2016 IEEE International Frequency Control Symposium (IFCS)最新文献

Implementation of an optical fiber frequency distribution via commercial DWDM 通过商用DWDM的光纤频率分配的实现

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-09-12 DOI: 10.1109/FCS.2016.7563586

S. Ebenhag, M. Zelan, P. Hedekvist, M. Karlsson

{"title":"Implementation of an optical fiber frequency distribution via commercial DWDM","authors":"S. Ebenhag, M. Zelan, P. Hedekvist, M. Karlsson","doi":"10.1109/FCS.2016.7563586","DOIUrl":"https://doi.org/10.1109/FCS.2016.7563586","url":null,"abstract":"The rapid development in communication infrastructure over the past decades entails an increasing dependence on time and frequency, as well as its redundant distribution. This places demands not only on already existing distribution methods, but also on the development of new ones to meet future needs. To meet these demands several research groups are working on high performance fiber-based frequency transfer techniques. The best achieved performance so far is the techniques using a single bi-directional fiber connection, with customized bi-directional optical amplifiers [1]. The objective of this project is to develop a method that is compatible with data communication in DWDM-systems, i.e. using the existing infrastructure, as well as to be complementary technique for time and frequency distribution. Even though it is likely to have worse performance than the bi-directional system in terms of frequency stability, it will allow for the impassable obligation to follow the deployed structure of telecom networks. The establishment and early results of the non-stabilized link has been previously presented [2, 3]. The ongoing evaluation and improvement will be aimed at finding relevant performance specifications for a connection using this technique. The work presented here is the most recent results of the frequency transfer and discusses the future plans for the fiber connection, including the added time transfer method. If proven successful, the long-term objective is to establish a distribution network for optical frequency references in Sweden.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122983110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Compact photonic oscillator employing FP resonator based on travelling-waveguide-type EO modulator 基于行波导型EO调制器的FP谐振腔紧凑型光子振荡器

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-09-12 DOI: 10.1109/FCS.2016.7546812

Jian Dai, Gejun Xu, Xingyuan Xu, Yitang Dai, Feifei Yin, Yue Zhou, Jianqiang Li, Kun Xu

引用次数: 0

The influence of antenna direction on TWSTFT 天线方向对TWSTFT的影响

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-09-12 DOI: 10.1109/FCS.2016.7546831

Yuejuan Jing, Wei Guang, Huijie Song, S. Dong, Hong Zhang, Huanxin Li, Haibo Yuan, Z. Shuhong, Jihai Zhang

{"title":"The influence of antenna direction on TWSTFT","authors":"Yuejuan Jing, Wei Guang, Huijie Song, S. Dong, Hong Zhang, Huanxin Li, Haibo Yuan, Z. Shuhong, Jihai Zhang","doi":"10.1109/FCS.2016.7546831","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546831","url":null,"abstract":"The two-way satellite time and frequency transfer (TWSTFT) is the most accurate time synchronization method currently. Antenna is an indispensable element and plays an important role in the earth station of TWSTFT, its direction has a definite effect on the signal quality and performance in TWSTFT. In this paper, some preliminary test results are introduced by using the new TWSTFT system of Ku band with a 2.4 meters tracking antenna in National Time Service Center (NTSC). Through the experiment, we have obtained some data according to different antenna direction, by the analysis we can know: the change of azimuth angle is more sensitive than elevation angle during receiving the signal; in theory, the biggest deviation of azimuth angle should be symmetrical in both sides and asymmetric actually, the deviation of elevation angle is also. The deviation is the angle apart from the pointing of antenna at which receiving signal is the best. It can offer a powerful reference for antenna pointing deviation in earth station of TWSTFT and provide theoretical foundation for the antenna direction and high precision time transfer and synchronization.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115919093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An ovenized CMOS-MEMS oscillator with isothermal resonator and sub-mW heating power 具有等温谐振腔和亚毫瓦加热功率的烤箱化CMOS-MEMS振荡器

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546792

Chun-You Liu, Ming-Huang Li, Chao-Yu Chen, Sheng-Shian Li

引用次数: 4

Detailed problems in cesium active optical clock 铯有源光钟的具体问题

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546773

D. Pan, Xiaobo Xue, Jingbiao Chen

引用次数: 3

Aluminum Nitride cross-sectional Lamé mode resonators with 260 MHz lithographic tuning capability and high kt2 > 4% 具有260 MHz光刻调谐能力和高kt2 > 4%的氮化铝横截面lam<s:1>模式谐振器

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7563549

Guofeng Chen, C. Cassella, Z. Qian, G. Hummel, M. Rinaldi

引用次数: 8

New radio-frequency resonators based on periodically poled lithium niobate thin film and ridge structures 基于周期性极化铌酸锂薄膜和脊结构的新型射频谐振器

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546793

F. Bassignot, G. Haye, F. Henrot, L. Gauthier-Manuel, B. Guichardaz, H. Maillotte, S. Ballandras, E. Courjon, J. Lesage

{"title":"New radio-frequency resonators based on periodically poled lithium niobate thin film and ridge structures","authors":"F. Bassignot, G. Haye, F. Henrot, L. Gauthier-Manuel, B. Guichardaz, H. Maillotte, S. Ballandras, E. Courjon, J. Lesage","doi":"10.1109/FCS.2016.7546793","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546793","url":null,"abstract":"In this paper, we present new results on the development of an original acoustic waveguides concept based on a Periodically Poled Lithium Niobate transducer. Periodically poled transducers have been investigated recently as an alternative to classical inter-digital transducers for the excitation and detection of guided acoustic waves. We expose here two different structures of RF resonators based on this concept: a “Silicon/Gold layer/PPLN thin film/Gold layer/Silicon” stack and a PPLN-ridge structure. Simulations, fabrication and experimental results of both resonators are presented. “Si/10 μm-thick PPLN/Si” and “PPLN-ridge (11 μm-wide and 250 μm-deep)” resonators with a poling period of 50 μm have been achieved. The experimental admittances of these devices have pointed out the existence of an isolated mode operating at frequencies near 110 MHz for the stack structure and near 160 MHz with an electromechanical coupling of about 19 % for the ridge structure. These results are in agreement with the finite and boundary elements simulations.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126038978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Passive temperature compensation method in nonlinear NEMS resonators based on the nonlinear duffing effect 基于非线性duffing效应的非线性NEMS谐振器无源温度补偿方法

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546800

G. Sobreviela, M. Riverola, A. Uranga, N. Barniol, E. Marigó, M. Soundara-Pandian

引用次数: 0

Mitigation of AO spurious modes in AlN MEMS resonators with SiO2 addendums 用SiO2附录抑制AlN MEMS谐振器中AO杂散模式

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7563550

A. Gao, Ruochen Lu, S. Gong

引用次数: 6

Thick aluminum nitride contour-mode resonators mitigate thermoelastic damping 厚氮化铝轮廓模谐振器减轻热弹性阻尼

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546790

C. Cassella, G. Piazza

引用次数: 4