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Microfabricated atomic frequency references
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DOI：10.1088/0026-1394/42/3/S11.png)
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Abstract
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Using microfabrication processes, we have been able to construct physics packages for vapour cell atomic frequency references 100x smaller than previously existing versions, with a corresponding reduction in power consumption. In addition, the devices offer the potential for wafer-level fabrication and assembly, which would substantially reduce manufacturing costs. It is anticipated that a complete frequency reference could be constructed based on these physics packages with a total volume below 1cm(3), a power dissipation near 30 mW and a fractional frequency instability below 10(-11) over time periods from hours to days. Such a device would enable the use of atomically precise timing in applications that require battery operation and portability, such as hand-held global positioning system receivers and wireless communication systems.
Keywords:
VAPOR CELLS
CLOCK
RESONANCES
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