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. 12, 1999
Filed:
Oct. 10, 1997
Electonics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A spatial switch of a simple structure using a 'M.times.N' optical beam steering device which operates with M '1.times.N' spatial switches using a phased optical waveguide array. The spatial switch using an optical beam steering device in accordance with the present invention is characterized in that the optical beam steering device includes an optical waveguide phase modulator array, the optical beam steering device is used as a '1.times.N' spatial switch device, and M units of the '1.times.N' spatial switch device are aligned in parallel so that a 'M.times.N' spatial switching operation is performed on a plane where a far field diffraction pattern of the '1.times.N' spatial switch device is formed. The spatial switch utilizes the characteristics that if the propagation directions of the lights output from '1.times.N' switches coincide with each other, the far field diffraction patterns formed by the switches converge into the same point.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile