The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2012
Filed:
Sep. 17, 2010
Daniel W. Youngner, Maple Grove, MN (US);
Son T. LU, Plymouth, MN (US);
Jeff A. Ridley, Shorewood, MN (US);
Linda J. Forner, Carver, MN (US);
Daniel W. Youngner, Maple Grove, MN (US);
Son T. Lu, Plymouth, MN (US);
Jeff A. Ridley, Shorewood, MN (US);
Linda J. Forner, Carver, MN (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
Designs and processes for thermally stabilizing a vertical cavity surface emitting laser (vcsel) in a chip-scale atomic clock are provided. In one embodiment, a Chip-Scale Atomic Clock includes: a vertical cavity surface emitting laser (vcsel); a heater block coupled to a base of the vcsel; a photo detector; a vapor cell, wherein the vapor cell includes a chamber that defines at least part of an optical path for laser light between the vcsel and the photo detector; and an iso-thermal cage surrounding the vcsel on all sides, the iso-thermal cage coupled to the heater block via a thermally conductive path.