Accession Number : ADD011365

Title :   Holographic Directional Coupler for Fiber Optic Systems.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Horner,J L ; Ludman,J E

Report Date : 14 Aug 1984

Pagination or Media Count : 10

Abstract : A fiber optic directional coupler having a holographic element incorported therein. A single optical signal impinges on the holographic element and is separated into a plurality of individual signals which are coupled to a plurality of individual optical fibers. Only a fraction of the incident electromagnetic radiation incident on the holographic element is transmitted to any one of the plurality fibers. Reversing the direction of the radiation causes all the energy emanating from the combined plurality of fibers to be coupled to the single receiving fiber.

Descriptors :   *Patents, *Couplers, *Fiber optics transmission lines, Directional, Laser communications, Multichannel communications, Holography, Beam splitting, Photographic emulsions, Plates

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE