线宽

Fluxible PAA solution is deposited on quartz glass substrate by MicroPendirect-writing deposition process and imidized to polyimide sacrificial layer in oven;Au paste structural layers are fabricated by MicroPen direct-writing deposition technology,and finally released by oxygen plasma dry etching process.Technological procedures and mechanisms of the LMM direct writing technology arestudied systematically by theory analysis and experiments.

在设备和材料体系基础(来源：A70BC论0c文网www.abclunwen.com)上，系统研究了基于激光-微笔／微喷直写工艺集成制造MEMS牺牲层、结构层及导电电极图形的工艺机理和质量控制规律，结果表明：(1)笔头内径、笔头与基片间距、驱动气压和直写速度是影响微笔直写沉积膜层线宽、膜厚及表面形貌的主要工艺因素。

Analyses of measurement error of self-heterodyne/homodyne methods have been studied.

对延迟自外差／零差激光线宽测量方法进行了误差分析。

In this dissertation, the characteristics of Er〓 doped fiber ring resonators below and upper threshold, as well as homodyne method for measuring the laser's linewidth, is systemically analyzed by both theoretical and experimental ways.

本文对掺铒光纤环形腔在阈值以下、阈值以上多种工作状态中的特性及其与之紧密相关的零拍激光线宽测量方法，进行了系统性的实验研究和相关的理论分析。

The effect of linewidth of the transmitted laser on measurement sensitivity and error of double-edge noncoherent wind lidar is presented.

论述了Rayleigh散射双边缘直接探测激光测风雷达发射激光线宽对探测灵敏度和误差的影响。

The third, since the electrons in the plasma are accelerated and ions move together, some harmful effects are also observed, such as both output powers of RBWO and FEL decrease versus the increase of plasma density. The results agree with the results of linear fluid model. In the unmagnetized plasma-loaded RBWO-FEL, output powers of pump source and FEL are obtained only in a narrow plasma density range and both have maximum. The results of simulation are in good agreement with the experimental results.

模拟分析了磁化等离子体填充的RBWO-FEL，尽管没有发现等离子体填充后RBWO及FEL输出功率的成倍增长，但是观察到等离子体的引入对RBWO-FEL产生以下影响：泵波及FEL的辐射频率的线宽得到明显增加；在较高的等离子体密度下，TM〓模将会被完全抑制；首次观察到T-G模振荡及功率输出，结果同线性理论计算结果基本一致；等离子体中的电子被加速及背景离子的移动将对器件工作产生不利影响。

To meet the needs, a novel low-noise fiber laser with compound cavity structure is designed. The stable single-mode operation is realized by using a transient self-written fiber grating, produced by the effect of saturable absorption within a section of unpumped erbium-doped fiber, as narrow band filter for mode selecting and linewidth squeezing. Through optical path modification, the spectral signal-to-noise ratio is better than 62 dB.

激光器采用复合腔结构，以掺铒光纤作为工作物质，通过在未被抽运的掺铒光纤中形成的瞬态自写入光纤光栅的窄带滤波特性进行选模和压窄线宽，产生稳定的单频激光输出；经过光路改进，激光输出光谱信噪比优于62 dB；利用光电负反馈电路，弛豫振荡峰下降了约25 dB，低频段强度噪声也大为改善，有效地抑制了光源的强度噪声。

The function of 3dB fiber loop mirror in fine wavelength partition is studied. With this theory, a novel narrow linear band, dual-wavelength switchable Er-doped fiber laser is realized.2. An unpumped Er-doped fiber and broadband fiber Bragg grating with high reflectivity is served as an auto-tracking filter, where the space hole-burning effect appears when the laser signal travels and forms standing wave, thus the generation of multi-longitudinal-mode is suppressed. Then the high birefringence fiber loop mirror is introduced to act as comb-liked wavelength filter.

主要包括：1、发现3dB光纤环镜的精细波长分割作用，并利用这种分割机制，研制成功一种窄线宽、双波长可转换的掺铒光纤激光器。2、利用未受泵浦的掺铒光纤以及宽带高反射率的光纤布喇格光栅做自动跟踪滤波器，当穿行其中的激光信号构成驻波时，出现了空间烧孔效应，从而抑制了多纵模的产生，引入高双折射光纤环镜做梳状波长滤波器。

The relation between ablated feature size of thin films and femtosecond laser parameters is discussed in details.

本文主要研究分析了刻蚀产生的线宽与激光功率、加工速度、扫描次数、显微物镜数值孔径之间的关系。

Because of the convolving effect between auto-tracking filter and the comb filter, the narrow linear band, multi wavelength optical fiber laser is acquired.3、A design of introducing a polarizer into the Michelson cavity is presented, which lead to further improvement of the coherent combinative effect. Moreover, the necessity to introduce such a polarizer is analyzed qualitatively in theory.

进而利用二者之间的卷积效应，研制中一种新颖的窄线宽多波长的光纤激光器。3、提出在Michelson式结构中引入起偏器，使激光相干合成效果得到了进一步的提高，而且从理论上定性分析了引入起偏器的必要性。

In this paper, the experimental results of an unidirectional operation laser, includins input-output curve, the power ratio of the two oppositely travelins waves under different coupler transittunces and pump levels, the tuning characteristics with a prism in the external cavity, and the narrowing of the output spectrum with etalons, are given.

本文给出了该结构钛宝石激光器的输入一输出关系、双向波功率比随泵浦功率和输出耦合率的变化、外腔棱镜调谐特性，以及腔内插入标准具进行线宽压窄的实验结果。标签钛宝石激光器环形腔 Ti： Sapphire laser ring pesonator

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。