1. Characterization of a 450 km baseline GPS carrier-phase link using an optical fiber link.
- Author
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Stefan Droste, Christian Grebing, Julia Leute, Sebastian M F Raupach, Arthur Matveev, Theodor W Hänsch, Andreas Bauch, Ronald Holzwarth, and Gesine Grosche
- Subjects
GLOBAL Positioning System ,OPTICAL fiber communication ,FIBER optic cables ,OPTICAL fiber networks ,OPTICAL fiber polarization - Abstract
A global positioning system (GPS) carrier-phase frequency transfer link along a baseline of 450 km has been established and is characterized by comparing it to a phase-stabilized optical fiber link of 920 km length, established between the two endpoints, the Max-Planck-Institut für Quantenoptik in Garching and the Physikalisch-Technische Bundesanstalt in Braunschweig. The characterization is accomplished by comparing two active hydrogen masers operated at both institutes. The masers serve as local oscillators and cancel out when the double differences are calculated, such that they do not constitute a limitation for the GPS link characterization. We achieve a frequency instability of in 30 s and for long averaging times. Frequency comparison results obtained via both links show no deviation larger than the statistical uncertainty of . These results can also be interpreted as a successful cross-check of the measurement uncertainty of a truly remote end fiber link. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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