Latest Breaking News On - Boulder atomic clock optical network - Page 1 : comparemela.com
The combination of optical time transfer and optical clocks opens up the possibility of large-scale free-space networks that connect both ground-based optical clocks and future space-based optical clocks. Such networks promise better tests of general relativity1–3, dark-matter searches4 and gravitational-wave detection5. The ability to connect optical clocks to a distant satellite could enable space-based very long baseline interferometry6,7, advanced satellite navigation8, clock-based geodesy2,9,10 and thousandfold improvements in intercontinental time dissemination11,12. Thus far, only optical clocks have pushed towards quantum-limited performance13. By contrast, optical time transfer has not operated at the analogous quantum limit set by the number of received photons. Here we demonstrate time transfer with near quantum-limited acquisition and timing at 10,000 times lower received power than previous approaches14–24. Over 300 km between mountaintops in Hawaii with
International-conference-on-space-optical-systemsMorrisInternational-society-for-opticsBoulder-atomic-clock-optical-networkExpressYoungSpringer-handbook-of-optical-networksInternational-conference-on-space-opticsSpace-resEvent-horizon-telescopeEvent-horizon-explorer