Accession Number : ADD018256
Title : Single In-Line Fiber-Optic Rotary Joint.
Descriptive Note : Patent, Filed 14 Jul 95, patented 3 Sep 96,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : DeMarco, James S , Jr
Report Date : 03 Sep 1996
Pagination or Media Count : 5
Abstract : A single in-line fiber-optic rotary joint includes inner and outer concentric body portions which are rotatable relative to each other around a common longitudinal axis. An optical to electrical converter is mounted in the inner body portion and it is operative for receiving an incoming optical signal and converting it to a corresponding electrical signal. A light source mounted along the longitudinal axis of the inner body portion receives the converted electrical signal and emits a corresponding light signal along the longitudinal axis. A light detector is positioned along the longitudinal axis in the outer body portion wherein it receives the light signal and generates a corresponding electrical signal. The electrical signal from the light detector is received by an electrical to optical converter which converts the electrical signal back to an optical signal, thus establishing a complete pathway through the rotary joint.
Descriptors : *FIBER OPTICS, *ELECTROOPTICS, *PATENTS, *WAVEGUIDE COUPLERS, OPTICAL EQUIPMENT, LIGHT SOURCES, CONVERTERS
Subject Categories : Fiber Optics and Integrated Optics
Electrooptical and Optoelectronic Devices
Distribution Statement : APPROVED FOR PUBLIC RELEASE