Sub-100 attoseconds optics-to-microwave synchronization
Optics
2015-03-13 v1 Instrumentation and Detectors
Abstract
We use two fiber-based femtosecond frequency combs and a low-noise carrier suppression phase detection system to characterize the optical to microwave synchronization achievable with such frequency divider systems. By applying specific noise reduction strategies, a residual phase noise as low as -120 dBc/Hz at 1 Hz offset frequency from a 11.55 GHz carrier is measured. The fractional frequency instability from a single optical-to-frequency divider is 1.1E-16 at 1 s averaging down to below 2E-19 after only 1000 s. The corresponding rms time deviation is lower than 100 attoseconds up to 1000 s averaging duration.
Cite
@article{arxiv.1003.2799,
title = {Sub-100 attoseconds optics-to-microwave synchronization},
author = {W. Zhang and Z. Xu and M. Lours and R. Boudot and Y. Kersale and G. Santarelli and Y. Le Coq},
journal= {arXiv preprint arXiv:1003.2799},
year = {2015}
}
Comments
4 pages, 3 figures