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:
Nov. 08, 2016
Filed:
Oct. 11, 2013
Centre National DE LA Recherche Scientifique—cnrs, Paris, FR;
Universite DE Franche Comte, Besancon, FR;
Nicolas Passilly, Auxin-Dessus, FR;
Christophe Gorecki, Pin, FR;
Ravinder Chutani, Besancon, FR;
Rodolphe Boudot, Trepot, FR;
Centre National de la Recherche Scientifique—CNRS, Paris, FR;
Universite de Franche Comte, Besancon, FR;
Abstract
The invention relates to an alkali-metal vapor cell, especially for an atomic clock, and to its manufacturing process. The alkali-metal vapor cell is able to be associated with a laser for emitting an external input laser beam and a photodetector for receiving an external output laser beam, and comprises a housing having an upstream optical window and a downstream optical window and forming an optical cavity filled with an alkali-metal vapor such as a caesium-comprising vapor, and micro-optical means arranged in the optical cavity and comprising an upstream optical reflector and a downstream optical reflector for reflecting the laser beam, which reflectors are inclined relative to each other, the upstream reflector being inclined relative to the plane (P) of the upstream window and to the axis of the input laser beam so that the external input laser beam passes through the upstream window in order to form an internal input laser beam, the latter being reflected by the upstream reflector and deviated towards the downstream reflector so as to form an internal intermediate laser beam that is reflected on the downstream reflector and deviated towards the downstream window so as to form an internal output laser beam, the internal output laser beam passing through the downstream window in order to form the external output laser beam.