| Autor: |
Martha I. Bodine, Jennifer L. Ellis, William C. Swann, Sarah A. Stevenson, Jean-Daniel Deschênes, Emily D. Hannah, Paritosh Manurkar, Nathan R. Newbury, Laura C. Sinclair |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
APL Photonics, Vol 5, Iss 7, Pp 076113-076113-8 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2378-0967 |
| DOI: |
10.1063/5.0010704 |
| Popis: |
We demonstrate frequency-comb-based optical two-way time-frequency transfer across a three-node clock network. A fielded, bidirectional relay node connects laboratory-based master and end nodes, allowing the network to span 28 km of turbulent outdoor air while keeping optical transmit powers below 5 mW. Despite the comparatively high instability of the free-running local oscillator at the relay node, the network transfers frequency with fractional precision below 10−18 at averaging times above 200 s and transfers time with a time deviation below 1 fs at averaging times between 1 s and 1 h. The successful operation of this network represents a promising step toward the operation of future free-space networks of optical atomic clocks. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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