Atomic oscillator
AssigneeNEC Corporation
InventorKenta Matsumoto
Life of this patent
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Abstract
An atomic oscillator of the present disclosure includes: a gas cell in which alkali metal atoms are encapsulated; a light generator that irradiates the gas cell with irradiation light having at least two different frequency components; a light detector that detects transmission light transmitted by the gas cell; and a controller that determines the resonance frequency of the irradiation light based on the light amount of the detected transmission light, and controls an oscillation frequency based on the determined resonance frequency. The controller determines the state of the atomic oscillator based on a control signal output when controlling the oscillation frequency.
Claims10
An atomic oscillator comprising:
- a gas cell in which alkali metal atoms are encapsulated;
- a light generator that irradiates the gas cell with irradiation light having at least two different frequency components;
- a light detector that detects transmission light transmitted by the gas cell;
- and
- a controller that determines a resonance frequency of the irradiation light based on a light amount of the detected transmission light and controls an oscillation frequency based on the determined resonance frequency,
- wherein the controller determines a state of the atomic oscillator based on a control signal output when controlling the oscillation frequency, and
- wherein the controller determines the state of the atomic oscillator based on a control voltage to an oscillation device that oscillates in response to a voltage applied thereto, the control voltage being output when controlling the oscillation frequency.
An atomic oscillator comprising:
- a gas cell in which alkali metal atoms are encapsulated;
- a light generator that irradiates the gas cell with irradiation light having at least two different frequency components;
- a light detector that detects transmission light transmitted by the gas cell;
- and
- a controller that determines a resonance frequency of the irradiation light based on a light amount of the detected transmission light and controls an oscillation frequency based on the determined resonance frequency,
- wherein the controller determines a state of the atomic oscillator based on a control signal output when controlling the oscillation frequency, and
- wherein the controller determines the state of the atomic oscillator in accordance with change of a value based on the control signal.
A control method for controlling an atomic oscillator, the atomic oscillator including:
- a gas cell in which alkali metal atoms are encapsulated;
- a light generator that irradiates the gas cell with irradiation light having at least two different frequency components;
- a light detector that detects transmission light transmitted by the gas cell;
- and a controller that determines a resonance frequency of the irradiation light based on a light amount of the detected transmission light and controls an oscillation frequency based on the determined resonance frequency,
- the control method comprising:
- determining a state of the atomic oscillator based on a control signal output when controlling the oscillation frequency;
- and
- determining the state of the atomic oscillator based on a control voltage to an oscillation device that oscillates in response to a voltage applied thereto, the control voltage being output when controlling the oscillation frequency.
Dependencies are inferred from the claim text.