查询词典 optical fiber

The multiplexing technique of optical fiber sensor is also an important developing direction of optical fiber sensor.

光纤传感器的多路复用技术也是光纤传感器的重要发展方向。

Are: various types of optical fiber, optical cable, connectors and fiber optic sensing products and equipment.

主要有：各类光纤、光缆、连接器及光纤传感产品及设备。

The invention relates to a light pumping system for all-solid laser, particularly a light pumping system for disc type laser, comprising heat sink, laser crystal, optical fiber, plane reflector, a first concave reflector, a second concave reflector, and a third concave reflector, and adopting a structure that the plane reflector is between the optical fiber and the first concave reflector, to make the LD and laser cavity on the same side of the laser crystal, thus reducing the packaged size of the laser; the invention fixes the plane reflector on the heat sink to reduce the inclined incident angle of the pumped light beam, thus the pumped light can be fully absorbed, and the invention solves the problem of pumping efficiency and largely reduces the bulk of the laser, beneficial to the all curing of the product and ensuring the cooling requirement of the laser crystal.

本发明涉及全固体激光器的光泵浦系统，特别是一种盘式激光器的光泵浦系统。包括热沉1、激光晶体2、光纤3、平面反射镜4、第一凹面反射镜5、第二凹面反射镜6、第三凹面反射镜7，本发明采用平面反射镜位于光纤与第一凹面反射镜之间的结构，使LD和激光腔位于本发明激光晶体的同一侧，从而减小了激光器的封装尺寸；本发明将平面反射镜固定在热沉上，使泵浦光束斜入射角减小，泵浦光则能充分吸收，为此，本发明解决背景技术采用第一凹面反射镜使泵浦光束斜入射角过大引起的像散，泵浦光斑变形引起泵浦效率降低问题，使得本发明可选用大面积半导体制冷器，避免使用水冷，则激光器的体积大大减少，有利于产品的全固化，保证了激光晶体的散热要求。

In discussing the properties of reflection and refraction of fiber grating, the coupled-mode equation, envelope function, transform matrix formalism, multilayer and optical path approximation are used for describing the linear and nonlinear characteristic of optical fiber grating.

在分析光栅的反射和透射规律时，采用了耦合模式法，包络函数法，转换矩阵法，多层介质薄膜法以及光程法，这些方法虽然具有不同的数学和物理模型，但在分析光纤光栅这一特殊的波导结构时，可充分展现它的线性和非线性特性。

The stable and reliable operation voltage of the probe can be given by the following methods:(1) 20% light coupling efficiency is obtained by direct coupling of LD-optical fiber.(2) The light power is transmitted by multi-model optical fiber.(3) The largest photo-electric conversion efficiency is achieved by selecting the transformer regulation of step-up transformer.(4) The stable light intensity is achieved by using LD light feedback of driving circuit and refrigeration.

通过下述方法可提供稳定、可靠的探头工作电压：LD—光纤的直接耦合方式，可实现20％左右的光耦合效率；采用多模光纤传输功率；选择升压变压器最佳变比提高光电转换效率；采取LD驱动电路光反馈以及致冷措施使其发光幅值稳定。

An optical fiber terminus is located within the receptacle and includes an elongated body (22) with a passage along a central axis for receiving a portion of an optical fiber cable therethrough.

一种光纤末端(10)包括细长本体(12)，该细长本体具有沿中心轴线的用来接收穿过其的光纤线缆的一部分的通路、和指示部分(40)。

Though there is no unrealizable technical difficulty for FTTH, its success shall highlight the following aspects and integrate efforts to solve the key points: develop new device and kernel control chip adapting to features of FTTH, reduce the cost of optoelectronic devices and passive devices; develop low cost, easy installation indoor optical fiber, cable and linker as well as matching construction equipments and tools; develop high density, easy operation optical fiber distribution frame; and develop concentrated remote monitor, management techniques and systems.

FTTH技术是未来宽带接入的主要模式，从长远来看也是其他技术无法取代的，FTTH虽然没有技术上不可实现的难点，但要使FTTH走向成功，以下方面值得重视并应集中力量攻关：开发适应FTTH特点的新型器件和核心控制芯片，降低光电器件和无源器件的成本；开发低成本、易安装的室内光纤、光缆和连接器及相配合的施工仪器工具；开发高密度、易操作的光纤配线架；开发集中的远程监视和管理技术及系统等（178）。

This design greatly improves the reliability,aseismicity and anti-interference of control system. PC/104 bus ; Optical fiber transceiver module ; CPLD ; Optical fiber ; Self-healing

本文设计的PC/104接口板，由于采用了复杂可编程器件CPLD和CAN总线技术，因此节省了硬件资源，提高了抗干扰能力。1 CAN总线1.1概述CAN总线最早由BO

The principle of optical fiber homochromous radiation temperature measurement was described. The mathematical model was created. Aiming at the problem of temperature measurement in bad working environment , quartz optical fiber and narrow band filter were used to design a temperature measurement system in real time based on virtual instrument. Principle and method of the system ,structure of hardware and software were expounded. The methods of data acquisition and data analysis on virtual instruments platformwere explained. Single2chip hardware system and LabVIEW software were adopted to ensure the precision and stability , data storing and long2range display was realized.

介绍了光纤单色辐射式测温原理，建立了测温系统数学模型，针对恶劣环境下的温度测量问题，利用石英光纤束和窄带滤光片，设计了基于虚拟仪器技术的实时测温系统，阐述了系统工作原理和实现方法，以及系统的硬件和软件结构，说明了在虚拟仪器开发平台上进行数据采集与数据分析的实现方法，采用单片机硬件系统和LabVIEW软件系统以保证测量精度和稳定性，并实现了数据的存储和远程显示。

Tapered and lensed fiber is the key device to couple optical energy from optical fiber into planar lightwave circuits high-efficiently.

锥形透镜光纤是实现光纤与平面光波光路芯片高效耦合的核心元件。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。