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:
Dec. 13, 1977
Filed:
May. 28, 1976
Peter Dennis Steensma, Midland Park, NJ (US);
International Telephone and Telegraph Corporation, Nutley, NJ (US);
Abstract
The communication system includes a holographic system to provide a plurality of spatially multiplexed optical beams each modulated by a different one of a plurality of binary intelligence signals. The plurality of modulated spatially multiplexed optical beams are coherently transmitted on an optical waveguide to a hologram and an array of photosensors to recover each of the intelligence signals. The waveguide may be an optical fiber of the parabolic index type to coherently transmit all of the plurality of modulated spatially multiplexed optical beams, or a plurality of single mode step index optical fibers each coherently transmitting a different one of the plurality of modulated spatially multiplexed optical beams.