Atomic oscillator
AssigneeNEC Corporation
InventorKenta MATSUMOTO
Life of this patent
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Abstract
An atomic oscillator according to the present disclosure includes: two gas cells in which alkali metal atoms are encapsulated and to which bias magnetic fields are applied in opposite directions from each other; a light generating unit configured to apply irradiation light including at least two different frequency components to the both two gas cells; a light detecting unit configured to detect transmitted light passed through the two gas cells, respectively; and a control unit configured to determine a resonance frequency according to detection signals corresponding to the transmitted light detected from the two gas cells, respectively, and also control an oscillation frequency of an oscillation signal to be externally output according to the determined resonance frequency.
Claims14
An atomic oscillator comprising:
- two gas cells in which alkali metal atoms are encapsulated and to which bias magnetic fields are applied in opposite directions from each other;
- a light generating unit configured to apply irradiation light including at least two different frequency components to the both two gas cells;
- a light detecting unit configured to detect transmitted light passed through the two gas cells, respectively;
- and
- a control unit configured to determine a resonance frequency according to detection signals corresponding to the transmitted light detected from the two gas cells, respectively, and also control an oscillation frequency of an oscillation signal to be externally output according to the determined resonance frequency.
A control method by an atomic oscillator, the atomic oscillator including:
- two gas cells in which alkali metal atoms are encapsulated and to which bias magnetic fields are applied in opposite directions from each other;
- a light generating unit configured to apply irradiation light including at least two different frequency components to both the two gas cells;
- and
- a light detecting unit configured to detect transmitted light passed through the two gas cells, respectively, the control method comprising:
- applying bias magnetic fields in opposite directions from each other to the two gas cells;
- and
- determining a resonance frequency according to detection signals corresponding to the transmitted light detected from the two gas cells, respectively, and also controlling an oscillation frequency of an oscillation signal to be externally output according to the determined resonance frequency.
Dependencies are inferred from the claim text.