查询词典 optical fiber

In this thesis, the oxygen sensitive materials and glucose sensitive materials had been developed by thermo-polymerization method including carrier covalence method and carrier covalence-cross linking method, and the properties had been investigated using the detection experiment of oxygen and spectrophotometer, at the mean time, the applications of oxygen sensitive materials in fiber optical gaseous oxygen sensor and fiber optical dissolved oxygen sensor, and that of biology sensitive materials in fiber optical dextrose sensor had been studied in this paper.

本论文采用热聚法(包括载体共价法和载体共价-交联法)制备氧敏感材料以及在此基础上制备了对葡萄糖敏感的敏感材料，利用氧测试实验或分光光度计对氧敏感材料进行性能评价，研究氧敏感材料在光纤气态氧传感器和光纤溶解氧传感器中的应用以及氧敏感材料在光纤葡萄糖传感器中的应用。

The assembly method of the invention has the main principles that a semiconductor laser, an optical coupled apparatus and a fiber head are orderly arranged, and the optical axes of the semiconductor laser, the optical coupled apparatus and the fiber head are arranged in a same straight line; the focal plane of an output beam which is focused on the fiber head is changed through utilizing and adjusting an adjusting device which can cause a beam to deviate; the sensitivity of the assembly adjustment of the adjusting device in the course of fixing is reduced.

本发明的方法的主要原理是将半导体激光器、光学耦合器件、光纤头依次排列，并使它们光轴在同一直线上，然后通过利用一使光束发生偏移的调节器件，通过调节该调节改变聚焦于光纤头的输出光束的焦平面，降低调节器件装配调节的固定时的敏感性。

The analysis of the optical signal transmission characteristics and the physical parameters provides the theoretical foundation for optimizing the design and improving the performance of AWG; and the optimizing design numerical value calculation method solves the complex problem of the optimizing design of the AWG, it can also provide a way for AWG computer aided design system; the AWG optical signal processing analysis provide a way for optical signal Fourier transform, serial and parallel transmission, circle shift, matrix transform and differential processing; the optical signal processing characteristics of AWG develop AWG to use for new field, and the optical signal processing will play an important role on all-optical networks in the future; by the definition of the wavelength transform matrix of the AWG, the signal output positions that come from these input signals of the different wavelength or the same wavelength but the different input ports and carrying different signals can be accurately determined, and the wavelength transmission matrix plays an important role for analyzing the routing of the complex optical network, or designing the network nodes such as the optical path add/drop multiplexer and optical cross connect device; the wavelength transmission matrix also provides a method for monitoring and managing the wavelength transmission of the optical network nodes; e analysis of the AWG' OXC node structure and wavelength routing provides a way for realizing the OXC, especially for multi-path/multi-wavelength OXC and the intelligence node of the optical networks; by the studying of the control plain characteristics, router, traffic engineering, program and the improved arithmetic of the wavelength routing, the method for realizing the GMPLS' OXC optical transport network is provided, and it play an important role for the study of the automatic switched optical network; the time-frequency analysis can provide more information about the dispersion and energy changes of .the pulsed light transmission in the singlemode fiber, it also provides more useful parameters for analyzing the dispersive accumulating and dispersive compensating.

AWG光信号传输特性与相关参数的分析，为进一步优化设计AWG及提高其性能提供了理论依据，而优化设计计算数值方法解决了AWG优化设计计算的复杂问题，为进一步建立AWG的计算机设计系统提供了基础；AWG光信号处理的特性分析，提出了AWG应用的新领域，为光信号的傅立叶变换、串并传输、循环移位、矩阵变换、微分处理等提供了一条途径；波长传输矩阵变换关系的建立，不仅得到了确定多路AWG每路信号从输入端口到输出端口的准确输出位置的方法，而且在分析应用AWG实现复杂的光通信网络路由的连接、特别在设计分插复用器和交叉连接器等网络节点时有重要的作用，能有效而准确地确定波长的路由关系，为实现节点波长传输路由的监控和管理提供有效手段；基于AWG的OXC结构和波长路由的确定为实现OXC技术、特别是多路多波长的OXC和光网络的智能节点技术提供了有效的方法；控制平面的特征、路由器、流量工程、程序及改进的波长路由算法的研究实现了基于GMPLS的OXC光传送网络的控制平面，为建立自动交换光网路提供了一定的基础；时频分析可以更直观和更清晰地描述脉冲信号在单模光纤中传输色散和能量的变化，为色散积累和色散补偿提供有效的分析参数。

This paper analyzes the optical characteristics of fiber grating according to the theory of mode-coupling in nonsymmetrical optical wave-guide, which affords the gist for the testing of optical characteristics and tuning characteristics of fiber grating. Moreover, we deduce the linear relationship between reflected wavelength shift of fiber grating and vertical displacement of cantilever beam which the fiber grating is sticked on.

