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We report a turnkey timing distribution system able to serve multiple remote optical and microwave sources. The system exhibits only 0.3-fs timing jitter at the outputs of stabilized fiber links.
We present a powerful jitter analysis method for timing distribution systems based on feedback flow between setup elements. Our comprehensive feedback model yields excellent agreement with the experimental results and identifies seven uncorrelated noise sources.
We describe two different schemes for residual phase noise measurement of a dual-link optical-microwave timing system. The lengths of the fiber links are 1.2 km and 3.5 km. The residual single-sideband (SSB) phase noise of 10.833 GHz local oscillators lays below −135 dBc at 10 kHz offset. The RMS jitter integrated from 1 Hz to 10 MHz does not exceed 3 fs.
To observe electronic dynamics in atoms, molecules, and condensed matter taking place on an attosecond time scale, next-generation photon science facilities like X-ray free-electron lasers and intense laser beamlines require system-wide attosecond-level synchronization of dozens of optical and microwave signals up to kilometer distances. Here, we present for the first time a timing synchronization...
We report a synchronous multi-color mode-locked laser network over 4.7-km distance. Output of two remotely synchronized lasers shows only 0.6-fs RMS drift over 40 hours reaching 20th decimal uncertainty in less than 10000-s averaging time.
The complete spatiotemporal dynamics in an octave-spanning oscillator is captured to further optimize its transform-limited pulse duration and beam profile for simultaneous short pulse generation and CEP locking.
We demonstrate a high precision microwave network over stabilized multi-kilometer fiber links. Relative phase jitter (>1Hz) and drift (<1Hz) between two remotely synchronized 10.83-GHz microwave sources are 77.9 and 119.6 μrad, respectively, over 2.5-hour operation.
A novel 4.7-km laser-microwave network continuously operating with attosecond precision over more than two days is demonstrated. This work enables clocking of future X-ray photon-science facilities now also with attosecond temporal resolution.
We report recent progress made in a synchronous multi-color mode-locked laser network over 4.7-km distance. Output of two remotely synchronized lasers shows only 0.6-fs RMS drift over 40 hours reaching 20th decimal uncertainty in less than 10000-s averaging time. This work will enable sub-fs synchronization of new generation photon science facilities and allow km-scale optical clock comparison with...
Long-term stable timing transfer over a multi-km fiber network is reported. Output of two independently timing-stabilized fiber links shows only 0.73 femtoseconds RMS total jitter over 35 hours corresponding to 10−21 relative link stability.
Long-term stable timing distribution over a 3.5-km polarization maintaining (PM) fiber link using balanced optical cross-correlators (BOC) for link stabilization and optical-to-optical synchronization is demonstrated. Link operation over 80 hours showed only 0.36 fs RMS timing jitter and drift integrated from 100 μHz to 1 MHz, and remote laser synchronization over 36 hours showed a residual timing...
We present recent progress made in optical, high-precision, long-term stable timing distribution systems for synchronization of next generation X-ray free-electron lasers. Timing jitter characterization of the optical master oscillator shows less than 170 as integrated jitter for frequencies above 10 kHz, limited by the detection noise floor. Timing stabilization of a 3.5-km polarization maintaining...
Long-term stable remote laser synchronization over a 3.5 km long polarization maintaining fiber link is demonstrated. The residual rms-timing jitter and drift over 36-hour operation is 0.96 fs integrated from 100 µHz to 1 MHz.
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