Abstract
Recent progress are reported on a compact cesium cell atomic frequency standard based on pulsed coherent population trapping. The Dick effect has been modelized and measured. The short term frequency stability has been improved to 3.2×10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">−13</sup> τ <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">−1/2</sup> . Important steps have been taken toward the understanding of the impact of laser power fluctuations on the mid-term stability, currently limited at 3.10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">−14</sup> at 200s.
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