| Zugriffsnummer | 36713 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Phase analysis for frequency standards in the microwave and optical domains |
| Autor(in); Institution |
Kazda, Michael; 4.4, Zeit und Frequenz, PTB-Braunschweig
Gerginov, Vladislav; 4.4, Zeit und Frequenz, PTB-Braunschweig
Huntemann, Nils; 4.4, Zeit und Frequenz, PTB-Braunschweig
Lipphardt, Burghard; 4.4, Zeit und Frequenz, PTB-Braunschweig
Weyers, Stefan; 4.4, Zeit und Frequenz, PTB-Braunschweig
|
| Quelle/Jahr | IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control: 63 (2016), 7, 970 - 974 |
| ISSN | 0885-3010 (PRINT) ; 1525-8955 (ONLINE) |
| DOI | |
| Verlag | New York, NY: IEEE |
| Freie Schlagworte | atomic foutain clocks ; optical frequency standards ; high-precision spectroscopy ; acousto-optical modulation ; clocks ; instrumentation and measurement ; phase measurement ; time measurement |
| Zusammenfassung | Coherent manipulation of atomic states is a key concept in high-precision spectroscopy and used in atomic fountain clocks and a number of optical frequency standards. Operation of these standards can involve a number of cyclic switching processes, which may induce cycle-synchronous phase excursions of the interrogation signal and thus lead to shifts in the output of the frequency standard. We have built a field-programmable gate array (FPGA)-based phase analyzer to investigate these effects and conducted measurements on two kinds of frequency standards. For the caesium fountains PTB-CSF1 and PTB-CSF2, we were able to exclude phase variations of the microwave source at the level of a few microradians, corresponding to relative frequency shifts of less than 10-16. In the optical domain, we investigated phase variations in PTB's Yb+ optical frequency standard and made detailed measurements of acousto-optic modulator (AOM) chirps and their scaling with duty cycle and driving power. We ascertained that cycle-synchronous as well as long-term phase excursion do not cause frequency shifts larger than 10-18. |
Zitierung
Kazda, M., Gerginov, V., Huntemann, N., Lipphardt, B., & Weyers, S. (2016). Phase analysis for frequency standards in the microwave and optical domains. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 63(7), 970–974. https://doi.org/10.1109/tuffc.2016.2515759