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- Optical Frequency Standard and Realization of Optical Clock 光学频率标准与光钟的实现
- History, present situation and future of optical frequency standard and optical frequency measurements 光频标和光频测量研究的历史、现状和未来
- optical frequency standards 光频标
- optical frequency standard 光频标
- Recently, laser frequency standards have developed rapidly. 近年来,激光频标得到了迅速发展。
- Passively mode-locked fiber laser and the application in optical frequency metrology were introduced. 摘要本文介绍被动锁模光纤激光的架构,以及在光频量测的应用。
- A digital servo system for rubidium frequency standards was designed with microcontroller unit,ADC and DAC. 分析了铷频标内锁频环路相敏检波基本原理和数字伺服的基本方法。
- Two additional features of the pulses emitted by mode-locked lasers are keys to the development of optical frequency combs. 锁模雷射所放出的脉冲另有两个特徵,成为发展光频梳的关键。
- The uncertainty of the Cs Atomic Frequency Standard System is evaluated as well as the result of measurement of a nanosecond universal counter. 对铯原子频率标准装置不确定度和纳秒通用计数器测量结果的不确定度进行评定。
- Jun Ye, Steven Cundiff and John Hall bring different backgrounds to their collaboration on developing and applying femtosecond optical frequency combs. 叶军、康帝夫以及霍尔各有不同的背景,但是一起合作发展及应用飞秒光频梳。
- Overview of the different kinds of time and frequency standards and measurement services that are available, through NIST, other NMIs, and the private sector. 概述目前可用的美国NIST、各国国家计量院和私有的各种时间频率标准、测量设备。
- Steven Cundiff, Jun Ye and John Hall bring different backgrounds to their collaboration on developing and applying femtosecond optical frequency combs. 康帝夫、叶军以及霍尔各有不同的背景,但是一起合作发展及应用飞秒光频梳。
- Frequency synthersizer is one of the important part of the passive small type Rb frequency standard. 频率综合器是被动式小型铷原子频标的关键部件之一。
- John Hall, Steven Cundiff and Jun Ye bring different backgrounds to their collaboration on developing and applying femtosecond optical frequency combs. 霍尔、康帝夫以及叶军各有不同的背景,但是一起合作发展及应用飞秒光频梳。
- Indicated the good result of the long-term operation of the optically pumped cesium beam frequency standard in China. 强调了中国光抽运铯原子束频标经过长期连续工作所取得的优秀成果。
- One of the major factors which effect the accuracy of optically pumped cesium frequency standards is caused by microwave leakages. 摘要微波泄漏是影响光抽运铯原子钟准确度的主要因素之一。
- The microcontroller then sets the frequency driving AOM to let the shifted optical frequency to jump alternatively to either side of the desired saturated absorption peak. 单片机控制AOM在吸收峰左右跳频得到鉴频信号,经数字PID计算反馈控制激光频率,实现了无调制稳频。
- Meanwhile, we take some improvement measure in order to improve the stability about rubidium atomic frequency standard. 同时通过定量分析对电路实现提出了一系列优选方案,从而使铷原子频标的性能得到改善。
- The optical temporal and the optical frequency holograph are introduced in this paper, emphasis on the principle of the optical frequency holograph, and its application. 介绍了光学频域全息和时域全息的形成原理,并对光学频域全息在光纤通信及图像传输中的应用作了简要介绍。
- Frequency parameters are some of the key technical aspects in prototyping an optical fiber sensor system based on power modulated optical frequency domain Raman reflectometry. 研究了功率调制型光频域反射技术空间采样函数的基本特征,得到了频域测量参量对测量距离和空间分辨率的基本限制;