飞秒激光光梳技术大大简化了光频的测量。
Femtosecond laser-frequency comb techniques are vastly simplifying the measurement.
扼要介绍关于光频载波的初步的实验研究工作。
Briefing of initial experimental study on optical carriers is also given.
本文综合评述了光频标和光频测量研究的历史、现状和未来。
The history, present situation and future of optical frequency standards and optical frequency measurements were presented.
结果表明斜光抽运方案可以有效降低铯原子束频标中的光频移。
The results show, the light frequency shift can be effectively reduced in the sharp Angle laser light pumping scheme.
同样道理，能逃过雷达监测的隐形飞机，用肉眼却是可见的，即在光频下没有隐形。
Similarly, can escape radar monitoring of stealth aircraft, it is visible with the naked eye, that is not under the optical frequency stealth.
讨论了准相位匹配（QPM）技术中的非线性光频转换谐波振幅方程和谐波转换效率。
The harmonic amplitude equation and the generation efficiency of nonlinear optical frequency conversion(NOFC)in quasi-phase-matching (QPM) were discussed.
合适的基频光频率啁啾可以减小三倍频光脉冲的畸变，并有效地提高三倍频转换效率。
Furthermore, the suitable chirp of fundamental field can reduce the distortion of third-harmonic pulse and increase the third-harmonic conversion efficiency.
本文描述一台能改变光频移频率的新装置，它由旋转光栅、同步电机和调频电源组成。
A new device which can change the optical frequency shift is described. It consists of a rotating grating, a synchro motor and a power supply whose frequency can be adjusted.
结果表明。布里渊散射光频移受大气压、水汽压的影响很小。而受大气温度的影响很大。
The result shows that the frequency shift of Brillouin scattering light is scarcely influenced by air pressure and vapor pressure, and greatly affected by air temperature.
极化子是电子与光频支纵声子相耦合系统的准粒子，是凝聚态物理学中的一个重要课题。
Polaron is the quasi particle of the electron-longitude optical phonon coupling system, which is an important subject in the condensed matter physics.
研究了腔牵引效应、微波功率频移、光频移和缓冲气体温度系数对铷频标输出频率的影响。
The cavity pull effect, microwave power shift, light shift and temperature coefficient which mostly influence the performance of RAFS are studied.
利用光频梳和倍频技术，把对光频的测量变为对射频的测量，这样就能够很容易地测出光的频率。
They measured the radio frequency instead of optical frequency measurement with optical frequency comb and technology of octave-spanning.
此实验对下一代“原子钟”的产生是重要的一步，下一代“原子钟”将是基于光频而不再是微波频率。
The experiments are a significant step toward next-generation "atomic clocks" based on optical rather than microwave frequencies.
微波晶体管激光模型可以非常准确的预测频变电和光的属性。
The microwave transistor laser model is very accurate for predicting frequency-dependent electrical and optical properties.
亚微米光栅型导光板通过光栅空频控制出射光方向、控制槽深调节衍射效率，达到导光板出射光强的均匀性。
The transmission angle is controlled by grating frequency and the diffraction efficiency is controlled by groove depth of sub-micro gratings to get uniformity of transmission filed.
本文提出了一种基于多普勒频移的全光纤光路宽速度测量范围的测速传感器——多普勒光纤速度传感器。
This dissertation puts forward a kind of sensor with wide measure velocity range based on the Doppler Frequency Shift and all-fiber path, namely Doppler Fiber Velocity sensor.
它主要由二次谐波产生、和频产生、差频产生、光参量振荡等构成。
It mainly consists of harmonic generation, sum-frequency generation, difference-frequency generation, optical parametric oscillation and etc.
以ooc编码为基础，利用素数跳频技术，提出一种三维无线光cdma编码方案。
Based on OOC code, this paper proposes a coding scheme of wireless optical CDMA by using prime frequency hopping.
在高速实时的光交换系统中有时分、空分和频分主三种交换方式。
Three different architectures (time, space and frequency-division) are used in high speed and real time switching systems.
该装置的电路由脉冲形成源、压频变换器和光耦与功率开关三部分组成。
The circuit of this device is formed the source, pressed frequently by the pulse changer, photosensitive resister and power switch three parts make up.
实验表明，这一方案能够控制光WDM通信系统中的载波频移。
The results of experiments have shown that the design can control well the frequency drift in optical WDM systems.
结果表明：群速度延迟使三倍频光脉冲展宽；
The results show that group-velocity mismatch broadens the width of third-harmonic pulse.
长期连续工作的袖珍激光系统是实现实用的光抽运铯束频标的关键。
A portable laser system, continually working for very long period, is the key part in realization of an optically pumped cesium beam frequency standard.
本章分别介绍了激光器的模式理论、速率方程的理论、泵浦光和振荡光的空间分布以及对单频检测装置。
This chapter introduced the theory of laser mode, the rate equation theory, the spatial distribution of the pump laser and the oscillating laser and the single frequency detection device.
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.
讨论了系统性能对消光比劣化的敏感程度问题，并给出了评价方法，并据此对跳频系统和直接序列系统进行了比较。
Sensitivity of system performance to extinction ratio degradation and its evaluation were studied. Based on these analyses, the sensitivity of FFH-OCDMA system was compared to that of DS-OCDMA system.
独特的光学设计，无光污染、无眩光，光场分布均匀、无频闪。
Unique optical design: even light distribution, no dizzy light, no light pollution and no frequent.
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.
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.
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