Accession Number : ADD017503

Title :   Multi-Channel Fiber Optic Rotatable Interconnection System.

Descriptive Note : Patent, Filed 21 Apr 94, patented 21 Feb 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Gryk, Thomas J

Report Date : 21 Feb 1995

Pagination or Media Count : 7

Abstract : A multi-channel fiber optic rotatable interconnection system for coupling optical signals from a plurality of diverse optical signal sources at a source location to a like plurality of optical signal receivers at a destination location rotatable relative to each other. The interconnection system comprises an input fiber and an output fiber both of which are comprised of step-index multi- mode optical fibers. The input fiber includes an input end which receives optical signals from the optical signal sources, the fiber forming a composite optical signal therefrom. The optical signal sources are positioned at diverse polar angles relative to the input end of the input fiber to provide a plurality of optical transmission modes having minimal crosstalk, so that the composite optical signal can be resolved into its component optical signals at the destination. A rotatable coupler is positioned co-axially between the input fiber and the output fiber thereby no allow the input fiber and the output fiber to rotate axially relative to each other. The rotatable coupler couples the composite optical signal from the input fiber to the output fiber. A signal detection arrangement positioned axially at the Output end of the Output fiber receives optical signals therefrom and separates it into its component optical signals for coupling to the receivers. (MM)

Descriptors :   *FIBER OPTICS, *PATENTS, SIGNAL PROCESSING, COUPLING(INTERACTION), OPTICAL EQUIPMENT, DATA TRANSMISSION SYSTEMS, FIBER OPTICS TRANSMISSION LINES, LIGHT TRANSMISSION, CIRCUIT INTERCONNECTIONS, CROSSTALK, DIVERSITY RECEPTION

Subject Categories : Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE