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光器件     
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  optical devices
    Recent Progress on Key Optical Devices in OFC 2004
    从OFC 2004看全光网中关键光器件的新发展
短句来源
    This thesis, based on the design methods of optical devices and requirements of communication system, mainly analyses the inter-device coupling process , and has designed some optical devices in theory, some of which are substantiated in experiment.
    本文结合光器件的设计方法和系统对光器件的要求,分析了光通信器件中器件与器件之间的光束耦合过程,以及光束在不同传输介质中的传输特点,从理论与实验两方面作了一些工作,主要概括为以下几方面:
短句来源
    This paper introduces the latest technical trends of optical fiber, optical devices and network components used in the fiber transmission networks for dense wavelength division multiplexing in the world, and analyzes its development and the influence on the markets of optical fiber and cable in China.
    本文介绍了当前国际上密集波分复用 ( DWDM)光纤传输网络所用的光纤、光器件和网络构成的最新技术动态 ,分析了发展趋势以及对我国光纤光缆市场的影响
短句来源
    Exploitation of Select Cut-Off Specialty Single Mode Fibers for Optical Devices
    光器件用选择截止特种单模光纤的开发
短句来源
    Two types of optical devices, planar lightwave circuits (PLCs) and liquid crystal (LC) devices used in optical communications, are considered in this thesis. Novel structures, new calculation methods and new design methods are proposed in developing these two type devices.
    本论文研究了应用于光通信的平面波导光器件与液晶光器件,提出了一些新型的器件结构、器件模拟计算以及设计优化的新方法,解决了平面波导光器件与液晶光器件研制中的若干问题。
短句来源
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  optical device
    Study on Key Optical Device Technologies in Optical Internet
    光因特网中的关键光器件技术研究
短句来源
    So optical switch based on MOEMS technology will be a key optical device in the next generation optical communication system.
    因此基于MOEMS技术的光开关将成为下一代全光通信网络的关键光器件
短句来源
    Considering the current development of optical device technologies and the network interconnection schemes, this thesis presents a novel national transport network architecture which combines the Optical Time Division Multiplexing (OTDM) and Optical Wavelength Division Multiplexing (OWDM) technologies.
    考虑到当前光器件发展的水平和网络互联的机制,本论文提出了一种简单的优化整合使用光时分复用技术和光波分复用技术而构建的广域骨干网络的体系结构。
短句来源
    Some problems and challenges confronted by optical metropolitan area networks are analyzed in this paper. Based on the analysis, key networking and new optical device technologies for optical metropolitan area networks are discussed, and the development trends of optical metropolitan area network are forecasted.
    文章分析了现行光城域网所面临的问题和挑战,在此基础上,重点探讨了新一代光城域网中的关键联网技术和新型光器件技术,同时预测了光城域网未来的发展趋势。
短句来源
    Key optical device technologies in optical internet are discussed and studied in this paper.
    对光因特网中的关键光器件技术进行了探讨与研究。
短句来源
  optical components
    JME for Measuring Polarisation Mode Dispersion in Optical Components
    JME法测量光器件偏振模色散
短句来源
    Optical burst switching (OBS), which combines the merits of wavelength routing and optical packet switching while avoiding their defects, can provide IP based resource assignment and switching at high speed with low demand for optical components in the all-optical networks.
    光突发交换结合了光路交换(如波长路由)和光分组交换两种交换技术的优点,能在较低的光器件要求下实现面向IP的快速资源分配和交换,是一种易于实现、又能高效利用网络资源的光交换技术,被认为是下一代全光互联网中有竞争力的交换模式。
短句来源
    Solution for Intelligent Manufacturing Test of Optical Components
    光器件智能化生产测试解决方案
短句来源
    Review on the Key Optical Components in Optical Transmission Network
    光传送网中的关键光器件
短句来源
    In the first chapter of this paper, the basic structure, characteristics, and the development as well as some key optical components of optical networks are introduced, and the main issues of reliability and survivability of the optical networks are reviewed.
    本文第一章介绍了光网络的基本拓扑结构、特点、发展情况以及它的一些关键光器件,评价了光网络可靠性和生存性发展的现状与发展。
短句来源
更多       
  optical component
    One of the important fac tors that affect the cost structure of optical com po nents is the test cost,which can be40%of the total cost of optical component.
    影响光器件成本结构的一个重要因素是测试成本,它最多可以占到光器件成本的40%。
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  optical devices
For various geometrical configurations, these networks can function as some optical devices, such as beam splitters, switches and interferometers.
      
Operation principles, design, characteristics, and the state-of-the-art of magnetoresistive, microelectronic electrical, and quantum-optical devices are described.
      
These materials can be used in optical devices operating in the long-wavelength spectral range and as membranes for chemical sensors.
      
