A VLBI experiment using a remote atomic clock via a coherent fibre link

被引：102

作者：

Clivati, Cecilia ^{[1
]}

Ambrosini, Roberto ^{[2
]}

Artz, Thomas ^{[3
]}

Bertarini, Alessandra ^{[3
,4
]}

Bortolotti, Claudio ^{[2
]}

Frittelli, Matteo ^{[1
]}

Levi, Filippo ^{[1
]}

Mura, Alberto ^{[1
]}

Maccaferri, Giuseppe ^{[2
]}

Nanni, Mauro ^{[2
]}

Negusini, Monia ^{[2
]}

Perini, Federico ^{[2
]}

Roma, Mauro ^{[2
]}

Stagni, Matteo ^{[2
]}

Zucco, Massimo ^{[1
]}

Calonico, Davide ^{[1
]}

机构：

[1] INRIM, Ist Nazl Ric Metrol, Str Cacce 91, I-10135 Turin, Italy

[2] Ist Nazl Astrofis, Ist Radioastron, Bologna, Italy

[3] Rhein Friedrich Wilhelms Univ Bonn, Inst Geodesie & Geoinformat, Bonn, Germany

[4] Max Planck Inst Radio Astron, Bonn, Germany

来源：

SCIENTIFIC REPORTS | 2017年 / 7卷

基金：

欧盟地平线“2020”;

关键词：

FREQUENCY; SYNCHRONIZATION; TIME;

D O I：

10.1038/srep40992

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We describe a VLBI experiment in which, for the first time, the clock reference is delivered from a National Metrology Institute to a radio telescope using a coherent fibre link 550 km long. The experiment consisted of a 24-hours long geodetic campaign, performed by a network of European telescopes; in one of those (Medicina, Italy) the local clock was alternated with a signal generated from an optical comb slaved to a fibre-disseminated optical signal. The quality of the results obtained with this facility and with the local clock is similar: interferometric fringes were detected throughout the whole 24-hours period and it was possible to obtain a solution whose residuals are comparable to those obtained with the local clock. These results encourage further investigation of the ultimate VLBI performances achievable using fibre dissemination at the highest precision of state-of-the-art atomic clocks.

引用

页数：8

共 24 条

[1] Observation of Gravitational Waves from a Binary Black Hole Merger [J].

Abbott, B. P. ;

Abbott, R. ;

Abbott, T. D. ;

Abernathy, M. R. ;

Acernese, F. ;

Ackley, K. ;

Adams, C. ;

Adams, T. ;

Addesso, P. ;

Adhikari, R. X. ;

Adya, V. B. ;

Affeldt, C. ;

Agathos, M. ;

Agatsuma, K. ;

Aggarwal, N. ;

Aguiar, O. D. ;

Aiello, L. ;

Ain, A. ;

Ajith, P. ;

Allen, B. ;

Allocca, A. ;

Altin, P. A. ;

Anderson, S. B. ;

Anderson, W. G. ;

Arai, K. ;

Arain, M. A. ;

Araya, M. C. ;

Arceneaux, C. C. ;

Areeda, J. S. ;

Arnaud, N. ;

Arun, K. G. ;

Ascenzi, S. ;

Ashton, G. ;

Ast, M. ;

Aston, S. M. ;

Astone, P. ;

Aufmuth, P. ;

Aulbert, C. ;

Babak, S. ;

Bacon, P. ;

Bader, M. K. M. ;

Baker, P. T. ;

Baldaccini, F. ;

Ballardin, G. ;

Ballmer, S. W. ;

Barayoga, J. C. ;

Barclay, S. E. ;

Barish, B. C. ;

Barker, D. ;

Barone, F. .

PHYSICAL REVIEW LETTERS, 2016, 116 (06)

[2]

[Anonymous], HAYSTACK OBSERVATORY

[3]

[Anonymous], IVS DATA INPUT ITRF2

[4]

[Anonymous], MARK 5 VLBI ANAL SOF

[5]

[Anonymous], GLOBAL MM VLBI ARRAY

[6]

[Anonymous], VLBI2010 CURRENT FUT

[7]

[Anonymous], P 2016 EUR FREQ TIM

[8]

Bolotin S., 2014, IVS 2014 GEN M P VGO, P253

[9] High-accuracy coherent optical frequency transfer over a doubled 642-km fiber link [J].

Calonico, D. ;

Bertacco, E. K. ;

Calosso, C. E. ;

Clivati, C. ;

Costanzo, G. A. ;

Frittelli, M. ;

Godone, A. ;

Mura, A. ;

Poli, N. ;

Sutyrin, D. V. ;

Tino, G. M. ;

Zucco, M. E. ;

Levi, F. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2014, 117 (03) :979-986

[10] Precision timing control for radioastronomy - Maintaining femtosecond synchronization in the atacama large millimeter array [J].

Cliche, JF ;

Shillue, B .

IEEE CONTROL SYSTEMS MAGAZINE, 2006, 26 (01) :19-26

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