查询词典 optical fiber

A high2efficiency coupling system was designed by using t heo ry of optical fiber coupling for t he high2power laser and t he beam t ransform , and in t he system numerical values of lens′apert ure and focus were optimized.

本文针对工业用大功率固体激光的特点，对光纤耦合系统的光束变换，大功率激光聚焦耦合的束宽等影响光纤耦合效率的问题进行了分析。

The campus net optical fiber wide band connects withInternet So it has completer network equipment and other teachingequipment.

拥有13间计算机实验室，高档计算机1000多台，18间多媒体投影室，校园网光纤宽带接入 Internet ，有较为齐全的网络设备和其它教学设备。

Using the new model, we have analyzed the influence of longitudinal-mode number, bandwidth and line-width of pumping source on SBS reflectivity, and pointed out the monochromaticity of pumping laser has obvious affect on optical fiber conjugator.

为此，本文第二章在分析了多模石英光纤作为相位共轭介质和其它介质的异同的基础上，首次为光纤相位共轭器建立了多纵模激光泵浦下的受激布里渊散射理论模型。

Using a 200 μm-core multimode optical fiber as the phase conjugator mirror, an LD-pumped Q-switched four-pass MOPA system operated on 100 Hz repetition rate and 20 ns pulse width has been experimental investigated in this paper.

报道了利用多模光纤作为相位共轭镜应用于重复频率100 Hz，脉宽20 ns的电光调Q四通放大LD抽运激光器的实验研究。

And a way to improve the operation state of this combined phase conjugator is introduced by our modeling.

标 签 熔石英光纤相位共轭光束质量 fused silica optical fiber phase conjugation beam quality

The effects of processing parameters in thermal poling, such as applied poling voltage, poling duration and ambient temperature, on the linear electrooptic effect created in the optical fiber are investigated.

在线测试了热极化过程的一些参量，例如极化电压、极化时间、以及极化温度等对热极化光纤中产生的线性电光效应的影响。

Laser light travelling in a medium such as an optical fiber, the variations in the electric field of the beam itself may produce acoustic vibrations in the medium via electrostriction.

他们用两个2ns的&数据&脉冲前后耦合入玻璃光纤的一端，来模拟两个几乎同时到达的信息包，同时将一1.5ns的&写&光脉冲耦合入另一端。

The factors include the material, the structure, the refractive index distributing, the length, the diameter, the num erical aperture,thermal effect and the coupling of optical fiber.

这些因素主要包括光纤材料、构造、光纤的折射率分布、光纤的长度和芯径、光纤的数值孔径和热效应以及耦合等。

Pada is driving to supply new applications to peculiar HID, PAR lamps system for airport, stage, building, underwater environment; Special lighting of train and automobile for headlighting and LED signal; Unique HID, UHP and LED lighting for fire fighting, medical lighting, optical fiber lighting, as well as photosynthesis improving and video projector lamp and electronic ballast.

公司特种光源产品主要有：HID/PAR灯系列，主要用于舞台、机场、商场、公园照明和喷泉水底的照明；车用照明系列，主要有机车前照灯，LED信号标志灯，主要用于火车、汽车行车照明和信号照明；HID、UHP和LED等特种光源，主要用于抢险探照、多媒体投影、医疗照明、光纤照明、促进动植物生长等各类特种照明光源灯具和配件。

Therefore, it is useful to make further study on heightener of reflectivity and applying in laser system with narrow pulse-width less than 30ns and high repetition rate more than 100Hz for space -communication and laser-detect.In this paper, a new theoretical model is established for optical fiber pumped by broadband laser.

而对光纤相位共轭器而言，关键问题是如何突破SBS反射率低于60％的瓶颈，并应用到重复频率大于100Hz、脉冲窄于30ns的激光系统中获得较高的稳定性和较好的相位共轭效果。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。