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Quantum-limited optical time transfer for future geosynchronous links
Emily D. Caldwell, Jean-Daniel Deschenes, Jennifer Ellis +5
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 spa…
Femtosecond Optical Two-Way Time-Frequency Transfer in the Presence of Motion
Laura C. Sinclair, Hugo Bergeron, William C. Swann +5
Platform motion poses significant challenges to high-precision optical time and frequency transfer. We give a detailed description of these challenges and their solutions in comb-b…
Time Synchronization over a Free-Space Optical Communication Channel
Isaac Khader, Hugo Bergeron, Laura C. Sinclair +3
Free space optical (FSO) communication channels are typically used to transmit high-speed data between sites over the air. Here we repurpose an FSO digital communication system and…
Comparing optical oscillators across the air to milliradians in phase and in frequency
Laura C. Sinclair, Hugo Bergeron, William C. Swann +3
We demonstrate carrier-phase optical two-way time-frequency transfer (carrier-phase OTWTFT) through the two-way exchange of frequency comb pulses. Carrier-phase OTWTFT achieves fre…