Oscillators – Automatic frequency stabilization using a phase or frequency... – Molecular resonance stabilization
Reexamination Certificate
2005-08-09
2005-08-09
Shingleton, Michael B (Department: 2817)
Oscillators
Automatic frequency stabilization using a phase or frequency...
Molecular resonance stabilization
C331S094100
Reexamination Certificate
active
06927636
ABSTRACT:
In an apparatus using optically excited atomic media, such as an atomic frequency standard, a source providing a controlled emission of light for exciting the D1and/or D2resonance lines of an alkali gas, such as rubidium or cesium, is controlled by an output generated by digital electronics from the light intensity signal of a light sensor for light transmitted by the alkali gas, an output for representing ambient temperature, and a light intensity-ambient temperature algorithm to substantially eliminate changes in light intensity due to light source aging for the purpose of reducing changes in temperature sensitivity of the apparatus as a function of time and the light-shift contribution to the frequency aging of the standard.
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Crockett Jeff D.
Deng Jinquan
English Thomas C.
Shingleton Michael B
Symmetricom, Inc.
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