• The problem how to select optimum of signal-to-noise ratio and laser beam divergence for laser range-finder is studied.

    研讨激光测距激光发散如何选取最佳值问题

    www.dictall.com

  • The primary function of the optical transmit antenna is to collimate far-field divergence of the laser beam and reduce the size of the laser beam in .

    由于大气衰减影响,非视线散射大气光通信需要使用光学天线提高对光信号采集能力,进而增加通信距离。

    www.dictall.com

  • In this article we discuss the relation between the laser beam divergence and the amplification factor in unstable cavities and the principles for the design of unstable resonators are given.

    本文研究激光束发散度腔的放大倍数关系,并提出了设计原则

    dict.cnki.net

  • But the main restriction in the development and application of semiconductor laser is that the laser beam shape is extremely asymmetrical, and its divergence angle is very big.

    制约半导体激光器发展应用一个主要瓶颈,就是光束形状极不对称发散很大

    dict.cnki.net

  • To measure such a tiny angle, an inverse collimation telescope is used to magnify the divergence angle of a Gauss laser beam before measurement.

    同时,分析倒置激光望远镜的定位误差发散放大率影响,得出了倒置激光望远镜测量微小高斯光束发散的可行性结论。

    www.dictall.com

  • Beam control is one of the key techniques of laser communications, among which the divergence collimation and measurement are requirement for farther laser beam shaping.

    激光束控制空间光通信关键技术之一其中光束发散小角度的测量进一步完善直系统提供了必要条件

    dict.cnki.net

  • Theory analysis and computer simulation show that the precision and focus of star tracker, the divergence angle of down beam influence the probability of laser link setting up.

    理论分析计算机仿真表明敏感器测量精度焦距下行信号影响激光链路成功建立概率

    dict.cnki.net

  • The operating distance of a laser radar system is determined on pulse energy, pulse width, beam divergence angular, atmosphere attenuation, target reflection, receiver sensitivity and so on.

    激光雷达系统作用距离下列因素决定脉冲能量脉冲宽度光束发散大气衰减目标反射率接收机灵敏度

    www.fabiao.net

  • This paper demonstrated the basic parameters and characteristics of laser beam, and introduced the basic principles and the devices used in the CCD laser divergence angle measurement method.

    简述激光光束基本参数特性介绍采用CCD进行激光发散测量基本原理装置

    www.opticsjournal.net

  • Finally by analyzing these data we can obtain the parameters about the laser beam such as :beam size , relative beam power , relative peak power, divergence angle, M2 factor and so on.

    通过分析这些数据可以获得有关光束一些参数光斑尺寸相对功率相对峰值功率发散M2因子等等

    www.boshuo.net

  • In conditions that the laser gains can be obtained, the relations between the maximal allowable divergence angle of incident electron beam and other physical parameters are discussed.

    获得激光增益条件下讨论入射电子束最大许可发散其它物理参数之间关系

    www.dictall.com

  • According to acquisition and tracking strategy and laser detection theory, an expression of the best angle of beam divergence under direct detection is provided.

    根据捕获跟踪策略激光检测理论给出了直接探测情况下最佳光束发散表示式

    www.dictall.com

  • According to acquisition and tracking strategy and laser detection theory, an expression of the best angle of beam divergence under direct detection is provided.

    根据捕获跟踪策略激光检测理论给出了直接探测情况下最佳光束发散表示式

    www.dictall.com

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