Two-Way Time Transfer Through 2.4 GBit/s Optical SDH System

reportActive / Technical Report | Accession Number: ADA514699 | Open PDF

Abstract:

An experiment to transfer time and frequency over 2.488 Gbits SDH Synchronous Digital Hierarchy systems using 175-km commercial optical fibers has been set up by CRL and NTT. We confirm that the frequency stability of the time comparison data is 1012square root of tau at averaging times above 10 s. This equals that of the Cs frequency standard H5071A used in this experiment. The time comparison resolution is of the order of 10-11 s square root of time variance. The long-term stability of this system is expected to be better than 1 ns. The time comparison results of this experiment agree well the GPS common-view results.

Author(s):
Kihara, Masami ; Imaoka, Atsushi ; Imae, Michito ; Imamura, Kuniyasu
Author Organization(s):
NIPPON TELEGRAPH AND TELEPHONE CORP KANAGAWA (JAPAN) COMMUNICATION SCIENCE LABORATORIES
Descriptive Note:
Conference paper
Supplementary Note:
See also ADA418244. Annual Precise Time and Time Interval (PTTI) Systems and Applications Meeting (29th), Long Beach, CA, 2-4 Dec 1997
Pagination:
0009

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
X5
 Subject Terms
Joint Capability Areas:
JCA_6.1.1_Wired Transmission; JCA_6_Net Centric; JCA_6.1_Information Transport; JCA_1.2.7_Experimentation; JCA_8_Building Partnerships
Modernization Areas:
Space
Communities of Interest:
Space
Descriptor(s):
*OPTICAL EQUIPMENT, *TRANSFER, *FREQUENCY STANDARDS, *TIME, RESOLUTION, JAPAN, VARIATIONS, SQUARE ROOTS, COMPARISON, SYMPOSIA, STABILITY, FREQUENCY, CESIUM
Field(s)/Group(s):
Test Facilities, Equipment and Methods
Keyword(s):
*TIME TRANSFER, FOREIGN REPORTS
Report Date:
1997 Dec 01
Creation Date:
2010 Mar 10