Abstract: A laser cleaving apparatus for use in terminating optical fiber cable ends has a laser beam source, the output of which is directed through a beam distorting member, which produces a beam having a chisel shape with a substantially flat side normal to the axis of a connector fiber containing ferrule and focuses it onto the fiber at a point adjacent the ferrule end face with the flat side also adjacent the end face. A single step polishing stage polishes the cleaved fiber end face to make it flat and flush with the ferrule end face.

Abstract: Connector systems for dynamically updating information related to a network and methods for developing the connector systems, are provided. A connector system for dynamically updating information related to the network, comprises: a connector; and an integrated circuit integrated in a surface of the connector. A method for developing the connector system comprises: obtaining a connector; and integrating an integrated circuit in a surface of the connector.

Abstract: Self-registration systems and methods for dynamically updating information related to a network, are provided. A self-registration system for dynamically updating information related to a network, comprises: a connector comprising an integrated circuit that stores a first block of information; an adapter coupled to the connector; a reader that receives the first block of information from the integrated circuit via the adapter; and a communication line coupled to the adapter via the connector, where the first block of information comprises a first block of information about network elements associated with the integrated circuit, and where the first block of information about network elements associated with the integrated circuit comprises information other than information identifying the connector, the adapter, the communication line and the integrated circuit.

Abstract: A high density panel mounting assembly has a first connector housing having first and second arrays of channels for receiving modified connectors, separated by a shelf. An adapter assembly for receiving the ferrules of the connectors has an interior wall having first and second arrays of bored projections forming sleeves for receiving the connector ferrules. The adapter assembly has a second connector housing substantially identical with the first connector housing mounted to or integral with the rear of the adapter housing for receiving individual connectors. Each of the connector housings has an array of apertures along the top and bottom surfaces for latching the connectors in place. Each of the connectors has a resilient latching arm having a distal end having a latching surface thereon which bears against the end of its corresponding aperture to latch the connector in place within the connector housing.

Abstract: Adapter systems for dynamically updating information related to a network and methods for developing the adapter systems, are provided. An adapter system for dynamically updating information related to the network comprises: an adapter; and an antenna integrated in one of a surface of the adapter and in a tape overlay that can be affixed to the surface of the adapter. A method for developing an adapter system comprises: obtaining an adapter; and integrating an antenna in one of a surface of the adapter and in a tape overlay that can be affixed to the surface of the adapter.

Abstract: A fiber optic cable suitable for blowing into and through ducts containing pressurized gas, such as natural gas, has the fibers therein arranged in arrays that form longitudinally extending vents. The vents are blocked from transmission of any gas by each being filled with a compliant member which assumes the cross-sectional shape of the vents thereby blocking it. In a second embodiment of the invention, the first and third ferrules are fixed within the housing with their offset bores in alignment. A second ferrule is interposed between the first and third ferrules and is mounted in a rotatable member for misaligning the bore in the second ferrule with the bores in the first and third ferrule to produce attenuation of a signal passing through the ferrules by misaligning the fibers contained in the bores.

Abstract: A variable attenuator has first and second substantially identical ferrules or capillaries, each being mounted in a barrel or splice housing and extending toward each other, with their distal ends being separated by a gap of a first width. The width of the gap is controlled by a sleeve into which the ferrules are inserted, the ends of the sleeve butting against the front faces of the barrels. The ferrules are made by producing a glass rod mounted between the barrels and having a bore offset from and parallel to the centerline of the rod and breaking or cleaving the rod at its longitudinal center. The broken ends are then polished. The barrels are keyed to a housing member so that the offset bores are coincident in the zero position as defined by the keys.

Abstract: A high density panel mounting assembly has a first connector housing having first and second arrays of channels for receiving modified connectors, separated by a shelf. An adapter assembly for receiving the ferrules of the connectors has an interior wall having first and second arrays of bored projections forming sleeves for receiving the connector ferrules. The adapter assembly has a second connector housing substantially identical with the first connector housing mounted to or integral with the rear of the adapter housing for receiving individual connectors. Each of the connector housings has an array of apertures along the top and bottom surfaces for latching the connectors in place. Each of the connectors has a resilient latching arm having a distal end having a latching surface thereon which bears against the end of its corresponding aperture to latch the connector in place within the connector housing.

Abstract: A fiber optic cable suitable for blowing into and through ducts containing pressurized gas, such as natural gas, has the fibers therein arranged in arrays that form longitudinally extending vents. The vents are blocked from transmission of any gas by each being filled with a compliant member which assumes the cross-sectional shape of the vents thereby blocking it.

