Class / Patent application number | Description | Number of patent applications / Date published |
385097000 | Alignment of fiber ends prior to splicing | 36 |
20090010601 | Cladding Alignment for Fusion Splicing Optical Fibers - In aligning ends of optical fibers ( | 01-08-2009 |
20090046982 | COMPACT, ACTIVE ALIGNMENT FUSION SPLICER WITH AUTOMATIC VIEW-ANGLE COMPENSATION - In accordance with various aspects of the present invention, provided is an extremely compact, simple, and cost-effective approach for aligning optical fibers in an optical fiber fusion splicer. The basis of this alignment method is an “S”-Curve Piezo Bending Actuator. The device comprises a thin strip of elastically flexible material (such as spring steel, beryllium copper, or fiber reinforced polymer) that is coated in four areas with a piezoelectric material (such as barium titanate or other known compounds). | 02-19-2009 |
20090080842 | Apparatus for splicing optical fibers - An apparatus for splicing optical waveguides has a memory circuit in which data items which identify a state of the apparatus for splicing the optical waveguides are stored. The memory circuit is used to store data items which identify a state of the optical waveguides to be spliced. Stored data items indicate conditions of the environment in which a splice process has been carried out. The apparatus can be used to record a plurality of data items which can be evaluated for analysis of a splice process, in particular for an analysis of a fault which has occurred during the splice process. | 03-26-2009 |
20090180742 | Device for installing an optical fibre in a splice connector - A device for installing an optical fibre in a connector, comprising an optical fibre cleaving mechanism ( | 07-16-2009 |
20090208174 | Apparatus for positioning optical fibers - An apparatus for splicing optical fibers is arranged on a supporting plate in the form of a printed circuit board. The apparatus comprises a first optical fiber guide, which is arranged on a spring plate to displace a first optical fiber in the longitudinal direction, and a second optical fiber guide, which is arranged on a further spring plate to displace a second optical fiber in the longitudinal direction. The spring plates are arranged on a respectively bendable lever arm. The optical fibers which have been inserted in the optical fiber guides can be displaced in a lateral direction by bending the lever arms. The precision required for alignment of the optical fibers can be provided by stepping down the forces acting on the bending apparatuses. | 08-20-2009 |
20110064366 | AUTOMATIC ALIGNMENT FOR SPLICING OF NON-CIRCULAR FIBER - A method of aligning a non-circular fiber with another component is provided. A method of aligning a first D-fiber with a second D-fiber includes rotating the first D-fiber; obtaining a first image profile of an end of the first D-fiber; using the first image profile to measure a diameter of a cladding of the first D-fiber along a first direction; and repeating these operations until a minimum diameter of the cladding of the first D-fiber is aligned along the first direction. The method also includes rotating the second D-fiber; obtaining a second image profile of an end of the second D-fiber; using the second image profile to measure a diameter of a cladding of the second D-fiber along the first direction; and repeating these operations until a minimum diameter of the cladding of the second D-fiber is aligned along the first direction. | 03-17-2011 |
20120002929 | DEVICE AND METHOD FOR SPLICING OPTICAL FIBERS, AND USE OF AN END PIECE IN A DEVICE FOR SPLICING - The invention relates to a device for splicing fiber optic lines having a first and second holder for direct or indirect receiving of at least one fiber optic line each, an alignment means for aligning the ends of the fiber optic lines received in the first and in the second holder to one another and electrodes in the region of the ends of the fiber optic lines aligned to one another for creating a slice connection. The two holders on one side and the alignment means and preferably the electrodes on the other side can move relative to one another between a splicing position and a release position such that the splice connection is released in the release position. | 01-05-2012 |
20120237173 | Fiber Optic Closure - A component for a closure is disclosed herein. The component includes a collar extending around a central axis. The component also includes a first expansion housing positioned outside the collar in a radial direction relative to the central axis. The first expansion housing has an interior region in communication with an interior of the collar. The first expansion housing also includes a first adapter mounting wall defining a plurality of first adapter mounting openings in which a plurality of first fiber optic adapters are mounted. The first fiber optic adapters include first connector ports adapted for receiving connectors from outside the first expansion housing. | 09-20-2012 |
20120243839 | FERRULE HOLDER - A ferrule holder is provided as one capable of improving convenience in a fusion splice between a built-in fiber and an optical fiber. The ferrule holder | 09-27-2012 |
20120263423 | SPLICING CONNECTORS ALONG WITH ADAPTERS THEREFOR - Adapters for receiving high-fiber count splicing connector assemblies are disclosed. The adapter includes a splice guide insert having a first plurality of bores that extend from a first end of the splice guide and a second plurality of bores that extend from a second end of the splice guide. The splice guide aligns the optical fibers of respective splicing connector assemblies received on opposite ends of the adapter for making an optical connection. Additionally, methods are disclosed for laser processing multiple rows of fibers. | 10-18-2012 |
20130236147 | Cladding Alignment for Fusion Splicing Optical Fibers - In aligning ends of optical fibers, e.g. for performing a prealignment of ends of large mode area double-clad fibers (LMA-DCFs) in order to thereafter perform a core alignment process, in a fiber optic fusion splicer a best, optimum or near optimum position or setting of the optical system for observing the self-focusing effect is first determined and then the very alignment operation may be performed using the determined setting. The very alignment process may then be performed by adjusting stepwise the offset distance between the observed fiber ends by e.g. using a cascade technique. | 09-12-2013 |
20130259433 | FIELD-INSTALLABLE FIBER OPTIC CONNECTORS AND RELATED CABLE ASSEMBLIES - Field-installable mechanical splice connectors for making optical and/or electrical connections in the field are disclosed. One embodiment is a mechanical splice connector having an optical portion that includes at least one lens. The connector also includes a mechanical retention component for securing at least one optical field fiber to the at least one body. | 10-03-2013 |
20140105552 | FIBER OPTIC CONNECTORS, CABLE ASSEMBLIES, AND METHOD FOR MAKING THE SAME - A fiber optic connector has a mechanical splice assembly and a mechanical splice assembly holder. The mechanical splice assembly holder includes a body section and a cable retention section. The cable retention section includes a pair of cable retention arms extending from the body section and a guiding groove that is extended out from the body section. The guiding groove is located between the two cable retention arms. | 04-17-2014 |
20140112629 | ALIGNMENT OF SINGLE-MODE POLYMER WAVEGUIDE (PWG) ARRAY AND SILICON WAVEGUIDE (SIWG) ARRAY OF PROVIDING ADIABATIC COUPLING - A method for fabricating, and a structure embodying, a single-mode polymer wave guide array aligned with a polymer waveguide array through adiabatic coupling. The present invention provides a structure having a combination of (i) a stub fabricated on a polymer and (ii) a groove fabricated on a silicon (Si) chip, with which an adiabatic coupling can be realized by aligning (a) a (single-mode) polymer waveguide (PWG) array fabricated on the polymer with (b) a silicon waveguide (SiWG) array fabricated on the silicon chip; wherein, the stub fabricated on the polymer is patterned according to a nano-imprint process, along with the PWG array, in a direction in which the PWG array is fabricated, and the groove fabricated on the silicon chip is fabricated along a direction in which the SiWG array is fabricated. | 04-24-2014 |
20140161400 | FIBER OPTIC TERMINATION ARRANGEMENT AND METHOD OF MAKING THE SAME - A fiber optic termination arrangement includes a first optical fiber with a core surrounded by cladding having, a first end having a first outer surface and a second end having a second outer surface. The second outer surface is sized to match that of a second optical fiber to facilitate splicing the second end of the first optical fiber to a third end of the second optical fiber. Additionally, the first outer surface is sized and configured to interface with a connector capable of operationally aligning the core of the first optical fiber with a core of a third optical fiber or an optical receiving/transmitting device. The first optical fiber also includes a transition region wherein a third outer surface of the first optical fiber transitions from the first outer surface to the second outer surface. | 06-12-2014 |
20150010278 | FIBER OPTIC CLOSURE - A component for a closure is disclosed herein. The component includes a collar extending around a central axis. The component also includes a first expansion housing positioned outside the collar in a radial direction relative to the central axis. The first expansion housing has an interior region in communication with an interior of the collar. The first expansion housing also includes a first adapter mounting wall defining a plurality of first adapter mounting openings in which a plurality of first fiber optic adapters are mounted. The first fiber optic adapters include first connector ports adapted for receiving connectors from outside the first expansion housing. | 01-08-2015 |
20150055918 | METHOD AND APPARATUS FOR ALIGNING A LARGE DIAMETER OPTICAL FIBER - A method for aligning an optical fiber that includes: directing a laser beam into a beam splitter to generate a pair of beams that are directed to a pair of reflectors that redirect the pair of beams such that the pair of beams intersect with each other and go to a pair of power detectors; and moving an optical fiber into the paths of the pair of beams until power detected at each of the pair of detectors is minimized. | 02-26-2015 |
20150063766 | CABLE SPLICING FIXTURE - An alignment fixture is configured to receive a group of optical fibers with each of the optical fibers having a coating and a bare fiber end. The fixture includes a first end configured to permit insertion of the optical fibers into a body of the fixture and a second end configured to align the bare fiber ends of the optical fibers in a particular arrangement. The fixture includes channels extending from the first end to the second end. An insertion point of each channel is at least twice the diameter of a coating of the one of the optical fibers. An exit point of each channel is narrower than the insertion point and is configured to position the bare fiber end of the optical fiber in the particular arrangement within a desired tolerance relative to other optical fibers. The alignment fixture enables easy splice alignment and protection in the field. | 03-05-2015 |
20180024293 | OPTICAL FIBER TERMINATION TOOL | 01-25-2018 |
385098000 | End-to-end (butt) coupling | 17 |
20090028508 | OPTICAL CONNECTOR ASSEMBLY - The present solution relates to a system and method of an optical connector assembly for interconnecting two optical fibers. The optical connector assembly has a splice with a fiber conduit for holding bare ends of the two optical fibers together. Additionally, the optical connector has two corresponding ferrules. The two corresponding ferrules are for securing optical fibers and for aligning the bare end of an optical fiber into the splice without catching an edge. The method includes compressing along the longitudinal axis a first ferrule against the splice to force a guiding member of the first ferrule into a first aperture of the splice, thus opening a conduit of the splice at the first aperture. Once the optic fiber is inserted, the method includes releasing the compression along the longitudinal axis of the first ferrule against the splice to allow the splice to apply radial retention forces on fibers. A sheath to form a connector body of the optical connector assembly interconnects the ferrules. | 01-29-2009 |
20090087151 | Index-matching gel for nanostructure optical fibers and mechanical splice assembly and connector using same - A polymer based index-matching gel for use with nanostructure optical fibers is disclosed. The index-matching gel has at least one polymer component having a viscosity η at 25° C. of 3 Pa-s≦η≦100 Pa-s, which prevents the index-matching gel from wicking into the voids and down the nanostructure optical fiber to a depth where the fiber performance and/or device performance is compromised. The gel is suitable for use when mechanically splicing optical fibers when at least one of the optical fibers is a nanostructure optical fiber. The gel is also suitable for use in fiber optic connectors wherein at least one of the optical fibers constituting the connection is a nanostructure optical fiber. | 04-02-2009 |
20090103870 | Fiber optic splice - A splicing method and splicing kit are suitable for creating a multimode mechanical splice. The splice may be used, for example, in Aircraft Battle Damage Repair operations. The splice utilizes two cylindrical inner crimp sleeves and an outer crimping assembly. The inner crimp sleeves are placed over prepared fiber cable ends, and the fiber core is cleaved. The cable ends are then inserted into an outer cannula of the outer crimping assembly. The cannula guides the inner crimp sleeves, and the cleaved fiber ends enter a glass ferrule in the cannula. The glass ferrule has a triangular bore containing an index matching gel. A window in the cannula and a magnifying viewer are provided to visually confirm the splice quality. The fibers may be cleaved by forming a circumferential score on the fiber. | 04-23-2009 |
20090148109 | OPTICAL CONNECTOR - An optical connector for splicing a rear end of a pre-assembled optical fiber that is mounted within an optical ferrule with a tip of a second optical fiber is provided. The optical connector includes a connector body and an anchor mechanism for anchoring the second optical fiber to the connector body. The anchor mechanism includes a holder for holding the second optical fiber, and connecting portion which anchors the holder to the connector body. The length of the second optical fiber from the holder to the tip is longer than the distance from the holder to the rear end of the pre-assembled optical fiber. The rear end of the pre-assembled optical fiber is a curved convex end surface or an end with a diameter-reducing portion, and is PC-connectable to the tip of the second optical fiber. | 06-11-2009 |
20100054675 | INDEX-MATCHING GEL FOR NANOSTRUCTURE OPTICAL FIBERS AND MECHANICAL SPLICE ASSEMBLE AND CONNECTOR USING SAME - A polymer based index-matching gel for use with nanostructure optical fibers is disclosed. The index-matching gel has a viscosity η at 25° C. of 3 Pa-s≦η≦100 Pa-s, which prevents the index-matching gel from wicking into the voids and down the nanostructure optical fiber to a depth where the fiber performance and/or device performance is compromised. The gel is suitable for use when mechanically splicing optical fibers when at least one of the optical fibers is a nanostructure optical fiber. The gel is also suitable for use in fiber optic connectors wherein at least one of the optical fibers constituting the connection is a nanostructure optical fiber. | 03-04-2010 |
20100086264 | Optical connector - In an embodiment of the invention, an optical connector for optically coupling respective end faces of two optical fiber cables including an optical fiber composed of a core and a cladding and a covering layer covering the optical fiber includes a protection sleeve, a cable insertion tube disposed in the protection sleeve for inserting thereinto and butting the respective end faces of the two optical fiber cables, an uncured refractive index matching material disposed between the protection sleeve and the cable insertion tube, and a supply hole formed in the cable insertion tube for supplying the uncured refractive index matching material to an inside of the cable insertion tube. The cable insertion tube includes a cable receiving room for receiving an end of the two optical fiber cables inserted, a fiber receiving room for receiving the optical fiber, and a covering removal member formed at a boundary of the cable receiving room and the fiber receiving room for removing the covering layer. | 04-08-2010 |
20100086265 | Optical connector - In an embodiment of the invention, an optical connector for optically coupling respective end faces of two optical fiber cables including an optical fiber composed of a core and a cladding includes a beat shrinkable tube, a cable insertion tube disposed in the heat shrinkable tube for inserting thereinto and butting the respective end faces of the two optical fiber cables, an uncured refractive index matching resin disposed between the beat shrinkable tube and the cable insertion tube, and a resin supply hole formed in the cable insertion tube for supplying the uncured refractive index matching resin to an inside of the cable insertion tube. In an alternative embodiment, an optical connector includes a protection sleeve, a cable insertion tube disposed in the protection sleeve for inserting thereinto and butting the respective end faces of the two optical fiber cables, an optical instantaneous adhesive material disposed between the protection sleeve and the cable insertion tube, and an adhesive material supply hole formed in the cable insertion tube for supplying the optical instantaneous adhesive material to an inside of the cable insertion tube. | 04-08-2010 |
20110317967 | SPLICED CONNECTION BETWEEN TWO OPTICAL FIBERS AND METHOD FOR PRODUCING A SPLICED CONNECTION OF THIS TYPE - The invention in certain embodiments relates to a spliced connection between first and second optical fibres, each of which has a fibre core and fibre cladding resting against said core. In said connection, the fibre cladding of at least one of the two fibres is completely removed in a connection region that extends for a predetermined length from the spliced end of the respective fibre in the longitudinal direction of the fibre and said connection is provided with a support sleeve, in which the spliced ends of the two fibres are located and which extends at least along the entire connection region of the first fibre and beyond, over the fibre cladding of the first fibre. The section of the support sleeve that extends over the fibre cladding of the first fibre does not rest against the fibre cladding of the first fibre and said sleeve is mechanically connected to the fibre core of the first fibre in the connection region of said first fibre, either directly or by means of an intermediate sleeve. | 12-29-2011 |
20120328251 | Mechanical Splicer Apparatus for Fiber Optic Cables - The invention provides and apparatus for mechanically splicing fiber optic cables and method for performing the process. The apparatus comprises an inventive segmented track with a middle track segment containing a splicer mount, and first and second rotating track segments on opposed sides of a middle segment, the rotating segments moving from a cleaving orientation wherein the rotating track segments align with a respective flat edge angled cleaver and a rounded edge angled cleaver, to a splicing orientation wherein the rotating track segments align with the middle track segment. First and second fiber key holders securely holding partially stripped fiber optic cables move along the respective first and second track segment for cleaving by the cleavers and then toward the middle track segment where their cleaved tips come into controlled aligned contact within a splicer joint contained in the splicer joint mount. | 12-27-2012 |
20120328252 | APPARATUS AND METHODS FOR THE DETERMINATION OF A BIREFRINGENCE AXIS OF A POLARIZATION-MAINTAINING OPTICAL FIBER - In some embodiments, a non-transitory processor-readable medium storing code includes code to cause a processor to receive an image signal associated with an image of an end face of a polarization-maintaining optical fiber (PM fiber), determine a center position of the PM fiber, perform a local image equalization on the end face, and define an edge map of the end face. The code can perform a Hough space analysis on the edge map to determine the center position of a first structure and/or a second structure on the end face. The first structure and the second structure can each define at least in part a birefringence of the PM fiber. A birefringence axis of the PM fiber can be calculated based on at least two of the center position of the PM fiber, the center position of the first structure and the center position of the second structure. | 12-27-2012 |
20130094820 | REPAIRING METHOD, REPAIRING STRUCTURE AND CONNECTING STRUCTURE OF EMBEDDED OPTICAL FIBER OF COMPOSITE MATERIAL STRUCTURE - A method of repairing an embedded optical fiber of a composite material structure including an embedded optical fiber embedded in a composite material, includes removing a portion of the composite material including a damaged portion of the embedded optical fiber to form an opening portion; polishing an end surface of the embedded optical fiber exposed in the opening portion and an end surface of the composite material exposed in the opening portion; and performing position adjustment such that a core of the polished embedded optical fiber and a core of a replacement optical fiber are aligned with each other, butting the end surface of the embedded optical fiber and an end surface of the replacement optical fiber with each other, and connecting the end surface of the embedded optical fiber and the end surface of the replacement optical fiber together. | 04-18-2013 |
20130156387 | TERMINATION ASSEMBLY FOR OPTICAL FIBERS - An assembly and method for splicing optical fibers is provided. A termination assembly may include a housing having an engagement element for engagement with an engagement component of a fixture and a support or splicer joint between which a first optical fiber extends in a longitudinal direction. A locking mechanism or a splicer joint may be operable to be biased against the first optical fiber to maintain an end of the first optical fiber at the support or the splicer joint fixed in position and only in a predetermined alignment with an end of a second optical fiber fixedly supported by the support or the splicer joint, such that the end of the second optical fiber is fixed at a predetermined orientation and a predetermined position at the support associated with the predetermined alignment by engagement of the engagement element with the engagement component. | 06-20-2013 |
20130202257 | Fiber Optic Mechanical Splicer - A fiber optic mechanical splicer includes: a fiber connection base including a plurality of insertion parts, fiber connection parts, and auxiliary protuberances, the insertion parts being formed at lengthwise opposite sides of the fiber connection base, each of the insertion parts having an insertion hole through which an optical cable is inserted, the fiber connection parts being formed between and integrally with the insertion parts, the fiber connection parts having a connection groove formed at a central portion of the fiber connection parts and extending in a lengthwise direction of the fiber connection parts and insertion grooves formed at opposite ends of the connection groove, each of the insertion grooves being narrower in a downward direction, each of the auxiliary protuberance protruding upward from edges of the fiber connection parts; a base cover assembled with the fiber connection base while covering the fiber connection parts, the base cover being supported by the auxiliary protuberances; and one or more fastening clamps elastically fitted around the fiber connection base and the base cover through sliding in a state in which the fastening clamps are opposed to each other, the fastening clamps fixedly holding the fiber connection base and the base cover with each other while pressing the optical fiber seated in the connection groove. | 08-08-2013 |
20140178018 | MULTICORE FIBER - A multicore fiber includes a first multicore fiber member and a second multicore fiber member, one end face of the first multicore fiber member being spliced to one end face of the second multicore fiber member, wherein at least two core end faces of multiple cores in the first multicore fiber member are spliced one-to-one to core end faces of multiple cores in the second multicore fiber member, and, among the cores in the first multicore fiber member and the cores in the second multicore fiber member spliced one-to-one at the core end faces, at least one core in the first multicore fiber member and one core in the second multicore fiber member spliced thereto have different effective core areas, and an open end face of the core having the larger effective core area is a face which light enters. | 06-26-2014 |
20160070058 | MULTICORE OPTICAL FIBER AND OPTICAL MODULE - The present invention relates to an MCF with a structure for enabling an alignment work with higher accuracy. The MCF has a plurality of cores and a cladding. An outer peripheral shape of the cladding in a cross section of the MCF is comprised of a circumferential portion forming a circumference coincident with an outer periphery of the MCF, and a cut portion. The cut portion has a bottom portion and two contact portions provided on both sides of the bottom portion and projecting more than the bottom portion. When a side face of the MCF is viewed, the two contact portions have flattened faces and the flattened faces of the two contact portions extend along a longitudinal direction of the MCF with the bottom portion in between. | 03-10-2016 |
20160077286 | OPTICAL FIBER CONNECTION STRUCTURE AND OPTICAL FIBER CONNECTOR - An optical fiber connection structure is provided, in which a first optical fiber and a second optical fiber, which is optically connected to the first optical fiber via a solid refractive index-matching material which is provided on a tip surface of the first optical fiber, are held and fixed between a base member and a cover member, a tip of the second optical fiber is disposed so as to come into contact with the solid refractive index matching material or separated from the solid refractive index-matching material, and the entire solid refractive index matching material and the tip of the second optical fiber are disposed in a liquid refractive index matching agent which is provided between the base member and the cover member. | 03-17-2016 |
20160116674 | FIELD TERMINABLE FIBER OPTIC CONNECTOR ASSEMBLY - A fiber optic connector assembly includes a connector and a carrier. The connector has first and second ends and a terminated fiber. The fiber defines a first end adjacent the first end of the connector and a second end protruding out of the second end of the connector. A carrier having a connector end and an opposite cable end is engaged with the connector. An alignment structure on the carrier includes a first end, a second end, and a throughhole and also a cutaway extending perpendicularly to and communicating with the throughhole. The fiber is positioned within at least a portion of the throughhole with the second end located within the cutaway. A window is within the cutaway over the second end of the fiber for visually inspecting the alignment of the second end of the fiber with an end of another fiber. | 04-28-2016 |