Method and system for operating an atomic clock using a...

Details Method and system for operating an atomic clock using a... Method and system for operating an atomic clock using a...

2011-08-30

2011-08-30

Kayes, Sean (Department: 2833)

Horology: time measuring systems or devices

Electrical time base

Solid state oscillating circuit type

C324S301000, C324S304000, C331S003000, C331S094100

Reexamination Certificate

active

08009520

ABSTRACT:
A polarization gain medium such as an emitting laser diode provides the optical pumping. An atomic vapor cell is positioned in the laser cavity providing spontaneous push-pull optical pumping inside the laser cavity. This causes the laser beam to be modulated at hyperfine-resonance frequency. A clock signal is obtained from electrical modulation across the laser diode.

REFERENCES:
patent: 5602475 (1997-02-01), Bohler
patent: 5606291 (1997-02-01), Verbanets
patent: 5656974 (1997-08-01), Thomann et al.
patent: 5657340 (1997-08-01), Camparo et al.
patent: 5712597 (1998-01-01), Atsumi et al.
patent: 6303928 (2001-10-01), Buell et al.
patent: 6888780 (2005-05-01), Happer et al.
patent: 7102451 (2006-09-01), Happer et al.

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