Abstract
We report on the development of a new compact strontium optical lattice clock employing a 2D-MOT as cold atomic source. The clock system reliability is currently studied using the most abundant isotope, the bosonic <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">88</sup> Sr. More than 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">5</sup> 88Sr atoms are loaded in the optical lattice at 813 nm at temperatures of few microKelvin. All the needed optical frequencies are stabilized to a zero-CTE high finesse optical resonator, and can be operated without frequency adjustments for weeks. The system shows the advantage of optical guiding and switching the atomic source to the clock spectroscopy region by demonstrating more than 17 s lifetime. First spectroscopy tests on the clock transition on <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">88</sup> Sr atoms has been performed by magnetic-field induced spectroscopy.
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