该全光脉冲整形器利用波分复用器将控制光脉冲引入光纤环形镜中,控制光脉冲由于交叉相位调制在信号光上产生了非线性附加相移。
Control pulse is coupled into this pulse shaper by wavelength division multiplexer. Nonlinear phase shift of signal laser is induced by control pulse because of cross phase modulation.
结果表明:啁啾光脉冲的振幅调制深度和相位扰动深度越大,则压缩后的光脉冲对比度越小;啁啾光脉冲的振幅调制周期和相位扰动周期越小,则压缩光脉冲的预脉冲宽度越大。
The simulations show that more amplitude modulations and phase perturbations lead to lower contrast of the compressed pulse, and bigger modulation cycle results in wider pre-pulse width.
首次建立了微变形镜阵列的光相位调制系统级模型。
Moreover, the optical phase modulation behavior model of micro deformable mirror arrays is established for the first time.
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。
The optical modulation characteristics, differential gain (DG), differential phase (DP) and signal-to-noise ratio (S/N) are described as well in this paper.
结果表明:啁啾光脉冲的振幅调制深度和相位扰动深度越大,则压缩后的光脉冲对比度越小;
The influences of the SPM with amplitude modulations and phase perturbations on the compressed pulse is simulated.
详细讨论了群速度失配、群速度色散和三阶非线性相位调制效应对倍频光脉冲波形、光谱及转换效率的影响。
The effects of group-velocity mismatch and dispersion, third-order nonlinear phase modulation on pulse shape, spectrum distribution and conversion efficiency of second-harmonic pulse were discussed.
基于压电陶瓷的逆压电效应,采用压电陶瓷作为光相位调制器设计了光纤微分干涉仪。
A piezoelectric ceramic, based on the converse piezoelectric effect, was used as optical phase modulator to design a fiber differential interferometer.
通过改变光子晶体的结构参数可以实现对反射光相位的调制。
Therefore, the reflective phase modulation will be achieved by variation of the structure parameters of photonic crystals.
我们理论分析并实验验证了一种利用多频相位调制产生等振幅光梳的方法。
We theoretically analyze and experimentally demonstrate a method of generating equal-amplitude optical comb exploiting multi-frequency phase modulation.
根据空间光调制器的相位调制作用,提出了一种灰阶纯位相匹配滤波器编码方法。
A kind of coding method of gray-scale phase-only matched filter according to the phase modulation property of the spatial light modulator has presented.
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。
Firstly, we find that NOLM has a function of compressing optical pulse width, self-phase modulation (SPM) in NOLMs is a crucial reason.
提出采用光学移相办法测量超高频调制光相位特性的一种方法。它具有精度高、实用性强等特点。
A method for measuring the phase characteristics of ultrahigh frequency modulating light by optical phase shift is proposed. It has the properties of high precision and strong practicability.
提出采用光学移相办法测量超高频调制光相位特性的一种方法。
A method for measuring the phase characteristics of ultrahigh frequency modulating light by optical phase shift is proposed.
当两相干光附加一按固定频率变化的相位差时,其干涉条纹的光强将随之交变,即为相位调制干涉。
In addition to alternating phase difference between two aims of interferometer, the intensity of light of the interference fringes will vary in the same frequency, which is called as phase modulation.
混合集成光学加速度计是一种实用型的实时加速度传感器,在信号处理过程中采用了光相位调制和交流相位跟踪零差补偿技术(PTAC)。
The hybrid integrated optical accelerometer is a kind of practical accelerometer, which adopts optical phase modulation and alternating current phase tracking and homodyne compensation scheme (PTAC).
光纤陀螺中的一些器件如相位调制器和光学开关、消光器甚至光波导谐振腔都可以集成在一个多功能集成光学芯片上。
Devices such as phase modulators, optic switches and even optic waveguide resonators can be integrated on a multi functional integrated optic chip.
用衍射光学方法研究了加有多级相位菲涅尔波带片(MPFZP)的空间光调制器(SLM)的轴上衍射光强。
The diffracted light intensity on axis of a Spatial light Modulator (SLM) with Multi-level Phase Fresnel Zone Plate (MPFZP) is studied by diffraction optical method.
利用空间相位调制技术控制高斯光束在光伏晶体中的传播。
Based on the technology of spatial phase modulation, a simple scheme to steer optical Gaussian beams in photovoltaic media is presented.
利用光纤在流体中光的强度、相位、频率等受流量调制的特性,在传统流量传感器的基础上,可以制得新型的光纤流量传感器。
Based on the traditional flowmeter , a new type flowmeter is fablicated utilizing the features of the fiber2optic in fluid , in which the amplitude , phase or frequence of the light may be modulated.
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。
Kinds of optical modulation sensors, especially lightwave phase modulation sensors are studied.
相位跃变是受激背散射光与入射激光间的增益与损耗调制的结果。
In the process of compression the author observed phase jump, which is the modulating result of gain and loss between the Stokes light and incident light.
相位调制器与振幅调制器是连续变量量子密钥分发中不可缺少的光调制器件。
Phase modulator and amplitude modulator are both indispensable optical modulator in quantum cryptographic communication.
提出外部光注入半导体激光器混沌相位控制方法,通过周期调制注入光的相位相移将激光器的混沌控制到多种周期状态。
In this paper, a method of chaotic controlling is presented via controlling the phase in semiconductor lasers under to external optical injection.
聚合物单体由于光敏感性好、折射率调制度大和分辨率高等优点在全息聚合物光栅、光了晶体和光相位调制器等器件中得到广泛的应用。
Good photon sensitivity, large index modulation and high resolution make monomer in a number of applications such as holographic polymer grating, photonic crystal and light phase modulator.
由于光相位调制器不需要直流偏置,不会遇到直流偏置漂移问题。
The optical phase modulator does not suffer from the bias drifting problem as it does not need DC bias.
在经过光相位调制器之后,输出光信号的包络保持不变,能被基站用来承载强度调制的上行信号。
The envelope of output optical signal after the phase modulator keeps stable and the optical signal can be used to carry uplink data back to the base-station.
研究结果表明,群速度失配会导致二倍频光脉冲宽度的增大和转换效率的降低,非线性相位调制使二倍频光脉冲形状发生畸变,降低转换效率。
The results show that group-velocity mismatching is the main reason of the broadening of the second harmonic pulse and could lead to the decrement of conversion efficiency.
基于硅光波导的四波混频(FWM)和交叉相位调制(XPM)效应,提出非归零码(NRZ)到归零码(RZ)的光调制格式转换。
A format conversion from a non-return-to-zero (NRZ) signal to return-to-zero (RZ) signal is presented based on four-wave mixing (FWM) and cross-phase modulation (XPM) in a silicon optical waveguide.
此装置采用了一个液晶显示器(LCD),它形成偏相位空间光调制器。
The device is based on a liquid crystal display (LCD), to form a phase-most spatial light modulator.
此装置采用了一个液晶显示器(LCD),它形成偏相位空间光调制器。
The device is based on a liquid crystal display (LCD), to form a phase-most spatial light modulator.
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