Latest achievements on the pulsed CPT clock

We report here the performance obtained with a laboratory compact caesium clock based on coherent population trapping (CPT). The clock is working with two orthogonal linear polarizations made by two phase-locked continuous lasers tuned to 895 nm and separated by 9192 MHz. Since the Local Oscillator (LO) noise and the laser relative intensity noise (RIN) are the two main noise source contributions important effort has been done to reduce their contributions and therefore improve the short-term frequency stability at the level of about 2.3×10
^-13
at 1 s. We present in this paper the results of these studies.