查询词典 reflection grating

In these lasers, a section of Erbium doped fiber without undergoing bump used as saturatable absorber. A self-written grating may be formed by stable standing wave in this absorber. Because selfwritten grating possesses a characteristic of very narrow rejection band and can suppress any other side-band effectively, so the multi-longitudinal mode and mode jumping in other normal fiber ring laser are removed in this one.

将未泵浦掺铒光纤作为饱和吸收体，利用驻波干涉在掺铒光纤中诱发的自写入光纤光栅，由于自写入光纤光栅具有窄带滤波特性及对边模有效的抑制作用，解决了一般光纤环形腔激光的多纵模和易跳模之问题，获得具有极窄线宽，不跳模时间大于3小时单频激光输出。

On a grating type gear integrated error measuring equipm ent, this technique employs the three-point method error separation technique fo r separation of the systematic error of the measuring chain of equipment spindle system including measuring worm error, grating transducer error, bearing rota ry error etc.

在一台光栅式齿轮整体误差测量仪上，它用三点法误差分离技术能分离开仪器轴系测量链的系统误差(包括测量蜗杆误差、光栅传感器误差、轴承回转误差等)和被测齿轮的全谐波误差。

The basic principle and experimental method of nonlinear guided-wave optics were employed to investigate all kinds of characteristics of nonlinear dynamic grating and its application by studying Kerr effects of nonlinear multilayers media film as well as interactions between guided wave and grating vector.

采用非线性导波光学基本原理和实验方法，通过对非线性多层介质薄膜的光学克尔效应的研究，导波与光栅矢量相互作用的研究，进一步探讨了非线性动态光栅的各种特性及其应用。

It was found that the transmission spectrum of the filter is the cosine function modulated reflection spectrum of the fiber grating.

结果表明该滤波器的透射光谱是余弦函数调制后的光纤光栅反射光谱。

A new-style system that automatically measures the diffraction efficiency of plane reflection grating was designed.

设计了一种快速自动测试平面反射光栅相对衍射效率的新型系统。

A new type of geophone is presented,based on the narrow band transmission and free of back reflection features of long period fiber grating.

基于长周期光纤光栅能透射特定波长的性质，以及其无后向反射的优点，提出一种新型的长周期光纤光栅地震检波器系统。

By collecting images of fringes of equal chromatic order and comparing them,the influence of many factors on FECO and clearance calculation of surface forces apparatus,such as the distance between the object glass and the contact point,the grating constant of spectrometer,the angel between total reflection triple prism and the flat of inner beam path and so on,was analyzed.

通过采集图象进行对比分析的方法，讨论了表面力仪中物镜与接触点的距离、分光仪光栅常数、全反射三棱镜与单色仪光路光学平面夹角等因素对FECO条纹以及后续计算的影响，并介绍了表面力仪中计算表面间隙的两类主要方法。

It extends the application of nanosecond laser in laser-induced microstructures,and provides a new method for micromachining reflection grating in metal.

该研究拓展了纳秒激光在加工微结构方面的应用，为在金属材料表面制作纳米压印模版提供了一种新方法。

Fiber Bragg grating; reflection wavelength ; high temperature characteristic ; temperature sensitivity coefficient

光纤布拉格光栅；反射波长；高温特性；温度灵敏度系数

Experimental results. show that the step number and ratio between the etching depth and the light wavelength are closely associated with the diffraction efficiency of reflection step grating.

初步试验表明，反射型阶梯光栅的衍射效率与台阶数、蚀刻深度与入射波长的比值均有密切相关。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。