser knife Model LS—Ⅱ was mannfactured on the basis of Model LS—Ⅰwith a vertical Co_2 laser. Now this type of laser Knife is appliedin practice for operation in hospital. There are many advantages: CO_2 laser in this laser knife was set up vertically,it is more convenient in practice. Being macde of glass GG—17,it is low in cost and can be easily found for a wide range of applications.Only four mirrors were applied in the optical system of the laser knife.So the lose of light energy was decreased....

A probetype of a laser knife Model LS—Ⅱ was mannfactured on the basis of Model LS—Ⅰwith a vertical Co_2 laser. Now this type of laser Knife is appliedin practice for operation in hospital. There are many advantages: CO_2 laser in this laser knife was set up vertically,it is more convenient in practice. Being macde of glass GG—17,it is low in cost and can be easily found for a wide range of applications.Only four mirrors were applied in the optical system of the laser knife.So the lose of light energy was decreased. The head of laser knife has a biger workable range. In this article the construction of this instrument and the method of its manufacturing are discussed.

在 LS—Ⅰ型激光手术器的基础上,激光协作小组研制了 LS—Ⅱ重型激光手术器,这种手术器现在在医院中应用,有很多优点:CO_2激光器立式安装,使用方便。CO_2激光器采用 GG—17玻璃制造,价格便宜,便于推广使用。激光手术器的光学系统只安置了4个反射镜,激光的光能损失较小。手术头工作范围较大。本文讨论了此仪器的结构和它的制造方法。

Designing carefully the electric control system and selecting the param- eters of Nd~(3+):glass rod,we have developed a set of Nd~(3+):glass Laser welder which has already been applied to industry.The laser welder operating on 50J output power and 2.5ms pulse width can continue to work for more than eight hours with thirty pulses per minute.In addition to welding some special materials,it welded twenty thousand bearings.This paper decribes the features and performances of the Nd~(3+):glass laser and its electric...

Designing carefully the electric control system and selecting the param- eters of Nd~(3+):glass rod,we have developed a set of Nd~(3+):glass Laser welder which has already been applied to industry.The laser welder operating on 50J output power and 2.5ms pulse width can continue to work for more than eight hours with thirty pulses per minute.In addition to welding some special materials,it welded twenty thousand bearings.This paper decribes the features and performances of the Nd~(3+):glass laser and its electric control system,and also states their application to welding.

由于我们对激光电气控制系统和钕玻璃棒的参数等作了较为周密的考虑和设计,已研制成一套能长时间稳定输出中等能量的钕玻璃激光焊接系统,并成功地用于工业生产。该系统在输出能量为50焦耳、脉冲宽度为2.5毫秒的情况下,能以每分钟30次的重复频率连续工作8小时以上。除焊接了有关单位使用的特种材料外,已焊接了二万套“204”轴承。经检验,质最合格,已由用户使用。本文着重描述了该钕玻璃激光器和激光电气控制系统的设计特点、性能以及用于焊接的概况。

The extinction coefficients of nine samples,such as C_2H_4,H_2O,C_2H_2CN and so on,were measured using a multipass White-cell and a tunable CO_2 Laser.An expermiental system was designed for in-situ measurement of ethylene.The system consists of two tunable Lasers,a cooperative petro-refleetor and a 15 em diameter primary mitten.This system can monitor average concentration of 0.03 ppm over path length of 2×450m.

本文论述了以室内用White型多程试样池测试乙烯、水汽、丙烯腈等九种污染气体分子的吸收系数为依据,自行设计了以角反射器为配合目标的激光长路程监测大气污染系统的研究。该系统的特点是使用二个小功率光栅调谐CO_2激光器、常温探测器和小口径光学系统,光程为900米时监测乙烯的灵敏度优于30ppb。

 
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