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Measurements and Error Sources in Time Transfer Using Asynchronous Fiber Network

Sven-Christian Ebenhag (Institutionen för mikroteknologi och nanovetenskap, Fotonik) ; Per Olof Hedekvist (Institutionen för mikroteknologi och nanovetenskap, Fotonik) ; Per O. J. Jarlemark ; T. Ragne Emardson ; R. T. Kenneth Jaldehag ; Carsten Rieck (Institutionen för radio- och rymdvetenskap, Rymdgeodesi och geodynamik) ; Peter Löthberg
IEEE Transactions on Instrumentation and Measurement (0018-9456). Vol. 59 (2010), 7, p. 1918-1924 .
[Artikel, refereegranskad vetenskaplig]

We have performed time transfer experiments based on passive listening in fiber optical networks using Packet over synchronous optical networking (SONET)/synchronous digital hierarchy(SDH). The experiments have been performed with different complexity and over different distances. For assessment of the results, we have used a GPS link based on carrier-phase observations. On a 560-km link, precision that is relative to the GPS link of < 1 ns has been obtained over several months. In this paper, we describe and quantify the different error sources influencing the fiber time transfer measurements. We show that the temperature dependence of the optical fiber is the major contribution to the error budget, and, thus, reducing this effect should be the best way of improving the results.

Nyckelord: Fiber link; Fiber network; GPS carrier phase; Synchronous optical networking (SONET)/synchronous digital hierarchy (SDH); Time transfer; Two-way

Denna post skapades 2010-02-26. Senast ändrad 2017-08-17.
CPL Pubid: 115253


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Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Fotonik
Institutionen för radio- och rymdvetenskap, Rymdgeodesi och geodynamik (2005-2010)


Elektroteknik och elektronik

Chalmers infrastruktur

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