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Journal Article

One-femtosecond, long-term stable remote laser synchronization over a 3.5-km fiber link

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Şafak,  Kemal
International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron;
Physics Department, University of Hamburg and the Hamburg Center for Ultrafast Imaging,;

External Resource

http://dx.doi.org/10.1364/OE.22.014904
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Citation

Xin, M., Şafak, K., Peng, M. Y., Callahan, P. T., & Kärtner, F. X. (2014). One-femtosecond, long-term stable remote laser synchronization over a 3.5-km fiber link. Optics Express, 22(12), 14904-14912. doi:10.1364/OE.22.014904.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-0CD6-C
Abstract
Long-term stable timing distribution over a 3.5-km polarization maintaining (PM) fiber link using balanced optical cross-correlators (BOC) for optical-to-optical synchronization is demonstrated. Remote laser synchronization over 40 hours showed a residual timing jitter and drift of 2.5 fs for the whole locking period and only 1.1 fs integrated from 100 μHz to 1 MHz. This result corresponds to the lowest jitter and drift achieved to date for a multi-km fiber link and remote timing synchronization operating continuously over multiple days.