导波

The Control System for Sealed-off and all-metal RF-excited CO_2 Lasers;2. An experimental study of 100W radio excited diffusively cooled all-metal rectangle waveguide CO_2 laser was carried out.

对新型百瓦级射频激励扩散型冷却全金属矩形波导CO2激光器进行了实验研究，实验中采用了CASE-I平行平面腔，试验结果表明，在采用10%透过率的输出镜时，激光输出最大功率达到146 W，电光转换效率达到17。

Beijing Institute of Technology, Beijing 100081,ChinaIn order to get the high output power, a RF excited diffusively cooled all-metal slab waveguide CO2 laser was reported, in which gas discharge region was constructed by two aluminum side walls and aluminum electrodes. The region dimension was 2 mm height×20 mm width×386 mm length, and the gas composition was CO2:N2:He:Xe=1:1:3:0.26. This technique replaced the old ceramic and metal sandwich waveguide technique.The optimum out power 127 W was achieved from the RF excited diffusively cooled all-metal slab waveguide CO2 laser with the longitudinal voltage uniformity distribution technique and scaling area technique. The electro-optic conversion efficiency was about 14%.

为了获得较高的激光输出功率，介绍了射频激励扩散冷却全金属板条波导CO2激光器，放电区域由左右两个铝合金壁和上下两个铝合金电极构成，放电区域高2 mm，宽20 mm，长386 mm，工作气体混合比CO2：N2：He：Xe=1：1：3：0.26，该技术代替了过去的金属陶瓷结构，结合纵向电压均匀分布技术和面增比技术，获得了127 W的激光输出功率，光电转换效率高达14%。

The transmission property and many kinds of discontinuity of SIW were discussed in this paper.

本文主要研究基片集成波导的传输特性及其各种不连续性问题。

This method can be used to analyze the dispersive characteristic of arbitrary mode SWS with arbitrary boundary in theory.

论文首先在直角坐标系下，给出了FDTD差分方程和周期性边界条件的具体形式，并编写程序，分析了周期性加载金属片矩形波导的色散特性。

Based on the traditional geometric optics principles and the method of ray tracking, this paper reports the calculation of the aberration of the mode index lens when the collimated beam incidents upon it inclinely with an angle, and the divergency of the output beam from the MIL when it works as a collimator for the end-butt coupling between the semiconductor laser and the waveguide.

本文从传统几何光学原理出发，用光线追迹的方法来计算研究准直光束斜入射到模折射率透镜上产生的像差，以及当半导体激光器与波导端射耦合以MIL作为准直透镜时，输出准直光束的发散情况，并探讨MIL在集成光学频谱分析仪中作为准直或会聚透镜的适用性。

Third, we make a Ka band doubler according to the simulating results and measure it.

输出端使用标准波导形成高通滤波器，抑制了21GHz以下的信号。

The dual wavelength operation of a new type InGaAs-GaAs ridge waveguide distributed Bragg reflector lasers is realized.

对一种新型InGaAs-GaAS脊波导分布式Bragg反射半导体激光器双模运行特性进行了研究。

The dielectric discontinuities in waveguides Eire analysed by finite element method in combination with perfectly matched layers.

本文将矢量有限元法与完全匹配层相结合对波导介质不连续性问题进行分析。

The mode content is an important characteristic of the electromagnetic wave transmitted in waveguides.

模式是传输在波导中的电磁波的一个重要特性。

A equivalent layer stiffness matrix which represents the information of the whole infinite domain is derived.

特别是对电磁开域问题和波导传输问题提出了一些新的有限元处理方法。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。