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At the same time, optical channel drop filters, switches, modulators and optical delayers based on optical microcavities have attracted many interests and show their excellent properties in the WDM system.

同时基于光学微腔的光学滤波器、光开光、光调制器和光延迟器等光电子器件在波分复用系统中也得到广泛关注并体现出优异的特性。

The invention relates to the optical field, in particular to a method used for regulating the optical length of etalons, wave plates and other optical elements.

本发明涉及光学领域，尤其涉及一种调制标准具、波片及其他光学元件光学长度方法。

This paper discussed the basic character of optical fiber gas sensor, and introduced several methods of absorptive spectrum optical fiber gas sensor., and described the principles of the methods in detail, and analyzed the factors of affecting precise of absorptive spectrum optical fiber gas sensor.

简述了光纤气体传感器的基本特性，介绍了几种光谱吸收光纤气体传感的方法，详细阐述了各种传感方法的原理，分析了影响光谱吸收光纤气体传感精度的因素。

Optical fiber winding was a important technique in optical fiber guided missile and lag angle controlled by lead screw subsystem was a key factor in optical fiber precise winding .

光纤自动精密缠绕是导弹光纤制导中的一项重要技术，其中滞后角是光纤精密缠绕中的关键因素，滞后角的控制是通过丝杠子系统来完成的。

According to the wire electrode on the trajectory of the different forms of control, WEDM can be divided into three types:* is a copy-control, cutting their lines in advance to create the shape of the workpiece and the same mode *, When the rough machining parts and die at the same time * Clamping in the machine tool table, in the process of cutting wire electrode tightly * close to the edge of model for mobile track, thus cutting out the model * with the same shape and precision to work; another One is the optical tracking control, the cutting in line before the first parts in accordance with drawings by a certain ratio of enlarge depicts an electro-optical tracking maps, drawings will be processed when the machine electro-optical tracking placed on the stage, followed on the stage The first photo has to follow the ink line graphics track movement, and then through the use of electrical, mechanical linkage to control the machine tool table work together with the relative electrode wire Xiang Sixing do sports in order to cut out the pattern and shape of the workpiece to the same; a re - Is a digital process control, advanced digital automatic control technology, machine-driven process in accordance with the geometry of the workpiece before the parameters of good pre-processing CNC automatic completion of the processing, production do not look like without drawing board also plans to enlarge, in front of more than two Control in the form of higher precision processing and broad scope of application, at home and abroad for more than 95% of WEDM have been using digital technology.

根据对电极丝运动轨迹的控制形式不同，电火花线切割机床又可分为三种：一种是*模仿形控制，其在进行线切割加工前，预先制造出与工件形状相同的*模，加工时把工件毛坯和*模同时装夹在机床工作台上，在切割过程中电极丝紧紧地贴着*模边缘作轨迹移动，从而切割出与*模形状和精度相同的工件来；另一种是光电跟踪控制，其在进行线切割加工前，先根据零件图样按一定放大比例描绘出一张光电跟踪图，加工时将图样置于机床的光电跟踪台上，跟踪台上的光电头始终追随墨线图形的轨迹运动，再借助于电气、机械的联动，控制机床工作台连同工件相对电极丝做相似形的运动，从而切割出与图样形状相同的工件来；再一种是数字程序控制，采用先进的数字化自动控制技术，驱动机床按照加工前根据工件几何形状参数预先编制好的数控加工程序自动完成加工，不需要制作模样板也无需绘制放大图，比前面两种控制形式具有更高的加工精度和广阔的应用范围，目前国内外95％以上的电火花线切割机床都已采用数控化。

Optical phase modulators are used for many applications in optical communication systems, optical processing and microwave signal processing.

光学相位调制技术，在光通信、光信号处理、微波信号处理等领域具有非常广泛的应用。

In anomalous dispersion of monomode optical fiber, an optical soliton is evolved from an optical pulse in the fiber when the nonlinearity is balanced by dispersion.

摘要在单模光纤异常色散区，当非线性与色散平衡时，初始注入的光脉冲演化形成光孤立子。

In this approach, the optical Mach-Zehnder intensity modulator is biased to suppress the odd-order optical sidebands, the fiber laser operates in the second-order rational harmonic mode, and a fiber Bragg grating notch filter is used to block the optical carrier.

这种方法的原理是：调节强度调制器的偏置使其抑制奇数阶谐波的产生，同时使激光器工作在二阶有理数锁模状态，最后用一个光纤光栅消除载波。

Spatial optical solitons are one of the most ideal approach to realize all-optical circuits and all-optical devices.

空间光孤子是实现全光通信及全光器件的最理想途径之一。

We believe that the ring-in-ring structure can be used as optical buffers, signal retarders, optical delay line for optical communication.

这种结构在光通信领域有潜在的应用，如光缓存，光信号延迟器，光学时延线等。

Given the language of section 102(2), the Supreme Court's rejection of substantive review under NEPA seems unjustifiable in principle

按照第102条的规定，最高法院否决《国家环境政策法》所规定的实质性复审在原则上似乎是不正当的。

ObjectiveTo explore the effect of variable hip abduction orthosis on children spastic cerebral palsy.

目的探讨髋关节矫形器在儿童痉挛型脑性瘫痪康复中的作用。