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:
Oct. 20, 1992
Filed:
Dec. 21, 1990
Pierre-Alain Chollet, Clamart, FR;
Abstract
A Pockels effect electric field sensor includes, as a sensitive element, a crystal with electro-optic properties traversed by a luminous beam with specific polarization and propagation directions. The crystal is cut into the shape of an ellipsoid (14) and has a crystallographic symmetry being either uniaxial 622, 422 or 42m or cubic 43m or 23, the three perpendicular axes of the ellipsoid being orientated along three trirectangular crystallographic axes with the highest symmetry of the crystal. The sensor includes at least one measuring channel which includes a monochromatic light source (2) emitting an incident beam (4), a polarizing device (6) for polarizing the incident beam along a first crystallographic direction of the crystal, inlet fiber and lens (8, 12) for introducing the polarized incident beam into the crystal along a second crystallographic direction, an analyzing device (30) for analyzing the luminous beam emerging from the crystal, and a detection device (32) for detecting the analyzed luminous signal.