Adhesively Fixed Patents (Class 385/80)
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Publication number: 20140233895Abstract: A fiber-optic connector for connecting an optical fiber to other optical assemblies is disclosed. The fiber-optic connector includes a top plate having a window of similar refractive index and transmission index as the material of an optic fiber to be contained within the fiber-optic connector. The fiber-optic connector also includes a ferrule connected to the top plate via multiple spring-loaded screws. The ferrule includes an interface and an insert. The insert is capable of firmly gripping an optical fiber. In order to reduce Fresnel reflection losses of the fiber-optic connector, the window is pre-coated with an anti-reflective surface on the side opposite an optic fiber to be contained within the fiber-optic connector.Type: ApplicationFiled: September 26, 2013Publication date: August 21, 2014Applicant: BAE Systems Information and Electronic Systems Integration Inc.Inventors: Joseph M. Owen, David P. Kelly
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Patent number: 8783969Abstract: An illumination device includes an optical fiber holder configured to hold an optical fiber, a phosphor holder configured to hold a phosphor and faces the optical fiber holder, and a bonding material configured to intervene between the optical fiber holder and the phosphor holder to bond them. The illumination device includes adjustment guide members configured to intervene between the optical fiber holder and the phosphor holder, relatively positionally adjust the optical fiber holder and the phosphor holder so as to arrange an optical axis of the optical fiber and an optical axis of the phosphor on one line, and configured to prevent the optical fiber holder and the phosphor holder from tilting when the bonding material is cured.Type: GrantFiled: July 20, 2011Date of Patent: July 22, 2014Assignee: Olympus CorporationInventors: Toru Kuboi, Satoshi Ohara
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Patent number: 8764316Abstract: A fiber optic connector includes a ferrule having a mating end and an insertion end and a ferrule holder having a first end portion in which the ferrule is received and a second end portion opposite the first end portion. The first end portion defines a first bore having a first bore width for receiving the ferrule. Additionally, the first end portion defines a bore surface and at least one groove formed in the bore surface. The at least one groove extends from where the insertion end of the ferrule is located within the first bore to a front face of the ferrule holder. Ridges are formed around the first bore because the at least one groove also extends in a circumferential direction. The ridges contact the ferrule and are deflected by the ferrule in a direction toward the insertion end of the ferrule.Type: GrantFiled: May 30, 2013Date of Patent: July 1, 2014Assignee: Corning Cable Systems LLCInventors: Robert Elvin Barnette, John Wayne Beatty, Hieu Vinh Tran
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Patent number: 8753021Abstract: An optical fiber may be secured to a ferrule of an optical connector with an adhesive mixture. The optical fiber may be secured by preparing an adhesive mixture, disposing the adhesive mixture in a fiber-receiving passage defining an inner surface of the ferrule, inserting the optical fiber into the fiber-receiving passage and into contact with the adhesive mixture, and curing the adhesive mixture. The adhesive mixture may be prepared by forming a base mixture that includes a base solvent, an alkyltrialkoxysilane, an aryltrialkoxysilane, and an aryltrifluorosilane. The adhesive mixture may be cured by heating to a temperature of at least about 200° C. and cooling to room temperature or below.Type: GrantFiled: February 12, 2013Date of Patent: June 17, 2014Assignee: Corning Cable Systems LLCInventors: Adra Smith Baca, Steven Bruce Dawes
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Publication number: 20140153880Abstract: The subject matter disclosed herein relates to a device and method for bundling optical fibers. The device has a receiving channel with a cavity for receiving the optical fibers. A cover with a protrusion is configured to be inserted into the cavity for compression of the optical fibers. The receiving channel has at least one hole in the receiving channel or the cover configured to receive any excess adhesive resulting from the compression of the optical fibers.Type: ApplicationFiled: November 30, 2012Publication date: June 5, 2014Applicant: General Electric CompanyInventors: Leland Fraser Rindge, Theodore Alexander Chilek
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Publication number: 20140147083Abstract: Methods for fabricating connectors for multilayered optical waveguides, as well as apparatuses for multilayered optical waveguides that embody ferrules and connectors. The method of fabricating a connector includes the steps of: stacking in a containing unit of a ferrule, a plurality of optical waveguides that are each preliminarily formed in the shape of layers; and injecting resin or adhesive through a space lying between the plurality of optical waveguides and the containing unit of the ferrule, with the plurality of optical waveguides contained in a stacked manner so that resin or adhesive reaches each of the plurality of optical waveguides.Type: ApplicationFiled: October 10, 2013Publication date: May 29, 2014Inventors: Shigeru Nakagawa, Hidetoshi Numata