论文根据非均匀光波导中的模式耦合理论，分析讨论了光纤光栅的光学特征，为光纤光栅的光学特性和调谐特性的测试提供理论依据；并根据材料力学原理推导了光纤光栅波长漂移量与侧向位移的线性调谐关系。

In this approach, the optical Mach-Zehnder intensity modulator is biased to suppress the odd-order optical sidebands, the fiber laser operates in the second-order rational harmonic mode, and a fiber Bragg grating notch filter is used to block the optical carrier.

这种方法的原理是：调节强度调制器的偏置使其抑制奇数阶谐波的产生，同时使激光器工作在二阶有理数锁模状态，最后用一个光纤光栅消除载波。

Many products such as extra-high voltage XLPE cable with rated voltages of 220KV and up to ,plastic insulated cable,control cable,ACSR with rated voltages of 500KV and up to,aluminum alloy stranded conductors,OPGW, series of low smoke low halogen/halogenfree flame retardant or fire resistance XLPE cables,ship cable,rubber sheathed mined flexible cable signaling cable,computer cable,cable used for digital transmisson,submarine cable,optical fiber cable,underground cable and so on have been the first choice in large or middlesized power transmission and distribution projects at home and abord.

塑料绝缘电缆、控制电缆、220KV及以下超高压交联电缆、500KV及以下超高压充油电缆及附件、500KV及以下钢芯铝绞线、铝合金导线、OPGW光纤复合架空导线、低烟低卤阻燃、耐火系列交联电缆、船用电缆、矿用橡套软电缆、信号电缆、计算机电缆、数据传输电缆、海底电缆、海底光缆、地铁电缆等产品，已广泛成为国内外大中型输变电及配电工程项目的首选产品；多项产品的技术含量和生产能力均居国内领先地位，其中20多顶产品荣获部、省科技进步奖、精品名牌称号、部分产品还受到党和国家领导人的嘉奖。

The transimpedance preamplifier in optical fiber communication is designed by applying the 0.6μm CMOS technology.

利用0.6 μm CMOS工艺设计了一种用于光纤通信的跨阻前置放大器。

The results show that for SiO〓 and GeO〓 glasses, the Rayleigh scatterings arise mainly from the disorders of the densities of atoms, consistent with the assumption of the fictive temperature approximation which is the usual method used in the existing optical fiber theory to calculate Rayleigh scatterings in glasses.

计算结果表明：对SiO〓和GeO〓玻璃，现有光纤理论的瑞利散射处理方法——虚温度近似所作关于玻璃中瑞利散射主要来自玻璃的原子密度无序的假设能很好成立。

It is widely applied in many fields,such as fixed and wireless communication,satellite communication,digital television and broadcasting,optical fiber communication,and magnetic recorders,etc.

LDPC码是第四代移动通信的关键技术之一，在移动和固定无线通信、卫星通信、数字电视和广播、光纤通信以及磁盘存储等诸多领域得到了广泛的应用。

Examples of major investments in recent years include: Tommy Hilfiger and Calvin Klein, two leading fashion brands in Europe and the United States; Travelex, the world's largest non-bank foreign exchange specialist; A number of leading telecom operators in Europe including an incumbent telco in Denmark, a wireless carrier in Greece, and an optical fiber network operator in Germany; Intelsat, the world's leading provider of satellite services; Hub, the leading insurance broker in the United States; New Look, an innovative value fashion retail chain in Europe; and Apollo Hospitals, the largest private hospital chain in India.

近年来成功投资的重大项目包括：欧美领先的服装品牌Tommy Hilfiger与Calvin Klein，全球最大的非银行外币汇兑商Travelex，几家欧洲主导的电信运营商如丹麦电信、希腊移动、德国光纤网络运营商，全球领先的卫星定位服务商Intelsat，美国领先的保险经纪商Hub，欧洲新潮的零售连锁公司New Look，以及印度最大的私人医院集团Apollo Hospitals等等。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。