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:
Sep. 09, 2014
Filed:
Aug. 03, 2009
Valentin P Gapontsev, Worcester, MA (US);
Alex Ovtchinnikov, Worcester, MA (US);
Dmitry Starodubov, Dudley, MA (US);
Alexey Komissarov, Charlton, MA (US);
Valentin P Gapontsev, Worcester, MA (US);
Alex Ovtchinnikov, Worcester, MA (US);
Dmitry Starodubov, Dudley, MA (US);
Alexey Komissarov, Charlton, MA (US);
IPG Photonics Corporation, Oxford, MA (US);
Abstract
A system for recording multiple volume Bragg gratings (VBGs) in a photo thermo-refractive material is configured to implement a method which provides for irradiating the material by a coherent light through a phase mask. The system has a plurality of actuators operative to displace the light source, phase mask and material relative to one another so as to mass produce multiple units of the material each having one or more uniformly configured VBGs.