Demonstration of a time scale based on a stable optical carrier
| Autor: | John Robinson, Thomas Legero, Dhruv Kedar, Jian Yao, Fritz Riehle, Judah Levine, Tara M. Fortier, Holly Leopardi, Tobias Bothwell, William R. Milner, Uwe Sterr, Jeff Sherman, Eric Oelker, D. G. Matei, Jun Ye, Colin Kennedy |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Silicon Atomic Physics (physics.atom-ph) Optical engineering FOS: Physical sciences General Physics and Astronomy chemistry.chemical_element 01 natural sciences Computational physics Physics - Atomic Physics chemistry Optical Carrier transmission rates Optical frequencies Lattice (order) 0103 physical sciences Time error 010306 general physics Microwave Optics (physics.optics) Physics - Optics |
| ISSN: | 0031-9007 |
| Popis: | We demonstrate a time scale based on a phase stable optical carrier that accumulates an estimated time error of $48\pm94$ ps over 34 days of operation. This all-optical time scale is formed with a cryogenic silicon cavity exhibiting improved long-term stability and an accurate $^{87}$Sr lattice clock. We show that this new time scale architecture outperforms existing microwave time scales, even when they are steered to optical frequency standards. Our analysis indicates that this time scale is capable of reaching a stability below $1\times10^{-17}$ after a few months of averaging, making timekeeping at the $10^{-18}$ level a realistic prospect. 13 pages, 12 Figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|