Accession Number : ADD007424

Title :   Planar Fiber Optic Star and Access Coupler.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Milton,A Fenner ; Giallorenzi,Thomas G

Report Date : 22 Jul 1980

Pagination or Media Count : 5

Abstract : The patent is concerned with a planar, optical star and access coupler for multiterminal communication systems which use multimode fibers as the transmission line either as a plurality of single fiber lines, in multichannel fiber cable or in minibundles. The fibers are placed in a row so that the core ends abut the end of a high-aspect angle rectangular cross section clad ribbon fiber which is preferably not as thick as the diameter of the core of the individual fibers for optimum packing fraction loss. Optical radiation, such as from a laser or light-emitting diode, entering the ribbon-fiber mixer element from all of the fibers on one end will be mixed by the ribbon fiber and be transmitted equally on each of the output fibers. Also, radiation from any one fiber will be divided equally between all of the transmission fibers on the opposite end of the ribbon fiber.

Descriptors :   *Patents, *Fiber optics transmission lines, *Connectors, *Waveguide couplers, Optical circuits, Alignment, Optical communications, Data transmission systems, Bus conductors, Mixers(Electronics), Light emitting diodes, Communication terminals

Subject Categories : Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE