Kinds of optical modulation sensors, especially lightwave phase modulation sensors are studied.
系统研究了各种光波调制传感器，重点研究了光相位调制传感器。
A method using optical fiber in experiment of electro optical modulation is presented and its advantage is discussed.
介绍了用光纤扩充电光调制通信教学实验的方法和特点。
Optical modulation and demodulation implementation scheme in mobile atmospheric laser communication system are designed.
论文设计了移动大气激光通信系统中的光信号调制解调的实现方案。
The optical attenuation is used as optical modulator of demodulation system, which solves the problem of optical modulation.
将光衰减器用作解调系统的光调制器，解决了解调系统光信号的调制问题。
The optical modulation characteristics, differential gain (DG), differential phase (DP) and signal-to-noise ratio (S/N) are described as well in this paper.
文中论述了光调制特性、微分增益（DG）、微分相位（DP）、信噪比（S/N）等重要问题。
An external modulation laser technology of electro-optical modulation technique has been widely used because of its advantages which can not be got by others.
其中光外调制技术中的铌酸锂电光调制技术因其具有其它调制方式所不及的优点而被广泛应用。
It is high promising to prepare optical modulation emission materials by incorporating lanthanide complex into photo-responsive azobenzene-containing polymers.
将稀土配合物引入光响应性偶氮苯聚合物体系，有望得到可光调制发光材料。
Semiconductor optical amplifier (SOA) is very fit for all optical modulation format conversion due to its high nonlinear characteristics, lower switch power and small size.
半导体光放大器(SOA)由于具有高非线性特性、低开关功率和尺寸较小等优点，非常适合用来实现全光码型转换。
This paper takes modulation technique as main hint, summarizes the essential principle of analogue modulation technology, optical modulation and digital modulation technology.
以调制技术为主线，介绍有线电视系统中模拟调制技术、光调制技术和数字调制技术的基本原理。
The optical modulation system generates and modulates light and generates an image in response to the drive control signal and then scans the image for projecting onto a screen.
所述光学调制系统响应 于所述驱动控制信号来产生和调制光并产生图像并随后扫描所述图像以 便投射到屏幕上。
Under a certain deliver distance and the light power, the different sub-carries number to exist a best optical modulation index, making the system's carrier-to-noise ratio biggest.
一定的传输距离和发射光功率情况下，不同的子载波数存在一个最佳的光调制指数，使得系统载噪比最大；
The experimental principle of electro-optical modulation is introduced. The work-point choosing methods used in the electro-optical modulation experiment are explained theoretically.
介绍了晶体电光调制实验的原理，给出了两种调节电光调制器工作点的方法，并从理论上对两种方法进行了解释。
Electro-optical effect and optical conductive effect of BSO crystals is studied in this paper. The opto-electro optical modulation is realized using these two kinds of optical effects.
本文研究了BSO晶体的电光效应和光电导效应，并利用这两种效应实现了光-电-光调制。
By means of computer simulation, Lissajou figure of the rectangular wave magneto-optical modulation method was investigated, and the principle and precision of this method were studied.
运用计算机模拟，对矩形波磁光调制的利萨如图形进行了详细考察，研究了其检偏原理，并对其检偏精度进行了分析。
The results also show that the performance of this communication system can be affected by background optical, APD gain and modulation extinction ratio.
该通信系统还受背景光、雪崩光电二极管（APD）增益和调制消光比等因素的影响。
The technology of modulation and demodulation is one of the hotspot research in Optical Wireless Communication.
调制解调技术一直是光无线通信领域中的研究热点之一。
The modulation transfer function(MTF) is one of the fundamental parameters to evaluate the infrared optical lens.
调制传递函数是评价红外光学镜头性能的最基本的技术指标之一。
Optical heterodyne magnetic rotation enhanced velocity modulation spectroscopy (OH-MR-VMS) is an absorption spectroscopic technique for selective detection of the molecular ions.
光外差磁旋转速度调制光谱技术是一种对离子分子选择性测量的高灵敏激光吸收光谱技术。
The principle and experimental results of phase modulation optical heterodyne detection technique for measuring reflection of optical cavity are described.
本文叙述了用位相调制光外差技术探测光学谐振腔反射特性的原理及实验结果。
Optical heterodyne Zeeman modulation magnetic rotation spectroscopy (OHZM MRS) is a high sensitive spectroscopy technique.
光外差-塞曼调制磁旋转光谱技术是一种高灵敏的吸收光谱技术。
The effect of self steepening on the modulation instability of optical pulses in decreasing dispersion fibers is investigated.
研究了自变陡效应对色散缓变光纤中光脉冲的调制不稳定性的影响。
The chirp performance of converted signal in wavelength conversion based on cross gain modulation (XGM) in semiconductor optical amplifier (SOA) was analyzed.
对基于半导体光放大器中交叉增益调制效应的波长转换后信号的啁啾特性进行了分析。
The performance for the frequency modulation of electrical feedback optical transmitters is presented.
本文研究了电反馈光发射机的频率调制特性。
The figures of optical system, longitudinal aberration and modulation transfer function (MTF) are given.
给出了光学系统图、纵向像差图及调制传递函数图。
The wavelength conversion based on cross gain modulation in a semiconductor optical amplifier (SOA) has been experimentally studied.
对基于半导体光放大器交叉增益调制的波长转换进行了实验研究。
Firstly, we find that NOLM has a function of compressing optical pulse width, self-phase modulation (SPM) in NOLMs is a crucial reason.
通过研究它的光学特性，我们发现，由于自相位调制(SPM)，NOLM有压缩光脉冲脉宽的功能。
By analyzing the direct frequency modulation and optical feedback effect of laser diode, a theoretical model for measuring small vibration displacement and velocity is discussed.
分析了在直接频率调制下，激光二极管中的光反馈效应，探讨了振动微小位移和速度的理论模型。
According to optical transfer function, degree of modulation and apperceive degree of space frequency vision vs object image, TIFF grayscale scenograph is made.
根据光学传递函数、调制度和空间频率视觉及对物象的感知程度，制作TIFF格式透视灰度图。
Multilevel laser power modulation is a key technology in multilevel optical data storage systems based on photochromism.
多阶激光功率调制是光致变色多阶光数据存储的一项核心技术。
Optical phased array can be divided into regular optical phased array and irregular optical phased array depending on the size of modulation units.
光学相控阵按照调制单元尺寸的大小关系可以分为规则光学相控阵和非规则光学相控阵。
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