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The optical lattice clock develops fast in recent years, and its stability and accuracy has already surpassed the microwave fountain clock and the optical clock based on ion trap. The mercury (Hg) lattice clock has the possibility to make a breakthrough in the limitation of blackbody radiation shift for strontium (Sr) and ytterbium (Yb) lattice clock, and reach the uncertainty in E-18 level at room...
We will report on the development of optical lattice clocks at LNE-SYRTE. Two strontium and a mercury optical lattice clocks were developed over more than a decade. We will give and overview of this work, emphasizing several unique features of the clocks. We will also describe application of these clocks to fundamental physics tests and as well as work relevant to a possible redefinition of the SI...
A circuit for on-chip measurement of long-term jitter, period jitter, and clock skew, is demonstrated. The circuit uses a single latch and a voltage-controlled delay element, and is evaluated in a stand-alone pad frame. Excellent reproduction of jitter measured by oscilloscope is shown. Measured jitter resolution is 1 ps or better. The circuit is also incorporated into a 2 GHz clock distribution network...
All optical demultiplexing of a 160 Gbit/s optical time domain multiplexed signal using a co-propagating 10 GHz optical clock as control signal into a nonlinear optical loop mirror is demonstrated.
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