DocumentCode
1455468
Title
Two-way time and frequency transfer using optical fibers
Author
Jefferts, Steven R. ; Weiss, Marc A. ; Levine, J. ; Dilla, S. ; Bell, E.W. ; Parker, Thomas E.
Author_Institution
Time & Frequency Div., Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Volume
46
Issue
2
fYear
1997
fDate
4/1/1997 12:00:00 AM
Firstpage
209
Lastpage
211
Abstract
The National Institute of Standards and Technology (NIST) has built a two-way time-transfer device which uses any currently unused byte in the SONET (SDH) overhead to effect time transfer. The hardware shows stability which allows time transfer over short distances (km) with stabilities less than 10 ps. Time transfer over distances that require additional amplifiers in the fiber have not yet been investigated. Accuracy at the same level should also be possible
Keywords
SONET; absolute stability; delays; measurement standards; optical fibre communication; synchronous digital hierarchy; time measurement; 155.52 MHz; NIST; SDH optical link; SONET; SONET/SDH OC-3 link; accuracy; delay stability; hardware stability; optical fibers; two-way frequency transfer; two-way time transfer; Clocks; Delay; Frequency; Hardware; NIST; Optical fiber devices; Optical fibers; SONET; Stability; Synchronous digital hierarchy;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/19.571814
Filename
571814
Link To Document