Oscillators – Automatic frequency stabilization using a phase or frequency... – Molecular resonance stabilization
Patent
1991-12-31
1993-03-09
Pascal, Robert J.
Oscillators
Automatic frequency stabilization using a phase or frequency...
Molecular resonance stabilization
331 941, H03L 700
Patent
active
051929210
ABSTRACT:
A cell-type atomic frequency standard utilizing a miniaturized gas cell and microwave exciter along with a diode laser light source. The intensity of the diode laser light source counterbalances the penalties associated with the small gas cell. The signal produced by an oscillator is applied to a vapor within the gas cell by a miniature helix coil, or LC gap conductor, or a microstrip exciter. With the dimensions of the gas cell not exceeding one-half the wavelength of the signal, and the associated circuitry formed on a semiconductor substrate, the resulting frequency standard is reduced in size by two orders of magnitude when compared to prior art devices of comparable accuracy.
REFERENCES:
patent: 4462006 (1984-07-01), Fowks
patent: 4476445 (1984-10-01), Riley, Jr.
patent: 4494085 (1985-01-01), Goldberg
patent: 4943955 (1990-07-01), Rabian
patent: 4961119 (1990-10-01), Irish
L. L. Lewis, "Miniature Optically Pumped Cesium Standards", 45th Annual Symposium on Frequency Control, Feb. 1991, pp. 521-533.
Chantry Peter J.
McAvoy Bruce R.
Smith, Jr. Thomas J.
Tallisa Salvador H.
Weinert Robert W.
Maire David G.
Pascal Robert J.
Westinghouse Electric Corp.
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