查询词典 optical path

Moreover, the high frequency radio can also be used in the optical label switching. The subcarrier multiplexing optical label and optical carrier suppression and separation optical label are based on modulating lightwave by radio, which were studied much and maybe have a good future.

另外，在光标记交换领域，利用高频的无线信号调制光波实现的副载波光标记和光载波抑制光标记现已有一些研究，这两种标记实现方案有很好的应用前景，但还有一些问题需要深入研究，本论文对SCM光标记信号的传输距离受限问题和OCSS光标记分组的全光波长变换问题进行了深入研究，并得到了一些有价值的结论。

Based on the introduction of optical tweezers,the main points of this dissertation are the measurement of optical force from optical tweezers with different microscope objectives,and the initial research of combination of optical tweezers and patch clamp aiming to research cell's electrical characteristics.

本文在对光镊进行简要介绍的基础上，重点展开对光镊使用不同放大倍率显微物镜对细胞的捕获能力的分析和光镊与膜片钳结合用于研究细胞电特性的初步研究。

The basic structure of the invention are that: two optical fibers the end surfaces of which are plated with high reflection films, the tops of one or two plating optical fiber end surfaces are produced with a micro lens, the plating optical fiber end surfaces are mutually level and parallel so as to form the lenticular optical fiber Fabry-Perot interferometer.

本发明的基本结构为：两根端面镀高反射膜的光纤，其中一个或两个镀膜光纤端面上制作有微透镜，镀膜光纤端面相互对准、平行构成微透镜光纤法布里-珀罗干涉仪。

The parameters include waveguide width: 8μm, titanium film thickness:50~60nm, index change: 0.006, diffusion temperature: 1050 and diffusion time: 9~10 hours.Designed and produced a 2 X 2 coupler Optical switch and a 1 X 2 digital optical switch. The coupler optical switch was produced by AP reversal structure, with the main parameters such as total length of switch: 30mm, waveguides center distance: Hum, interaction length: 17mm, and at 17V with a crosstalk of -18dB. The digital optical switch was produced by asymmetry electrode Y branch structure. The main parameters of this switch such as switch length: 25mm, the angle of Y branch: 0=0.1? center distance at branch end: 30μm, the center distance of electrons: 12μm, and at 27V with a crosstalk of 18dB.

设计并制作了2×2耦合型光开关和1×2数字开关，其中耦合型开关主要采用的反转Δβ定向耦合器开关，开关长度约30mm，波导宽度8μm，波导间距14μm，耦合区长度17mm，电极主要采用三电极结构，最终测得对TE模开关电压＜-15，消光比≈18dB；数字开关采用非对称电极Y分叉数子开关结构，利用BPM软件模拟了其开关特性并优化了器件参数，制作中采用的主要参数为：开关长度约25mm，Y分叉角θ=0.1°，Y分叉末端波导间距30μm，电极间距12μm，最终测得开关电压27V，消光比≈18dB。

The following are very important peculiar parameters, such as optical fibers winding waste, side vibration to optical fiber communication, optical fiber rasses and optical fiber not rectilinear est.

光纤的损耗、偏振对光纤通信、光纤传感以及光纤非线性等研究是十分重要的特性参量。

Based on the objective lens and voice coil motor of the current DVD pickup head,according to photobleaching three-dimensional (3D) optical information storage's theory of two-photon absorption,the Ti∶sapphire femtosecond pulse laser was used as written optical beam and reading optical beam of two-photon three-dimensional optical storage voice coil motor was carried through multiplayer choice, and the storage and readout experimental study of binary format code with two-photon photobleaching in the new photobleaching material consisting of stilbene derivant was conducted.

基于现有的DVD光头物镜与音圈电机，根据光致漂白的双光子吸收三维光信息存储原理，以钛蓝宝石飞秒脉冲激光进行双光子光信息写入和读出，利用音圈电机进行选层，在新型光致漂白材料二苯乙烯衍生物中进行光致漂白二进制编码信息的存储和读出实验研究；实现了三层光信息存储，信息点间距和信息层间距分别为4 μm和15 μm；用Matlab软件读出信息的信号强度并对其进行了识别，识别结果与写入的二进制编码信息完全一致。

The main content includes as the follows:(1) An automatic neighbor discovery mechanism applicable to SDH network is proposed;(2) For the optical network with Optical Transfer Unit in WDM, a General Multi-protocol Label Switch-based automatic neighbor discovery mechanism is proposed and simulated;(3) Three automatic neighbor discovery mechanisms for the all-optical network with OEO module are proposed and comparatively simulated;(4) With the Loss of Light detecting, a novel automatic neighbor discovery mechanism in all-optical network without any OEO module is proposed.

主要工作包括：（1）提出了SDH网络的自动邻居发现机制；（2）提出了带波长转换器的光网络的自动邻居发现方案，并通过仿真对发现过程进行了跟踪和统计；（3）提出了三种带有光电转发模块的光网络的自动邻居发现策略，并做了仿真比较；（4）提出通过光丢失检测方式对不带OTU的光网络进行自动邻居发现的实现方法。

Optical fiber communication is transferring form point-to-point transmission to mesh network. Traditional optical-electronical-optical transformation limits the data rate and adds the cost. With reconfigurable optical add/drop multiplexer for signal switching and routing, the OEO transformation can be bypassed, reduceing equipment size and cost.

光纤通信由点到点传输向网格化发展，传统的光—电—光转换过程限制了通信速率并导致成本增加，采用可重构光分叉复用器进行光交换和光路由，可以省去光—电—光转换过程，缩小尺寸和降低成本。

By the optical matrix, the effects have been analyzed quantitativelly, and point out that equivalent length of optical path is the different concept from optical distance.

通过变角度衰减片的光学传播矩阵定量地分析了这些影响，特别提到光路的等效长度与光程是不同的概念，需要分别考虑。

Week 5 Optical path, difference of optical path, Yang interference of two slits, film interference.

第5周 光程，光程差；杨氏双缝干涉，薄膜干涉。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。