Highly stable chip-scale atomic beam clocks using miniaturized atomic beams and monolithic clock chips
Number of patents in Portfolio can not be more than 2000
United States of America
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Dec 3, 2024
Grant Date -
N/A
app pub date -
May 13, 2023
filing date -
May 13, 2023
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A low-power, chip-scale atomic beam clock is provided that maintains high precision for at least one week at any practical temperature. In some variations, the invention provides a chip-scale atomic beam clock comprising: a micro-optical bench; an atom collimator configured to generate a collimated atomic beam via differential pumping through microchannels; a VCSEL configured to emit laser photons horizontally in the plane of the micro-optical bench; an in-plane lithographically defined diffraction grating configured to split the laser photons into a first photon beam and a second photon beam; in-plane lithographically defined mirrors configured to retroflect the photon beams; in-plane photodetectors configured to detect the photon beams after being retroflected, wherein the first photon beam and the second photon beam interrogate the collimated atomic beam in-plane with the micro-optical bench. The chip-scale atomic beam clocks is capable of maintaining precise positioning, navigation, and timing in case of GPS denial or failure.
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International Classification(s)
- 2023 Application Filing Year
- H03L Class
- 302 Applications Filed
- 126 Patents Issued To-Date
- 41.73 % Issued To-Date
Cited Art Landscape
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- 0 Citation Count
- H03L Class
- 0 % this patent is cited more than
- 1 Age
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