This paper studies a miniature low power consumption laser-pumped atom vapour cell clock scheme.Pumping 87Rb with a vertical cavity surface emitting laser diode pump and locking the laser frequency on a Doppler-broadened spectral line,it records a 5×10 11τ 1/2(τ< 500 s) frequency stability with a table-top system in a primary experiment.The study reveals that the evaluated scheme is at the level of 2.7 watts power consumption,90 cm3 volume and 10 12τ 1/2 short-term frequency stability.