The results of the investigation can be used for the development of new efficient nonlinear optical devices upconverting the laser radiation frequency.
      
Multiple holographic images can be written locally and these erasable sub-wavelength structures are used to produce a variety of optical devices.
      
更多          
  optical device
An Optical Device for Determining the Local Characteristics of Crystals by Means of Counterpropagating Laser Beams
      
An optical device designed for nondestructive quality control and measurements of local characteristics in bulks of crystals and other optical elements with a spatial resolution of the order of 0.1 mm is described.
      
The changes in the dynamic range of an acousto-optical device are calculated for different diffraction efficiencies.
      
The effective molecular second-order hyperpolarizability γeff of the BuCo molecule was estimated to be as large as 5.60 × 10-31 esu, suggesting BuCo is a potential material for optical device applications.
      
In optical Integrated circuits (OIC) and optical device design (passive and active), the index of refraction profile is a coordinate dependent parameter.
      
更多          
  optical components
Fresnel reflection in optical components and detectors for the terahertz frequency band
      
This interference causes the characteristics of optical components and detectors to be dependent on the wavelength.
      
In dwarfs with rotational velocities of about 100 km/s, such as the optical components of low-mass X-ray novae with black holes, hot plasma can be confined in coronal loops even in the presence of fairly weak magnetic fields.
      
We present the results of calculations of theoretical absorption-line profiles and radial-velocity curves for optical components in X-ray binary systems.
      
This can explain the magnitude of the observed luminosity excess and the position of the optical components of X-ray binaries in the luminosity-radius plane.
      
更多          
  optical component
Thus, the soft X-ray emission of such systems in their quiescent state (to 1031 erg/s) could be associated with the coronal emission of the optical component/dwarf.
      
This suggests that the quiescent X-ray emission of these two systems is provided by emission from the corona of the subgiant optical component.
      
Numerical simulations of the evolution of GRS 1915+105 at the X-ray stage indicate that the most probable initial mass of the optical component (donor star) is (1.5-)M⊙.
      
If the initial mass of the optical component was (2.5-)M⊙, the system underwent a common-envelope phase; in this case, the initial mass of the black hole progenitor did not exceed ~50M⊙.
      
We derived the dependence of the mass of the X-ray emitting component mx on the mass of the optical component mv via an analysis of the radial-velocity curve based on profiles of the CaI 6439.075 ? absorption line synthesized in a Roche model.
      
更多          
  其他


This paper describes the design and the fabrication of large number of spots high stability and high switching speed frequency synthesizer for acousto optic deflection.

本文论述声光器件作为激光扫描或寻址时所用的多点数、高稳定度和高切换速度的频率合成器的设计和制作。

Abstract- This paper presents a new method which can directly measure the average flow rate. The operation mechanism relies upon counting synchronously both the equi-amplitude driving signals in the acoustoc-ptic device of the system and harmonic components of the doppler sig-nals. Thus in the new system the filter used in ordinary doppler systemic not needed.

本文介绍的是一种利用光路中声光器件的等幅驱动信号与多普勒信号中的交流分量同步计数法,直接测出流体的平均速度,而不必设置通常采用的多档滤波器。

A new optical system for real-time pattern recognition is presented, which mainly consists of a laser diode, an acoustooptic device with multi-transducer, a charge-coupled device and optical lenses. Neither the coherent optical input image nor the Fourier transform hologram of the reference image is required by this system. Real-time video signals from imaging system operating in different spectrum and the reference images either pre-recorded or acquired in real-time can be applied to the present system. Theoretical...

A new optical system for real-time pattern recognition is presented, which mainly consists of a laser diode, an acoustooptic device with multi-transducer, a charge-coupled device and optical lenses. Neither the coherent optical input image nor the Fourier transform hologram of the reference image is required by this system. Real-time video signals from imaging system operating in different spectrum and the reference images either pre-recorded or acquired in real-time can be applied to the present system. Theoretical analysis is given to describe the system operation. Experimental results have confirmed that this incoherent optical correlator system possesses the capability of performing real-time pattern recognition. In fact, the image shift, scale, rotation invariance problems encountered in some pattern recognition tasks can easily be solved in this system.

本文描述了一个新的实时光学图像识别系统。该系统主要是激光二极管、多换能器声光器件、电荷耦合器件以及光学透镜组成的。这个系统既不需要相干光输入图像,也不需要基准图像的付氏变换金息图。不同波段成像系统输出的实时视频图像信号和事先记录的或实时截获的基准图像均可施加给本系统。文中给出了理论分析以说明工作原理。实验结果证实这种非相干光相关器具有完成实时图像识别的能力。事实上,某些图像识别任务碰到的图像位移、尺寸、旋转不变性问题,本系统可容易地予以解决。

 
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