Apparatus and method for vapor cell atomic frequency reference having improved frequency stability
A technology of vapor pool and chip-level atomic clock, which is applied in the direction of instruments using atomic clocks, stable output, electrical components, etc., and can solve problems such as low frequency reference accuracy
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Embodiment 1
[0073]Embodiment 1 includes a chip-scale atomic clock (CSAC) comprising: a thermostabilized physical system including a vapor cell and a magnetic field coil enclosed in a magnetic shield; and a thermostabilized physical system electrically coupled to the thermostabilized physical system. stabilize electronic circuits.
[0074] The CSAC of Embodiment 1, further comprising a non-thermostable electronic circuit electrically coupled to at least one of the thermostable physical system and the thermostable electronic circuit.
[0075] The CSAC of embodiment 2, wherein the non-thermostatic electronic circuit includes at least one of a controller circuit and a power regulation circuit.
Embodiment 4
[0076] Embodiment 4 includes the CSAC of Embodiment 3, wherein the non-thermostatic electronic circuit further includes at least one of: a crystal oscillator, a phase locked loop, at least one heater current control circuit, and at least one coil current control circuit .
Embodiment 5
[0077] Embodiment 5 includes the CSAC of Embodiment 4, wherein the non-thermostatic electronic circuit further includes at least one of: at least one digital-to-analog converter and at least one heater.
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