ALKALI-METAL VAPOR CELL ATOMIC CLOCK SYSTEM

摘要

An alkali-metal vapor cell atomic clock system, comprising a first atomic vapor cell (140) and a second atomic vapor cell (150). A digital signal processor (170) outputs a first timing sequence to control a first laser signal, and the digital signal processor outputs a second timing sequence to control a second laser signal. Whereby, the first atomic vapor cell (140) and the second atomic vapor cell (150) can alternately lock a crystal oscillator (110). A Dick effect is reduced by alternately locking the crystal oscillator (110), so that the alkali-metal vapor cell atomic clock system can have more stable frequency output. Because the crystal oscillator (110) has low costs, the alkali-metal vapor cell atomic clock system has low costs and high stability.