Abstract: Connector systems for dynamically updating information related to a network and methods for developing the connector systems, are provided. A connector system for dynamically updating information related to the network, comprises: a connector; and an integrated circuit integrated in a surface of the connector. A method for developing the connector system comprises: obtaining a connector; and integrating an integrated circuit in a surface of the connector.

Abstract: Adapter systems for dynamically updating information related to a network and methods for developing the adapter systems, are provided. An adapter system for dynamically updating information related to the network comprises: an adapter; and an antenna integrated in one of a surface of the adapter and in a tape overlay that can be affixed to the surface of the adapter. A method for developing an adapter system comprises: obtaining an adapter; and integrating an antenna in one of a surface of the adapter and in a tape overlay that can be affixed to the surface of the adapter.

Abstract: Self-registration systems and methods for dynamically updating information related to a network, are provided. A self-registration system for dynamically updating information related to a network, comprises: a connector comprising an integrated circuit that stores a first block of information; an adapter coupled to the connector; a reader that receives the first block of information from the integrated circuit via the adapter; and a communication line coupled to the adapter via the connector, where the first block of information comprises a first block of information about network elements associated with the integrated circuit, and where the first block of information about network elements associated with the integrated circuit comprises information other than information identifying the connector, the adapter, the communication line and the integrated circuit.

Abstract: A variable attenuator has first and second substantially identical ferrules or capillaries, each being mounted in a barrel or splice housing and extending toward each other, with their distal ends being separated by a gap of a first width. The width of the gap is controlled by a sleeve into which the ferrules are inserted, the ends of the sleeve butting against the front faces of the barrels. The ferrules are made by producing a glass rod mounted between the barrels and having a bore offset from and parallel to the centerline of the rod and breaking or cleaving the rod at its longitudinal center. The broken ends are then polished. The barrels are keyed to a housing member so that the offset bores are coincident in the zero position as defined by the keys.

Abstract: Embodiments of the invention include an optical communications system including a multimode optical fiber having improved overfill-launch bandwidth performance without disturbing existing laser-launch bandwidth performance. The multimode optical fiber has a characteristic differential mode delay with a first portion associated with lower order modes that behaves conventionally and a second portion associated with higher order modes that deviates from conventional behavior in a way that improves overfill-launch bandwidth performance at one operating window without adversely impacting the laser-launch bandwidth performance at the same and other operating windows. Multimode optical fibers conventionally optimized for operation at 850 nm are configured in such a way that their characteristic differential mode delay, at 1300 nm, initially increases in a conventional manner and then flattens out to approximately zero at the higher order modes.

Abstract: Our method of making high bandwidth silica-based multimode optical fiber comprises provision of a non-circular preform, and drawing fiber of chiral structure from the preform. The non-circular preform can be made by maintaining the inside of the tubular preform under reduced pressure during at least part of the collapse, resulting in a non-circular core and cladding. It can also be made by removal (e.g., by grinding or plasma etching) of appropriate portions of the preform, resulting in a circular core and non-circular cladding. In the latter case, fiber is drawn at a relatively high temperature such that, due to surface tension, the cladding assumes substantially circular shape and the core assumes a non-circular shape. The chiral structure is imposed on the fiber in any appropriate way, e.g., by twisting during fiber drawing the fiber alternately in clockwise and couterclockwise sense relative to the preform.

Abstract: Our method of making high bandwidth silica-based multimode optical fiber comprises provision of a non-circular preform, and drawing fiber of chiral structure from the preform. The non-circular preform can be made by maintaining the inside of the tubular preform under reduced pressure during at least part of the collapse, resulting in a non-circular core and cladding. It can also be made by removal (e.g., by grinding or plasma etching) of appropriate portions of the preform, resulting in a circular core and non-circular cladding. In the latter case, fiber is drawn at a relatively high temperature such that, due to surface tension, the cladding assumes substantially circular shape and the core assumes a non-circular shape. The chiral structure is imposed on the fiber in any appropriate way, e.g., by twisting during fiber drawing the fiber alternately in clockwise and couterclockwise sense relative to the preform.

Abstract: Our method of making high bandwidth silica-based multimode optical fiber comprises provision of a non-circular preform, and drawing fiber of chiral structure from the preform. The non-circular preform can be made by maintaining the inside of the tubular preform under reduced pressure during at least part of the collapse, resulting in a non-circular core and cladding. It can also be made by removal (e.g., by grinding or plasma etching) of appropriate portions of the preform, resulting in a circular core and non-circular cladding. In the latter case, fiber is drawn at a relatively high temperature such that, due to surface tension, the cladding assumes substantially circular shape and the core assumes a non-circular shape. The chiral structure is imposed on the fiber in any appropriate way, e.g., by twisting during fiber drawing the fiber alternately in clockwise and couterclockwise sense relative to the preform.