An optical connector system includes: a first optical connector that includes a first shutter; and a second optical connector to be connected to the first optical connector. The first shutter opens by inclining toward the second optical connector when the first shutter comes into contact with the second optical connector.

An optical connector system includes: a first optical connector that includes a first shutter; and a second optical connector to be connected to the first optical connector. The first shutter opens by inclining toward the second optical connector when the first shutter comes into contact with the second optical connector.

An optical fiber assembly has a first ferrule assembly and a second ferrule assembly. Each ferrule assembly has a ferrule body, a plurality of optical fiber receiving bores, and an array of optical elements. One of array of optical elements has a plurality of data lens elements and a cross-focusing indicator lens element. Another of the array of optical elements has a plurality of data lens elements and a mirror system configured to reflect light from the indicator lens element. Upon mating the first and second ferrule assemblies, light from the indicator lens element is primarily reflected back to an output lens element by the mirror system. Upon only partially mating the first and second ferrule assemblies, light from the indicator lens element is not primarily reflected back by the mirror system to the output lens element.

A unitary multi-fiber ferrule has micro-holes for optical fibers, an optical stop plane for the optical fibers, and a plurality of lenses disposed adjacent the front end, each of the plurality of lenses optically aligned with one of the micro-holes and exposed to air. Multiple rows of optical fibers and lenses may also be used in the unitary multi-fiber ferrule. The unitary multi-fiber ferrule requires less processing and equipment than other current optical ferrules.

An electronically-managed optical fiber connection system is provided. A smart ferrule carrier comprises a plurality of ferrule bays configured to accept a tagged optical ferrule assembly. Each tagged optical ferrule assembly comprises an identification (ID) tag storing identification information for the optical ferrule assembly. A smart carrier board comprising a carrier controller is configured to read and/or write information to/from the ID tag of each tagged optical ferrule assembly. A smart carrier adapter is configured to accept a plurality of smart ferrule carriers, the smart carrier adapter including an adapter controller system. The adapter controller system includes an adapter controller configured to communicate with the carrier controller of each installed smart ferrule carrier and a system controller.

An indexing terminal arrangement includes a terminal housing that receives an input cable; an optical power splitter disposed within the interior of the terminal housing; a first multi-fiber optical adapter coupled to the terminal housing; a first single-fiber optical adapter coupled to the terminal housing; and a pass-through multi-fiber optical adapter coupled to the terminal housing. Split optical signals are provided to the first multi-fiber optical adapter and the first single-fiber optical adapter. Unsplit and indexed optical signals are provided to the pass-through optical adapter.

An indexing terminal arrangement includes a terminal housing that receives an input cable; an optical power splitter disposed within the interior of the terminal housing; a first multi-fiber optical adapter coupled to the terminal housing; a first single-fiber optical adapter coupled to the terminal housing; and a pass-through multi-fiber optical adapter coupled to the terminal housing. Split optical signals are provided to the first multi-fiber optical adapter and the first single-fiber optical adapter. Unsplit and indexed optical signals are provided to the pass-through optical adapter.

A ferrule for an optical connector includes: a ferrule main body that includes fiber holes that extend in a front-rear direction, that are disposed in a left-right direction, and into which optical fibers are inserted, a guide hole into which a guide pin is inserted, and a recessed portion recessed from a rear end surface of the ferrule main body toward a front side on which a connection end surface of the ferrule main body is disposed in the front-rear direction. A vertical direction is perpendicular to both the front-rear direction and the left-right direction. Rear end portions of the fiber holes open at a bottom surface of the recessed portion. The bottom surface includes a first inclined surface inclined toward the fiber holes in a direction toward the front side.

A ferrule for an optical connector includes: a ferrule main body that includes fiber holes that extend in a front-rear direction, that are disposed in a left-right direction, and into which optical fibers are inserted, a guide hole into which a guide pin is inserted, and a recessed portion recessed from a rear end surface of the ferrule main body toward a front side on which a connection end surface of the ferrule main body is disposed in the front-rear direction. A vertical direction is perpendicular to both the front-rear direction and the left-right direction. Rear end portions of the fiber holes open at a bottom surface of the recessed portion. The bottom surface includes a first inclined surface inclined toward the fiber holes in a direction toward the front side.

A ferrule for an optical connector includes: a ferrule main body including: a connection end surface; an upper surface; a lower surface opposite to the upper surface in a vertical direction, and fiber holes into which optical fibers are inserted along a front-rear direction perpendicular to the vertical direction, and that are arranged in a left-right direction perpendicular to the vertical direction and the front-rear direction. The connection end surface is disposed on a front side in the front-rear direction. Inner diameters of rear end openings of the fiber holes are in a range of 204.6 to 230.0 .Math.m, wherein the rear end openings are disposed on a rear side opposite to the front side in the front-rear direction. A wall surface covers an entirety of the upper surface and the lower surface.