Methods and apparatus for magnetically compensated chip scale atomic clock
An atomic and atomic cavity technology, applied in the field of atomic clocks, which can solve the problems of expensive, difficult to design, and large size of magnetic shields
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[0012] Corresponding numerals and symbols in the different figures generally refer to corresponding parts unless otherwise indicated. The drawings are not necessarily drawn to scale. The term "coupled" may include connections with intervening elements, and there may be additional elements and various connections between any elements "coupled".
[0013] figure 1 is a cross-sectional view of the chip-scale atomic clock device 100 . In the CSAC device 100 , the physical unit 102 is shown as a component, eg, packaged in a ceramic body and mounted on a packaging substrate 106 . In this example, the physical unit 102 contains a vertical cavity surface emitting laser (VCSEL) 110 with a laser beam directed through a miniature temperature stabilized atomic chamber 112 . The atomic chamber contains a quarter wave polarizer labeled QWP and a chamber labeled P-35 containing a small amount of atomic gas, in this example cesium. The light emission caused by the laser energy striking the...
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