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Patent number: 8702322Abstract: An optical fiber connector preloaded with an adhesive is provided. The optical connector includes an optical fiber-receiving passage. The passage includes a first passage section extending inwardly from the first face, and the first passage section has a first width. The passage includes a second passage section extending inwardly from the second face, and the second passage section has a second width. The second width is less than the first width. The passage includes a transition passage section located between the first passage section and the second passage section. The transition passage has a variable width, and the variable width of the transition section decreases as the distance to the second face decreases. A meltable adhesive composition is located within the transition passage section and is configured to bind an optical fiber to an inner surface of the second passage following melting and solidification of the adhesive composition.Type: GrantFiled: June 3, 2013Date of Patent: April 22, 2014Assignee: Corning Cable Systems LLCInventors: Jeffrey Dean Danley, Robert Bruce Elkins, II, Darrin Max Miller, Dennis Craig Morrison
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Publication number: 20140105550Abstract: An optical connector for terminating an optical fiber may include a ferrule, a optical fiber, and an adhesive composition. The ferrule may include a fiber-receiving passage defining an inner surface and the adhesive composition may be disposed within the ferrule and in contact with the inner surface of the ferrule and the optical fiber. The adhesive composition may include a partially cross-linked resin and a thermoset resin. The adhesive composition may include between about 1 to about 85 parts by weight of the thermoset resin per 100 parts by weight of the partially cross-linked resin.Type: ApplicationFiled: March 5, 2013Publication date: April 17, 2014Inventors: Edward John Fewkes, John Paul Krug, Ziwei Lui
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Patent number: 8696215Abstract: An optical connector for terminating an optical fiber may include a ferrule, an optical fiber, and an adhesive composition. The ferrule may include a fiber-receiving passage defining an inner surface and the adhesive composition may be disposed within the ferrule and in contact with the inner surface of the ferrule and the optical fiber. The adhesive composition may include a partially cross-linked resin, where at least about 5% by weight of the partially cross-linked resin is cross-linked and at least about 5% by weight is not.Type: GrantFiled: March 13, 2013Date of Patent: April 15, 2014Assignee: Corning Cable Systems LLCInventors: Edward John Fewkes, John Paul Krug, Ziwei Lui
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Patent number: 8678670Abstract: An optical fiber connector includes a ferrule, an inserted optical fiber, an external optical fiber, and a pair of reinforcing members that pinches and reinforces a fusion-spliced portion of the other end portion of the inserted optical fiber and the front end portion of the external optical fiber. The reinforcing members include adhesion layer on the inner surface thereof which comes in contact with the other end portion of the inserted optical fiber and the front end portion of the external optical fiber. The adhesion layer is depressed at the position where the inserted optical fiber and the external optical fiber come in contact with each other so as to closely adhere to the outer circumferential surfaces of the optical fibers in the fusion-spliced portion.Type: GrantFiled: July 13, 2012Date of Patent: March 25, 2014Assignee: Fujikura Ltd.Inventors: Shigeo Takahashi, Kazuhiro Takizawa
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Patent number: 8641295Abstract: An optical fiber connector includes a ferrule, an inserted optical fiber, an external optical fiber, and a pair of reinforcing members that pinches and reinforces a fusion-spliced portion of the other end portion of the inserted optical fiber and the front end portion of the external optical fiber. The reinforcing members include adhesion layer on the inner surface thereof which comes in contact with the other end portion of the inserted optical fiber and the front end portion of the external optical fiber. The adhesion layer is depressed at the position where the inserted optical fiber and the external optical fiber come in contact with each other so as to closely adhere to the outer circumferential surfaces of the optical fibers in the fusion-spliced portion.Type: GrantFiled: July 13, 2012Date of Patent: February 4, 2014Assignee: Fujikura Ltd.Inventors: Shigeo Takahashi, Kazuhiro Takizawa
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Patent number: 8622633Abstract: A connector for one or more optical fibers has a ferrule into which the optical fibers are glued directly with their outer cladding. No stripping of the fibers is required any longer before gluing them to the ferrule and thus, the difficulty of the fragility of the stripped fibers is overcome. The fibers are special fiber having a primary coating with smaller tolerances of ±2 microns. The fibers are arranged on a flexible foil which forms an optical overlay for a printed circuit board.Type: GrantFiled: July 8, 2002Date of Patent: January 7, 2014Assignee: Avanex CorporationInventor: Martin Kowatsch
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Patent number: 8622634Abstract: A ferrule assembly includes a ferrule comprising a ferrule boot insertion end and a ferrule boot defining an optical fiber channel. The optical fiber channel of the ferrule boot is shaped to receive a plurality of optical fibers therethrough. The ferrule boot includes an outer shell and a heat-activated adhesive liner is positioned within the outer shell channel and coupled to the inner surface of the outer shell. A portion of the outer shell is sized to be at least partially inserted into the ferrule boot insertion end of the ferrule. The outer shell has a thermal melting point that is greater than a thermal melting point of the heat-activated adhesive liner such that the heat-activated adhesive liner melts for adhering the plurality of optical fibers to the outer shell upon receipt of thermal energy.Type: GrantFiled: July 29, 2011Date of Patent: January 7, 2014Assignee: Corning Cable Systems LLCInventors: Misty Nichols Arnold, Terry Lee Cooke
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Patent number: 8620129Abstract: A fiber optic cable assembly includes a fiber optic cable and a cable pulling assembly. The fiber optic cable includes a first end and an oppositely disposed second end. The fiber optic cable further includes an outer jacket and a strength member disposed in the outer jacket. The cable pulling assembly is engaged to the second end of the fiber optic cable. The cable pulling assembly includes an enclosure defining a cavity. The second end of the fiber optic cable is disposed in the cavity. An adhesive is disposed in the cavity. The adhesive secures the strength member of the fiber optic cable to the enclosure.Type: GrantFiled: November 24, 2010Date of Patent: December 31, 2013Assignee: ADC Telecommunications, Inc.Inventors: Paula Rudenick, Thomas Marcouiller, Scott C. Kowalczyk, Jonathan W. Coan, Jonathan R. Kaml
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Publication number: 20130315541Abstract: The present disclosure relates to a fiber optic connector and cable assembly. The fiber optic connector includes a connector body and ferrule assembly mounted in the connector body. A spring is positioned within the connector body for biasing the ferrule assembly in a forward direction. The spring has a first spring length when the ferrule assembly is in a forwardmost position. A rear housing of the connector body includes a front extension that fits inside a rear end of the spring, the front extension having a front extension length. The fiber optic connector defines a gap between the front extension and a ferrule hub of the ferrule assembly, the gap having a first dimension measured between the front extension and the ferrule hub when the ferrule assembly is in the forwardmost position, the front extension length being longer than the first dimension.Type: ApplicationFiled: May 3, 2013Publication date: November 28, 2013Inventors: Ponharith Nhep, Patrick Nault
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Patent number: 8573858Abstract: An assembly includes a connector and a carrier engaged therewith. Connector has a first mating end and a second end and a first fiber. The fiber defines a first end adjacent the mating end and a second end protruding from the connector second end. Carrier has a connector end and an opposite cable end and includes a heat activated meltable portion adjacent the cable end. An alignment structure is on the carrier and includes first and second ends, and a throughhole. The first end of the alignment structure receives the second end of the first fiber and the second end receives an end of a second fiber entering the carrier. The heat activated portion melts and assumes a flowable condition when exposed to a predetermined amount of heat and resolidifies when heat is removed, bonding the second fiber to the carrier after the first and second fibers are aligned.Type: GrantFiled: May 27, 2010Date of Patent: November 5, 2013Assignee: ADC Telecommunications, Inc.Inventors: Kenneth Allen Skluzacek, Wagner Da Silva Aguiar, Jarrod Scadden, Wayne M. Kachmar
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Patent number: 8573856Abstract: A method for preparing a ferrule assembly avoids polishing while providing adequate control over fiber end protrusion and co-planarity. A distal end of the fiber is prepared before securing the fiber in a ferrule, and before or after inserting the fiber into the ferrule. The prepared fiber is manipulated to provide a desired spatial relationship between the fiber end and the ferrule's end face, and then secured to maintain the desired spatial relationship. Preferably, the fiber end is prepared using a laser cleaving technique to provide a suitable end without abrasive polishing. An interferometer may be used to obtain measurements, during manipulation of the prepared fiber within the ferrule, that indicate whether the prepared fiber is satisfactorily positioned. In accordance with other aspects of the invention, a ferrule assembly prepared in accordance with the method, and a connector or other optical package including such a ferrule assembly are provided.Type: GrantFiled: July 30, 2010Date of Patent: November 5, 2013Assignee: Tyco Electronics CorporationInventors: Joshua L. Webb, Douglas Harold Rohde, David William Cormany, Michael Lawrence Gurreri
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Patent number: 8559776Abstract: Provided is a ferrule which includes a positioning mechanism configured to position an optical fiber having a predetermined outer diameter, and a recess configured for an adhesive to be disposed therein and having a first inner wall from which a front end of the optical fiber portion positioned by the positioning mechanism is protrudable, and a second inner wall opposite to the first inner wall. A distance between the first inner wall and the second inner wall is less than or equal to four times the outer diameter of the optical fiber.Type: GrantFiled: September 9, 2010Date of Patent: October 15, 2013Assignee: Fujikura Ltd.Inventors: Tatsuya Ohta, Akito Nishimura, Terutake Kobayashi, Kunihiko Fujiwara
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Patent number: 8511909Abstract: An optical connector comprising: (a) a lens; (b) a ferrule assembly comprising a ferrule with an endface and at least one fiber in the ferrule having a fiber end presented at the endface; (c) a housing for holding the ferrule assembly and the lens in a certain axial and radial relationship; and (d) a glass element having a first and second surface, the first surface affixed to the endface such that it is in physical contact with the fiber end, the second surface having an AR coating and defining a space between it and the lens.Type: GrantFiled: April 8, 2010Date of Patent: August 20, 2013Assignee: Tyco Electronics CorporationInventors: Michael Aaron Kadar-Kallen, Soren Grinderslev, Randall Bobby Paul
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Publication number: 20130209043Abstract: Fiber optic cable sub-assemblies comprise a fiber optic cable including at least one optical fiber, a cable jacket that houses the optical fiber and at least one strength member. The fiber optic cable sub-assembly further comprises a collar including an inner portion seated within a cavity of an outer portion, wherein the inner portion is attached to an end portion of the strength member of the cable, and the optical fiber extends through the collar to protrude from an outer axial end of the collar. Methods of assembling a fiber optic cable sub-assembly include providing a cable having a strength member along with a collar having an inner portion and an outer portion, attaching the inner portion to an end portion of the strength member so the optical fiber extends from an outer axial end of the collar along with methods for making cable assemblies.Type: ApplicationFiled: February 1, 2013Publication date: August 15, 2013Inventors: Martin Eugene Norris, Thomas Theuerkorn
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Publication number: 20130163936Abstract: An optical ferrule and an optical connector are provided, which make it possible to reduce the labor required for an adhesive wiping operation even when the optical ferrule is small-sized. A first adhesive filling recess 113 is equipped, which is formed at an outlet of an optical fiber hole 112 so that a forward end of a bare fiber 120, which is positioned by the optical fiber hole 112, is allowed to abut against an inner wall opposed to the outlet, and the bare fiber 120 is adhered and fixed in a resultant state by means of an adhesive 131 with which the recess is filled, wherein the first adhesive filling recess 113 is provided with adhesive accommodating recesses 115, 117 which are provided only at side edge portions disposed on both sides in a longitudinal direction of the optical fiber.Type: ApplicationFiled: December 27, 2012Publication date: June 27, 2013Applicant: FUJIKURA LTD.Inventor: FUJIKURA LTD.
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Publication number: 20130136401Abstract: A ferrule assembly includes a ferrule comprising a ferrule boot insertion end and a ferrule boot. The ferrule boot includes a lower component and an upper component. The lower component of the ferrule boot includes a first grooved surface that includes a plurality of first grooves that are dimensioned to receive a plurality of optical fibers. The upper component includes a second grooved surface that includes a plurality of second grooves that are dimensioned to receive the plurality of optical fibers. In one embodiment, the lower component is coupled to the upper component such that individual ones of the plurality of first grooves are substantially aligned with individual ones of the plurality of second grooves. The lower component and the upper component also define a fiber insertion end and a ferrule insertion end of the ferrule boot. The ferrule insertion end of the ferrule boot is at least partially positioned within the ferrule at the ferrule boot insertion end.Type: ApplicationFiled: November 28, 2011Publication date: May 30, 2013Inventors: Terry L. Cooke, Tory A. Klavuhn, Matthew W. Smith, Wesley Allan Yates
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Patent number: 8430576Abstract: Embodiments of the invention describe optical cable housings including fiber termination units to couple optical fiber components to lenses. As in prior art solutions, embodiments of the invention utilize said fiber termination units to couple and optically align the optical fiber to the lenses; however, embodiments of the invention include flat-sided structures to more securely couple the optical fiber to the lenses; furthermore, said structures are more suitable for mass manufacturing compared to prior art solutions. Discussion herein of connectors and receptacles refers to providing a mechanical and communicative connection. The mating of the connector/receptacle may be facilitated via housing and alignment structural features, and typically includes contact of the electrical contacts and alignment of fiber optical signal transmission elements.Type: GrantFiled: March 15, 2011Date of Patent: April 30, 2013Assignee: Intel CorporationInventor: Jamyuen Ko
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Publication number: 20130089294Abstract: A fiber optic ferrule includes a body extending from a first end to a second opposite end, with the body including an axial passage extending between the first and the second ends. The axial passage includes a first diameter portion having a diameter of at least 125 microns, a second diameter portion having a diameter of at least 250 microns and less than a diameter of a buffer, and a smooth and continuous transition between the first and the second diameter portions. The second diameter portion is positioned between the first diameter portion and the second end. The axial passage further defines a tapered shape at the second end extending inward from the second end toward the second diameter portion. In certain embodiments, another smooth and continuous transition can be provided between the taper shape and the second diameter portion. In certain embodiments, the axial passage is smooth and continuous between the first and the second ends of the body. A hub holds the ferrule.Type: ApplicationFiled: October 10, 2012Publication date: April 11, 2013Inventor: Steven C. Zimmel
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Patent number: 8403836Abstract: A large diameter fiber is composed of a multimode optical fiber and provided with a fiber body having a constant diameter in an optical axis direction XA and a tapered section tapered in diameter toward a light exit surface. An adhesive member attaches the large diameter fiber inside a retaining hole of a tubular housing such that an outer circumferential surface of a tapered clad of the tapered section is entirely exposed to air to a predetermined depth from the light exit surface. A light passing space is a ring-like space formed between the exposed outer circumferential surface of the tapered clad and an inner circumferential surface of the tubular housing. Light in the tapered section is output from the light exit surface and partially leaked to the tapered clad. A part of the leaked light is released from the light passing space.Type: GrantFiled: February 15, 2010Date of Patent: March 26, 2013Assignee: FUJIFILM CorporationInventor: Shinichi Shimotsu
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Patent number: 8393804Abstract: A terminus for a fiber optic cable includes a ferrule. In one embodiment, an optical fiber of the cable passes through a central bore of the ferrule and is attached to a lens seated in a conical or cylindrical seat formed in an end surface of the ferrule by an epoxy. In a second embodiment, an optical fiber of the cable passes through the central bore of the ferrule. Next, a cap sleeve with a lens therein is slid over and attached to the ferrule such that the lens abuts or is attached to the optical fiber. In either embodiment, an inspection slot may optionally be formed in the ferrule and/or the cap sleeve to allow a technician to inspect the state of the attachment and/or abutment and/or spacing of the optical fiber and lens.Type: GrantFiled: December 17, 2008Date of Patent: March 12, 2013Assignee: CommScope, Inc. of North CarolinaInventors: Jeffrey D. Nielson, Gary Gibbs, Matthew Cruz, Timothy W. Anderson
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Publication number: 20130028560Abstract: A ferrule assembly includes a ferrule comprising a ferrule boot insertion end and a ferrule boot defining an optical fiber channel. The optical fiber channel of the ferrule boot is shaped to receive a plurality of optical fibers therethrough. The ferrule boot includes an outer shell and a heat-activated adhesive liner is positioned within the outer shell channel and coupled to the inner surface of the outer shell. A portion of the outer shell is sized to be at least partially inserted into the ferrule boot insertion end of the ferrule. The outer shell has a thermal melting point that is greater than a thermal melting point of the heat-activated adhesive liner such that the heat-activated adhesive liner melts for adhering the plurality of optical fibers to the outer shell upon receipt of thermal energy.Type: ApplicationFiled: July 29, 2011Publication date: January 31, 2013Inventors: Misty Nichols Arnold, Terry Lee Cooke
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Publication number: 20130028561Abstract: An optical fiber connector assembly includes at least one ferrule, the ferrule having a front end, at least one bore for receiving at least one optical fiber, and an optical fiber at least partially disposed in the bore, at least a portion of the at least one optical fiber being disposed in the at least one ferrule bore so that a section of the at least one fiber portion has an end face that is essentially even with the ferrule front end, a section of the optical fiber having a bulge which has a size which is larger than the bare optical fiber diameter, the fiber at least partially contacts a surface of the ferrule bore, and the contact defining a fiber-to-ferrule interface region. The fiber-to-ferrule interface region includes substantial contact between the bulge and a portion of the surface of the bore such that movement of the fiber in the bore is inhibited and the remaining portion of the optical fiber is substantially centered in the at least one bore.Type: ApplicationFiled: February 3, 2012Publication date: January 31, 2013Inventors: James P. Luther, Darrin M. Miller
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Publication number: 20130004129Abstract: The expanded beam, fiber optic connector includes an optical fiber, and a ferrule. The optical fiber includes a modified mode field diameter segment. The ferrule includes a recess. The optical fiber is retained by the ferrule. The modified mode field diameter segment is positioned in the recess of the ferrule.Type: ApplicationFiled: June 29, 2011Publication date: January 3, 2013Inventor: Wade F. M. Zhang
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Patent number: 8328432Abstract: A fiber optic cable assembly includes a fiber optic connector and a fiber optic cable having at least one strength element, the connector and cable held together by a crimp band. The crimp band may include at least one lateral aperture on at least one end for inspecting the disposition of the strength element prior to crimping to ensure a uniform distribution of the strength element.Type: GrantFiled: November 23, 2010Date of Patent: December 11, 2012Assignee: Corning Cable Systems LLCInventors: Terry L. Cooke, David L. Dean, Jr., Christopher S. Houser, James M. Wilson
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Publication number: 20120288238Abstract: The present invention relates to an optical fiber connector whereby an operator can easily couple optical fibers on site, and to an assembly method for the same. More specifically the invention relates to: an optical fiber connector wherein a guide ferrule bush is provided between a ferrule and a coil spring so as to be able to solve a problem whereby a ferrule optical fiber between a ferrule body and a reinforcing sleeve is bent, and a problem whereby contact between the ferrule body and the ferrule optical fiber is broken due to frequent movement, when the ferrule moves within a range of movement provided for by a resilient member due to the resilient member; and to an assembly method for the same.Type: ApplicationFiled: August 25, 2010Publication date: November 15, 2012Inventors: Chan Soul Park, Kwang Cheon Lee, Sang Chul Jun, Jun Young Park
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Publication number: 20120281951Abstract: An optical fiber connector includes a ferrule, an inserted optical fiber, an external optical fiber, and a pair of reinforcing members that pinches and reinforces a fusion-spliced portion of the other end portion of the inserted optical fiber and the front end portion of the external optical fiber. The reinforcing members include adhesion layer on the inner surface thereof which comes in contact with the other end portion of the inserted optical fiber and the front end portion of the external optical fiber. The adhesion layer is depressed at the position where the inserted optical fiber and the external optical fiber come in contact with each other so as to closely adhere to the outer circumferential surfaces of the optical fibers in the fusion-spliced portion.Type: ApplicationFiled: July 13, 2012Publication date: November 8, 2012Applicant: FUJIKURA LTD.Inventors: Shigeo TAKAHASHI, Kazuhiro TAKIZAWA
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Patent number: 8303193Abstract: Retention bodies for securing a fiber optic cable therewith for optical connectorization are disclosed. The fiber optic cable is inserted into a passage of the retention body and secured to the same. In one embodiment, the retention body includes a buckling chamber for accommodating longitudinal movement of an optical fiber of a fiber optic cable, such as due to retraction of a ferrule. The buckling chamber may also facilitate alignment and/or centering of the optical fiber when inserted through the passage of the retention body for further insertion into a ferrule of a fiber optic connector sub-assembly or the like.Type: GrantFiled: September 30, 2008Date of Patent: November 6, 2012Assignee: Corning Cable Systems LLCInventors: Casey A. Coleman, Thomas Theuerkorn
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Patent number: 8272792Abstract: Retention bodies for securing a fiber optic cable thereto for optical connectorization are disclosed along with fiber optic cable assemblies. The fiber optic cable is inserted into a passage of the retention body and secured to the same using a bonding agent and/or a mechanical element. The rear end opening of the passage is configured for inserting and securing an end portion of the fiber optic cable having at least one strength component and a portion of a cable jacket. Additionally, the retention body has a buckling chamber disposed within the retention body passage for accommodating movement of optical fiber.Type: GrantFiled: January 19, 2009Date of Patent: September 25, 2012Assignee: Corning Cable Systems LLCInventors: Casey A. Coleman, Thomas Theuerkorn
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Patent number: 8202010Abstract: A connector component for optical fibers has good dimensional accuracy and parallelism. The connector component includes a base material. The base material is provided with at least two holes for inserting and fixing optical fibers therein. The base material is made of quartz glass. Inner components are arranged for forming holes for inserting optical fibers in a die for forming an outer form of the connector component with a dimensional accuracy equal to or less than 2 ?m. Slurry is poured into the die, the slurry including quartz powder, a resin binder, a dispersant, water and a curing agent. The poured slurry is cured and heated under vacuum so as to vitrify the cured slurry to obtain the quartz glass.Type: GrantFiled: April 15, 2011Date of Patent: June 19, 2012Assignee: Kohoku Kogyo Co., Ltd.Inventors: Futoshi Ishii, Shuhei Yoshizawa, Tamotsu Yajima, Haruhito Araki
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Patent number: 8155495Abstract: The present invention is directed to an assembly of an optical fiber and an optical fiber holder for holding the optical fiber, the optical fiber having an end surface formed at an end portion thereof, the end surface being configured to perform light coupling with a light emitting element or with a light receiving element. The optical fiber holder comprises; a throughhole which extends through the optical fiber holder and a recess that is positioned on a surface of the optical fiber holder and that is provided with an opening of the throughhole. The optical fiber is inserted through the throughhole and an adhesive is filled in a gap between an inner wall of the throughhole and an outer periphery of the optical fiber, the adhesive being used for adhering the optical fiber to the optical fiber holder. The end portion, on which is formed the end surface of the optical fiber, protrudes from the opening and terminates within the recess.Type: GrantFiled: January 27, 2010Date of Patent: April 10, 2012Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Masanori Goto, Masahiro Onishi
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Patent number: 8152384Abstract: Push-pull fiber optic connectors and cable assemblies having a latch that is actuated by a cam surface are disclosed. The fiber optic connectors include a ferrule and a housing having the latch. A shroud fits over a portion of the housing and allows the craft to grab the shroud and push the shroud and hence the fiber optic connector into a suitable adapter or the like. Likewise, the craft can grab the shroud and pull on the same to remove the fiber optic connector out of the adapter or the like. The cam surface is disposed on a decoupling member, wherein the decoupling member is attached to the shroud so the components can move together. Methods of making the push-pull fiber optic connector are also disclosed.Type: GrantFiled: October 15, 2009Date of Patent: April 10, 2012Assignee: Corning Cable Systems LLCInventors: Michael de Jong, Paul X. Devereaux, Ashley W. Jones, Ronald L. Mudd
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Publication number: 20120045177Abstract: A fiber optic ferrule includes a body extending from a first end to a second opposite end, with the body including an axial passage extending between the first and second ends. The axial passage includes a first diameter portion having a diameter of at least 125 microns, and a second diameter portion having a diameter of at least 250 microns and less than a diameter of the buffer, the second diameter portion positioned between the first diameter and the second end. The axial passage further defines a tapered shape at the second end extending inward from the second end to the second diameter portion. A hub holds the ferrule. A method of assembling a terminated fiber optic cable is also provided.Type: ApplicationFiled: May 24, 2011Publication date: February 23, 2012Applicant: ADC Telecommunications, Inc.Inventors: Scott Droege, Steven C. Zimmel
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Patent number: 8118494Abstract: An optical fiber connector comprises an outer housing configured to mate with a receptacle and a collar body disposed in the outer housing. The collar body receives and secures a ferrule in a first portion of the collar body. The ferrule includes a central bore that defines an axis. The ferrule further includes a fiber stub disposed in a portion of the central bore, the fiber stub comprising a first optical fiber having a first end proximate to an end face of the ferrule and a prepared second end terminating within the ferrule. The collar body further includes a second portion that includes a housing portion to house a gripping device that grips a second optical fiber.Type: GrantFiled: February 7, 2008Date of Patent: February 21, 2012Assignee: 3M Innovative Properties CompanyInventors: Donald K. Larson, Sidney J. Berglund, Paul N. Winberg, James R. Bylander, Takaya Yamauchi, Tomoyasu Oike, Yukino Miyoshi
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Publication number: 20110317959Abstract: Provided is a ferrule which includes a positioning mechanism configured to position an optical fiber having a predetermined outer diameter, and a recess configured for an adhesive to be disposed therein and having a first inner wall from which a front end of the optical fiber portion positioned by the positioning mechanism is protrudable, and a second inner wall opposite to the first inner wall. A distance between the first inner wall and the second inner wall is less than or equal to four times the outer diameter of the optical fiber.Type: ApplicationFiled: September 9, 2010Publication date: December 29, 2011Applicant: FUJIKURA LTD.Inventors: Tatsuya OHTA, Akito NISHIMURA, Terutake KOBAYASHI, Kunihiko FUJIWARA
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Patent number: 8047728Abstract: A method of assembling an optical fiber connector includes the steps of providing a ferrule with an internal through passage, and using a gas for treating a surface of the internal through passage to enhance a bonding capability of the surface. Adhesive is introduced into at least a portion of the internal through passage and at least one optical fiber is secured to the surface of the internal through passage by the adhesive. Another method includes the steps of providing the ferrule with an internal through passage including a shoulder, a window that extends through a side surface, and a cap having at least a portion inserted into the window. Adhesive is introduced into at least a portion of the internal through passage and is in engagement with the shoulder for providing an axial stop for securing at least one optical fiber with respect to the internal through passage.Type: GrantFiled: August 13, 2008Date of Patent: November 1, 2011Assignee: Corning Cable Systems LLCInventors: Christopher Paul Lewallen, James Phillip Luther, Hieu Vinh Tran
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Publication number: 20110194819Abstract: A connector component for optical fibers has good dimensional accuracy and parallelism. The connector component includes a base material. The base material is provided with at least two holes for inserting and fixing optical fibers therein. The base material is made of quartz glass. Inner components are arranged for forming holes for inserting optical fibers in a die for forming an outer form of the connector component with a dimensional accuracy equal to or less than 2 ?m. Slurry is poured into the die, the slurry including quartz powder, a resin binder, a dispersant, water and a curing agent. The poured slurry is cured and heated under vacuum so as to vitrify the cured slurry to obtain the quartz glass.Type: ApplicationFiled: April 15, 2011Publication date: August 11, 2011Applicant: KOHOKU KOGYO CO., LTD.Inventors: Futoshi ISHII, Shuhei YOSHIZAWA, Tamotsu YAJIMA, Haruhito ARAKI
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Patent number: 7942587Abstract: A strain-relief assembly for a field-installable fiber optic connector is disclosed, wherein the assembly includes a ferrule holder, an intermediate sleeve, and a crimp sleeve. The ferrule holder back section holds a buffered section of a fiber optic cable, while the ferrule holder front end holds a ferrule and a splice assembly. A stub fiber is held within the ferrule and the splice assembly so as to interface with a section of field optical fiber protruding from the buffered section. The intermediate sleeve engages and generally surrounds a portion of the ferrule holder back section and thus surrounds a portion of the buffered layer. An intermediate sleeve handler may be used to handle the intermediate sleeve and attached the intermediate sleeve to the ferrule holder back section. Stress-relief strands from the fiber optic cable are flared around the outer surface of the intermediate sleeve. A crimp sleeve is placed over the intermediate sleeve to hold the ends of the stress-relief strands in place.Type: GrantFiled: August 5, 2010Date of Patent: May 17, 2011Assignee: Corning Cable Systems LLCInventors: Ray S. Barnes, Kristine A. McEvoy, David W. Meek, Scott E. Semmler
