Patent ID: 8314661
Filing Date: 2012-11-20
Classification: G04F,H03L

Abstract:
1. An atomic oscillator using an electromagnetically induced transparency phenomenon caused by irradiation of a resonant light pair to an alkali metal atom, comprising: a light source that generates a first light having a center frequency f a light detection unit that detects intensities of lights including the first light and the second light passing through the alkali metal atom; and a control unit that controls, based on a detection result of the light detection unit, to cause a first frequency difference between a first specified frequency component of the first light and a second specified frequency component of the second light to be equal to a third frequency corresponding to an energy difference between two ground levels of the alkali metal atom, wherein a second frequency difference between the center frequency f the first frequency difference is provided by selecting one of the following three combinations (1) through (3) of the first specified frequency and the second specified frequency: