Roanoke, VA, United States
Roanoke, VA, United States
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A light intensity adjustable ultraviolet device for curing an optical fiber coating includes a cylindrical mounting base; a UVLED light source module mounted along a peripheral direction and an axial direction in an inner cavity of the cylindrical mounting base; a cylindrical focusing lens configured in front of a light emitting surface of the UVLED light source module, so that ultraviolet light emitted by the UVLED light source module is focused on a curing axis; and an ultraviolet sensor mounted in the inner cavity of the cylindrical mounting base, wherein the ultraviolet sensor is connected to a UVLED power supply control module via an ultraviolet intensity signal processing module; the UVLED power supply control module is connected to the UVLED light source module, so that an optical fiber drawing speed and an ultraviolet intensity form a control closed loop.


Patent
Shanghai Electrical Cable Research Institute and Optical Cable | Date: 2014-12-31

The present invention discloses a test platform for high-frequency cable, comprising conductive contacts and clamps for pressing a conductor of the cable on the conductive contact, and comprising a splitter seat, which comprises a top surface and a plurality of varied sides, the conductive contacts are respectively arranged on the sides, the clamps are arranged at a peripheral of the splitter seat and is opposite to the conductive contact, the splitter seat is further provided with a splitter channel, and the splitter channel slantingly connects the top surface to the sides. The present invention adopts a splitter seat with a polyhedral structure, which may shorten the stripped length, and prevent for vertically bending the core, thereby reducing the damage to the cable structure to the greatest extent, and greatly increasing the test frequency.


Patent
Optical Cable | Date: 2017-01-17

A system for radially terminating cabling includes a stuffer cap component surrounding an opening sized and configured for selective passage therethrough of a plurality of conductor pairs; a plurality of slots concentrically arranged on the front end of the stuffer cap component, wherein each wire of each of the plurality of conductor pairs may be selectively pressed into one of the plurality of slots; at least one keying member on the stuffer cap component having a unique keying member geometry; a connector including a receptacle component configured for mating with the stuffer cap component, wherein at least one keying element on the receptacle component is geometrically sized and configured for passage therethrough of a corresponding one of the keying members; a plurality of IDCs each being aligned for engaged abutment with a corresponding one of the wires of the plurality of conductor pairs when the stuffer cap component is axially rotated by a user.


A communication connector includes a housing and a plurality of electrical contacts received by the housing. A printed circuit board (PCB) is provided and includes at least first and second pairs of electrical conductive traces. The first pair of traces is connected to a first pair of contacts. The second pair of traces is connected to a second pair of contacts. The PCB further includes at least a first ground plane. The first ground plane has first and second sections. The first and second sections are electrically isolated from one another. At least a portion of the first and second sections being adjacent to at least a portion of the first and second pairs of traces, respectively, whereby signal transmission is enhanced. A layer of dielectric material which has a relatively low dielectric constant is located between the first and second traces and the first ground plane.


A single-mode fiber with an ultra-low attenuation and a large effective area includes a core layer having a radius of 4.8 to 6.5 and a relative refractive index difference n_(1 )of 0.06% to 0.10%, and cladding layers. The cladding layers includes an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary cladding layer. The inner cladding layer has a radius of 9 to 15 m and a relative refractive index difference of 0.40% to 0.15%. The trench cladding layer has a radius of 12 to 17 m and a relative refractive index difference of 0.8% to 0.3%. The auxiliary outer cladding layer has a radius of 37 to 50 m and a relative refractive index difference of 0.6% to 0.25%. The outer cladding layer is a pure-silicon-dioxide glass layer.


A light intensity adjustable ultraviolet device for curing an optical fiber coating includes a cylindrical mounting base; a UVLED light source module mounted along a peripheral direction and an axial direction in an inner cavity of the cylindrical mounting base; a cylindrical focusing lens configured in front of a light emitting surface of the UVLED light source module, so that ultraviolet light emitted by the UVLED light source module is focused on a curing axis; and an ultraviolet sensor mounted in the inner cavity of the cylindrical mounting base, wherein the ultraviolet sensor is connected to a UVLED power supply control module via an ultraviolet intensity signal processing module; the UVLED power supply control module is connected to the UVLED light source module, so that an optical fiber drawing speed and an ultraviolet intensity form a control closed loop.


Patent
Optical Cable | Date: 2016-03-28

There is provided a communication connector for improving signal transmission performance, the communication connector including a cable termination component being sized and configured for selective receipt of a plurality of conductor pairs of a cable; a plurality of slots on said cable termination component, wherein each wire of each of the plurality of conductor pairs may be selectively pressed into one of the plurality of slots; a receptacle component including a plurality of electrical contacts and a plurality of offset-positioned insulation displacement contacts (IDCs), each of the plurality of offset-positioned IDCs being aligned for engaged abutment with a corresponding one of the wires of the plurality of conductor pairs when the cable termination component and the receptacle component are coupled; a printed circuit board; and wherein the offset placement of the IDCs increases the separation distance between IDCs of another receptacle component when a plurality of the receptacle components are adjacent to one another, whereby a signal transmission is improved.


Patent
Optical Cable | Date: 2015-04-08

The present invention is related to an all-dry central tube air blown micro optical cable. The cable consists of an outer sheath and a loose tube which is covered in the outer sheath and inside which the fibers are set, and is characterized in that the water-blocking yarns are coated inside the loose tube and the longitudinal grooves are provided in the outer surface of the outer sheath circumferentially. Compared with conventional cables, the cable according to present invention has a smaller diameter and the less weight, and can be installed in the plastic tubes of 5/3.5 mm or even less at a longer distances. The longitudinal grooves in the outer surface of the outer sheath are not only helpful for the stripping of the optical cable, but also reduce the friction between the optical cable and the wall of the tube in the process of air blown, thereby facilitate the air flow. Furthermore, the use of the sheath material with lower coefficient of friction reduces the drag force of air blown, thus further increases the laying distances of the optical cable. The use of the water-blocking yarns avoids cleaning in the process of fiber splicing, thus greatly reduces splicing time and improves the efficiency of constructions. The cable according to present invention occupies less duct resources and lowers the cost of constructions.


There is provided a communication connector including a housing and a plurality of electrical contacts received by the housing. A printed circuit board (PCB) is provided and includes first and second pairs of electrically conductive signal traces on different layers of the PCB, each pair of the first and second pairs of traces being connected to a corresponding pair of the plurality of pairs of contacts; and at least one split ground plane including first and second sections being substantially electrically isolated from one another, wherein at least a portion of the first section is adjacent to at least a portion of the first pair of traces and at least a portion of the second section is adjacent to at least a portion of the second pair of traces.


Patent
Optical Cable | Date: 2016-02-22

An inline splicing module for use in combination with one or more fiber subgroup cables each having a plurality of individual fibers includes a backplane component having top and bottom sides; at least one projection on the backplane component defining a cable slack storage component for securing the fiber subgroup cable in a storage position; at least one splice capturing component on the backplane component having a plurality of splice protector sleeves that are each sized and configured for securing therethrough a corresponding one of the plurality of individual fibers from one of the one or more fiber subgroup cables; and a plurality of fiber optic couplers each being structured and disposed for receipt of a corresponding one of the plurality of individual fibers.

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