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Patent number: 7874740Abstract: A housing (10) for an optical waveguide ferrule (12), includes first distance elements (22, 28) being determinative for a distance between two adjacently arranged housings (10) and being formed by formations of the housing (10), the first distance elements (22, 28) being located opposite each other with respect to one of a center axis (M) of the housing (10) and the optical waveguide ferrule (12) arranged in the housing (10), and the first distance elements (22, 28) being formed by a pair of first distance elements of a first type (22) and a second type (28) differing from the first type (22).Type: GrantFiled: May 14, 2009Date of Patent: January 25, 2011Assignee: Harting Electronics GmbH & Co. KGInventor: Rita Hoffmann
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Patent number: 7857525Abstract: An optical connector according to the present invention comprises a ferrule and a V-groove board connected to the ferrule, wherein a first optical fiber and a second optical fiber being butt jointed in a V-groove formed in the V-groove board so as to be interconnected; the second optical fiber is connected to the first optical fiber through a refractive index matching material of cross-link curing type applied to an end surface on the V-groove board side of the first optical fiber; and spaces are provided in the V-groove so as to relax stress loaded on the refractive index matching material of cross-link curing type.Type: GrantFiled: December 27, 2007Date of Patent: December 28, 2010Assignee: Hitachi Cable, Ltd.Inventors: Kanako Suzuki, Yoshihisa Kato, Noribumi Shiina, Kazumasa Ohsono, Tomoyuki Nisio
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Patent number: 7850372Abstract: In an optical connector with optical fibers in which silica glass optical fibers with resin coating layers remaining attached are connected in optical fiber openings of a ferrule made from resin, at least a part of the resin coating layer of the optical fiber is glued to an inner face of the optical fiber opening, an outer diameter of the resin coating layer of the optical fiber is less than or equal to 125 ?m, and the Young's modulus of the resin coating layer is less than the Young's modulus of the ferrule, and the Young's modulus of the resin coating layer is 1500 to 10000 MPa.Type: GrantFiled: February 20, 2009Date of Patent: December 14, 2010Assignee: Fujikura Ltd.Inventors: Akito Nishimura, Takaaki Ishikawa, Kunihiko Fujiwara, Yukio Hayashi
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Patent number: 7824110Abstract: The invention relates to a data transmission cable (10; 20), in particular for motor vehicles, at at least one of whose ends a plastics housing (14; 24) is arranged, said housing having mechanical dimensions in its interface region (30; 32) which conform to the FAKRA standardisation scheme. The data transmission cable (10; 20) has an optical waveguide, wherein a holding member (40) is provided in the plastics housing (14; 24), said holding member being configured for holding an optical imaging element (42) and for connecting the optical imaging element (42) to the optical waveguide.Type: GrantFiled: March 28, 2006Date of Patent: November 2, 2010Assignee: Rosenberger Hochfrequenztechnik GmbH & Co. KGInventors: Bernd Rosenberger, Clemens Wurster
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Publication number: 20100272401Abstract: A field termination kit includes an optical fiber preparation device for preparing an end of an optical fiber, an optical inspection device for inspecting the end of the optical fiber, and a termination assembly for terminating the end of the optical fiber. A method of using a field termination kit includes rotating an end of a first optical fiber about a center of an abrasive portion of an optical fiber preparation tool. The end is pressed against an adhesive portion of the optical fiber preparation tool to clean contaminants from the end. The end is inserted into an inner passage of an optical fiber inspection device for viewing. The end is inserted into a termination assembly. The end is terminated to an end of a second optical fiber in a termination region of the termination assembly.Type: ApplicationFiled: March 9, 2010Publication date: October 28, 2010Applicant: ADC TELECOMMUNICATIONS, INC.Inventor: Wayne M. Kachmar
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Patent number: 7785930Abstract: The present invention relates to affixing components of optical packages. The optical packages can include an optical component, such as a TO-Can. The TO-Can can house an optical transmitter and/or an optical receiver. Another optical component of the optical package can be a barrel for aligning the TO-Can with an optical fiber. The TO-Can can be affixed within an open end of the optical barrel using a bonding substance, such as an epoxy, that has wicking properties. The wicking properties cause the bonding substance to enter a gap between the optical barrel and the TO-Can by capillary action. Use of the bonding substance with wicking properties creates a more robust optical package in a cost effective manner.Type: GrantFiled: August 11, 2008Date of Patent: August 31, 2010Assignee: Finisar CorporationInventor: Christopher William Johnson
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Patent number: RE43542Abstract: An optical fiber terminating assembly has an outer body (10), a first member (11) locatable in the outer body (10) and which carries a protruding length of optical fiber (36) which locates an alignment structure (44, 45) and a housing (12) locatable in alignment with the first member (11). The housing (12) has an access opening for receiving an optical fiber (52, 53) to be terminated so that the fiber can be located in the alignment structure in abutment with the optical fiber length (35). The housing has a compartment (47) which receives a heat responsive adhesive element (57), a saddle (58) and a resistor (59). When a current is passed through the resistor, the heat generated is transmitted by the saddle to the adhesive which melts and flows around the optical fiber (52, 53) to secure it in position in abutment with the optical fiber length (35).Type: GrantFiled: June 11, 2001Date of Patent: July 24, 2012Assignee: ADC GmbHInventors: David Patrick Murray, Ian George, Neil David Elliott