查询词典 waveguide

Based on Douglas operators, the modified wide beam propagation is presented and the number dissipate is minimized without nearly increasing the memory and computing time. The method is also more stable and accurate than ordinary WBPM. Finally, A novel wide-angle low-loss dielectric slab waveguide Y branch is presented and analyzed by modified WBPM.

接着，本论文还分析广角BPM差分格式所具有的数值色散来源，并在不增加计算时间和内存的前提下，应用Doglas算子大大地减小数值色散带来的误差，提高了计算精度，提出了改进的WBPM，而且还发现这种方法有具计算稳定的优点。

The Y branch of low-loss and wide branch angle can be used as power dividers/combines in modulators, switches, interferometric devices, semiconductor laser arrays, planar silica-based waveguide lasers.

本论文在最后还应用改进的广角光束传播法研究和设计了新型的低损耗Y分支波导结构，这种波导结构同时具有大分支角度的特点，在光波导开关、M—Z干涉仪等光器件中具有重要的应用。

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 method is to move the stoving from inside the pellet producing apparatus to one alone stoving furnace outside the pellet producing apparatus. Inside the stoving furnace, there are waveguide tube connected to microwave generator and conveying belt in the bottom, and the pellet is fed to inside cavity of the stoving furnace on the conveying belt, stoved by microwave quickly and discharged on the conveying belt to vertical pellet furnace for roasting.

该方法是将由人造球团矿加工设备内完成的烘干段工艺移出到设备外完成，在设备外单独设置有一烘干炉体，该烘干炉体内腔有波导管与微波发生器连接，在烘干炉体的底部有输送带，球团通过输送带送入烘干炉体内腔，利用微波发生器产生的微波对球团快速加热烘干，经烘干后的球团，通过输送带送至球团竖炉完成焙烧工艺。

The key technology for splitters of manufacturing ion exchange in glass waveguide is analyzed .

对光功率分配器的关键技术———离子交换法制作光功率分配进行了详细的分析。

A fork waveguide model is proposed and the mode matching and multi-mode network technique are used to analyze the transmission characteristics of rectangular tunnel with metallic pit prop.

针对矩形巷道中由于金属支护立柱的存在而带来的分叉不连续问题，提出用分叉波导模型并用模式匹配法和多模传输理论分析传输特性。

A fork waveguide model is proposed and the mode matching and multi-mode network technique are used to analyze the transmission characteristics of rectangular tunnel with metallic pit prop.

针对矩形巷道中由于金属支护立柱的存在而带来的分叉不连续问题，提出用分叉波导模型并用模式匹配法和多模传榆理论分析传榆特性。

The plane-parallel resonant cavity is built up in theory with the U-shaped bending waveguide for TM mode. The beam splitting and convergence effect are also discussed for the structure composed of filling-factor graded wave-like 2D-PC and one-dimensional multilayer thin films.

利用TM模的U型转弯波导构建了新型的平行平面谐振腔，并指出由填充率渐变型波状结构二维光子晶体和一维多层薄膜构成的混合结构在光分束和抑制光束发散方面的作用及其在平行平面谐振腔中的潜在应用。

Moreover, the first-quantized theory of photons is established, and a quantum-mechanical equation of photons inside a waveguide is presented, these are important for us to study photons locality in three dimensional spaces.

其中给出了光子的一次量子化理论，建立了波导内光子的相对论量子力学方程，这些研究对于光子的空间局域性理论研究有着重要意义。

Besides, a quarter wave plate, an analyzer, a CCD camera, and a personal computer consisted the phase modulation and signal analysis system of this waveguide interferometer.

最后可由本系统程式根据物光的相位变化量算出波导边界上的改变。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。