2013/08/30 by S. M. F. Raupach, Raupach, S. M. F., Gesine Grosche +2
Engineering · Mathematics · Physics and Astronomy · #Advanced Fiber Laser Technologies #Advanced Frequency and Time Standards #Allan variance #Automatic frequency control #Chirp #Classical mechanics #Computer science #Electrical engineering #Engineering #FOS: Physical sciences #Frequency deviation #Geophysics and Sensor Technology #Instability #Laser #Mathematics #Mechanics #Optics #Optics (physics.optics) #Phase (matter) #Physics #Simultaneity #Standard deviation #Statistics #Telecommunications #Time transfer #Transfer (computing) #Transfer function #physics.optics
paper · pdf · doi:10.48550/arxiv.1308.6725
openalex publication_date 2013/08/30 · arxiv created 2014/03/03 · arxiv updated 2014/03/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We demonstrate combined high-fidelity long-haul transfer of a linearly chirped, optical frequency and time transfer. In a proof-of-principle experiment we transfer an optical frequency with a linear chirp of around 238 kHz/s via a phase-stabilized underground fiber link of 150 km. We find a fractional frequency transfer instability (Allan deviation, 18000 s averaging time) and simultaneity of the chirped frequency between both ends on a level of around 2×10-19, where the active phase stabilization suppresses cumulative, symmetrical effects. In a second step, we demonstrate the remote measurement of synchronisation taking advantage of chirped-frequency transfer. The uncertainty of time transfer here is around 500 ps.