Atomic oscillator

Details Atomic oscillator Atomic oscillator

2009-06-17

2011-11-29

Pascal, Robert (Department: 2817)

Oscillators

Molecular or particle resonant type

C331S003000, C250S251000

Reexamination Certificate

active

08067990

ABSTRACT:
An atomic oscillator includes: a gas cell in which a gaseous metal atom is sealed; heating units heating the gas cell to a predetermined temperature and being a first heater and a second heater; a light source of exciting light exciting the metal atom in the gas cell; a light detecting unit detecting the exciting light which has passed through the gas cell; a substrate including at least a temperature controlling circuit for the heating units; a first heater wiring coupling the first heater and the substrate; a second heater wiring coupling the second heater and the substrate; and a third heater wiring coupling the first heater and the second heater. In the atomic oscillator, the gas cell includes a cylindrical portion; and windows which respectively seal openings at both ends of the cylindrical portion and constitute an incident surface and an emitting surface on an optical path of the exciting light. The first heater and the second heater are respectively formed on the windows at an incident surface side and an emitting surface side and made of transparent heating materials.

REFERENCES:
patent: 6320472 (2001-11-01), Vanier
patent: 6806784 (2004-10-01), Hollberg et al.
patent: 7652473 (2010-01-01), Kawabata
patent: 2006/0002276 (2006-01-01), Maruyama et al.
patent: 10-284772 (1998-10-01), None

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