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. 07, 2017
Filed:
May. 26, 2015
Thales, Courbevoie, FR;
Jérôme Bourderionnet, Palaiseau, FR;
Arnaud Brignon, Palaiseau, FR;
THALES, Courbevoie, FR;
Abstract
A system for phasing periodically configured laser sources, which comprises: means for collimating and directing the beams arising from the sources onto a combining diffractive optical element with a periodic phase grating, with an angle of incidence that differs from one beam to the next, these angles of incidence being determined according to the period of the grating; means for controlling the phases of the sources based on a negative feedback signal arising from the combined beams; means for drawing off a fraction of the combined beams; on the path of this fraction of the beams, a Fourier lens, with the combining diffractive optical element in its object plane; a matrix of detectors in the image plane of the Fourier lens, capable of detecting intensity distributions; means for calculating the negative feedback signal based on these intensity distributions.