查询词典 optical

Centre for Optical and Electromagnetic Research, State Key Laboratory of Modern Optical Instrumentation, Joint Laboratory of Optical Communications of Zhejiang University, Zhejiang University, Hangzhou 310027

秦山；强则煊；何赛灵浙江大学现代光学仪器国家重点实验室，光及电磁波研究中心，杭州 310027

For this kind of interferometer, the change of its optical path is cause by the movement of the optical wedge, and the optical path difference is related to the wavelength of the incident light.

其中绝大部分都是以迈克尔逊干涉仪的原理为基础的。本文所讲的干涉仪也是如此，但其光路部分采用的是折射式扫描结构。

The optical matrix under paraxial approximation can make the calculation of optical transmission easy and convenient in designing optical system.

傍轴近似下的光学矩阵理论，可以简化光束传输计算过程，使光学系统设计更为方便。

Company's main business place for the fiber-optic connectors, fiber optic adapter, fiber optic short pin, opto-couplers and other passive components of optical fiber communications and optical follow-up box,, patch panel, cable boxes, such as transfer of optical wiring products , sales and technical services.

福地公司主营业务为光纤连接器、光纤适配器、光纤短插针、光耦合器等光纤通信无源器件和光纤接续盒、终端盒、配线架，光缆交接箱等光配线产品的生产、销售和技术服务。

Our company established in 2003, is Sichuan Panxi area networks, security systems integrators, including the network system security system set and two operations, the main business network system has a full range of optical products: fiber optic transceivers, fiber optic splitter, fiber jumper, fiber optic MODEM, fiber-optic switches, fiber-optic conversion head, optical fiber and cable, fiber optic single-mode to multimode, fiber couplers, optical terminal boxes, etc.; integrated wiring a full range of products: patch panel, modules, panels, cable, crystal head, of the rationale for line planes, jacket, etc.; switch various modules: MINI GBIC, GBIC, Gigabit Fast fiber module; Fluke Corporation is qualified network monitoring equipment distributors, large and medium-sized enterprises to be able to provide network surveillance testing, fault location, network performance evaluation, as well as third-party network maintenance.

本公司2003年成立，是四川攀西地区网络、安防系统集成商，包括网络系统集和安防系统二大业务，网络系统主要业务有光纤全系列产品：光纤收发器，光纤分路器，光纤跳线，光纤MODEM，光纤交换机，光纤转换头，光纤光缆，光纤单模转多模，光纤耦合器，光端盒，等；综合布线全系列产品：配线架，模块，面板，网线，水晶头，理线架，护套，等；交换机各种模块：MINI GBIC ， GBIC ，千兆百兆光纤模块；公司是FLUKE 网络监控设备的合格经销商，能够为大中型企业提供网络监控测试，故障定位，网络性能评估，以及第三方的网络维护。

The invention discloses a passive optical network signal monitoring method comprising the following steps: obtaining a PON signal from one side of an optical line terminal and an optical network unit, detecting the photoelectric property parameter of the obtained PON signal and judging whether the detected photoelectric property parameter lower than a predeterminate photoelectric property parameter threshold or not, if it is, a corresponding alarming signal is transmitted to the OLT.

本发明公开了一种无源光网络信号监控方法，包括以下步骤：获取来自光线路终端和光网络单元中一侧的PON信号，检测所获取的PON信号的光电性能参数；和判断所检测出的光电性能参数是否低于预设的光电性能参数阈值，如果是，则发送对应设置的告警信号给所述OLT。

The proper optical fiber,plane directional optical grating and concave reflector were chosen and integrated together based on the theoretical computation for the optical layout of the spectrometer.

设计一种微型可见光CCD摄像光谱仪的光学结构，通过理论计算，选用合适的光纤、平面定向光栅和凹面反射镜，并将它们合理组合，采用聚焦反射和分光的方法，将待测光进行色散，直接投射到CCD接收器件的表面。

It is a particular advantage of the invention that an improved optical read-out may be obtained if the optical disk has one or more parameters outside the specifications and/or standards associated with the optical disk.

本发明的一个特别优点在于，如果光盘具有与光盘相关的规格和/或标准之外的一个或多个参数时，可以获得改善的光学读出。

The distributed optical fiber sensors based on optical time domain reflectometry are the easiest ones to become products in all these distributed optical fiber sensing technology.

而在众多分布式光纤传感技术中，基于光时域反射计的分布式光纤传感器是最容易实现工程化、产品化的技术。

Optical time-domain reflectometry located the regions where optical attenuation occurred due to leakage; optical power meter acquired the transmitted power at the end of fiber, and these events could be identified according to the characteristics of signals.

在光入射端，用光时域反射计对上述事件引发的损耗进行定位；在光输出端，用光功率计检测光功率的变化，并根据信号特徵来判定事件的类型。

For every one of my New Year resolutions, I have been a backslider for years.

说到我的新年决心，我每年都做

With empathy and focus on a feeling level, we can all relate to the common ground of mutuality of emotions.

有了同情心和感觉上一级的重点，我们都可以涉及到相互的情感共同点。