Fiber End Held In Ferrule Patents (Class 385/78)
-
Patent number: 7566176Abstract: A cleaning apparatus (1100) for cleaning an endface (1104) of an optical fiber (1106), wherein a portion of the optical fiber is contained within an interface device (1103) is provided. The cleaning apparatus includes a housing (1114) having an interface portion (1124) adapted to be received by the interface device. The cleaning apparatus further includes a fluid dispensing assembly (1116) at least partially disposed within the housing, wherein at least a portion (1112) of the fluid dispensing assembly engages the endface when the interface portion is received by the interface device. The fluid dispensing assembly is operable to deliver a fluid and a solvent upon the endface when the interface portion of the housing is received by the interface device to aid in the removal of contaminants on the endface. The cleaning apparatus may include a contact cleaning assembly (1304) and/or a microscope (1408).Type: GrantFiled: June 18, 2007Date of Patent: July 28, 2009Assignee: Westover Scientific, Inc.Inventors: Steve Lytle, Kevin G. Cassady, Gregory J. Gerhard
-
Patent number: 7563033Abstract: The invention relates to a housing for fiber-optic plug-in connectors. According to the invention, said housing is configured in at least two parts, one end of a core cable can be positioned in the housing and the position of said cable can be fixed in said housing, at least one housing part is equipped with an opening and the housing part can engage over the core cable in a transversal direction by means of the opening. The invention also relates to a method for laying fiber-optic cables, which can be manufactured with plug-in connectors, whereby at least one end of a core cable is laid in a plug-in station, the end of the core cable is positioned in a housing part, the position of the core cable is fixed in the housing part by at least one second housing part and at least one housing part, which is provided with an opening, engages over the core cable in a transversal direction.Type: GrantFiled: September 10, 2004Date of Patent: July 21, 2009Assignee: ADC GmbHInventors: Jorg Adomeit, Hans-Joachim Faika, Hans-Peter Sandeck
-
Patent number: 7563034Abstract: A casing includes a solid sleeve and a split sleeve in combination to provide a connection between a fiber stub and a ferrule containing an optical fiber. The arrangement prevents wiggle of the ferrule, and also does so without the tight tolerances that would otherwise be required in solid sleeve systems.Type: GrantFiled: September 21, 2007Date of Patent: July 21, 2009Assignee: Opnext, Inc.Inventors: Jianyao Chen, Frank Yashar
-
Patent number: 7559700Abstract: A shading member-equipped optical connector plug is compact while having the compatibility to engage existing connector receptacles. The connector plug includes a shading member having a shutter housing enclosing a plug frame slidably on an outside thereof. The shutter housing is inserted into an engagement opening of a connector receptacle to be engaged when the shading member-equipped optical connector is connected. The shading member also has a shutter one end of which is supported by the shutter housing at a front part of the housing and another end of which is urged by an elastic force and closes so as to shade the optical fibers at a position in front of the ferrule, and an elastic member disposed between the plug frame and the shutter housing that urges the shutter housing forward.Type: GrantFiled: December 18, 2007Date of Patent: July 14, 2009Assignee: Honda Tsushin Kogyo Co., Ltd.Inventors: Toshiaki Eguchi, Naohide Goto, Yasuaki Ohkubo
-
Patent number: 7556436Abstract: The invention relates to an optical connector system including a backpanel and at least one substrate, said substrate having at least one substrate housing assembly and said backpanel having at least one backpanel housing assembly for establishing an optical interface. The substrate housing assembly is attached to said substrate and includes a further housing slidably mounted in a z-direction of said substrate housing assembly. Accordingly no residual forces are exerted on the backpanel after establishment of the optical interface.Type: GrantFiled: February 2, 2005Date of Patent: July 7, 2009Assignee: FCIInventor: Hendrikus Petrus Gijsbertus Van Der Steen
-
Patent number: 7556438Abstract: An angle type optical connector enables a splicing operation of an optical fiber cable accurately and stably without requiring skilled labor and having a superior on-site installation property. An optical connector is provided with a splicing section for securely supporting an incorporated optical fiber securely supported at a ferrule and an optical fiber of an outside optical fiber cable in an end-abutting condition. The body of the optical connector is provided with a cable holding member able to hold an optical fiber cable. The cable holding member can be set at a temporary position where it makes an optical fiber of the optical fiber cable abut against the incorporated optical fiber at the splicing section in the state holding the optical fiber cable and bends a covered optical fiber of the optical fiber cable between the splicing section and the cable holding member by a pressing force in the lengthwise direction.Type: GrantFiled: June 23, 2005Date of Patent: July 7, 2009Assignees: 3M Innovative Properties Company, Nippon Telegraph and Telephone CorporationInventors: Tomayasu Oike, Takaya Yamauchi, Akihiko Yazaki, Tsunetaka Ema, Kenichi Nakazawa, Yasuhiko Hoshino
-
Patent number: 7553089Abstract: An optical connector which is suitable for connection to jacketed cable includes a housing and a ferrule assembly. The ferrule assembly includes a front portion having a first geometry, and the housing includes a receiving portion having a second geometry that mates with the first geometry to prevent rotation of the ferrule assembly relative to the housing. A spring biases the ferrule assembly forward to assist mating of the first and second geometries.Type: GrantFiled: June 15, 2007Date of Patent: June 30, 2009Assignee: Tyco Electronics CorporationInventors: Michael Lawrence Gurreri, Douglas Harold Rohde, Eric James Hopkins, David Donald Erdman
-
Patent number: 7549802Abstract: A fiber optic connector may include a first cover with an integral restraining mechanism and a second cover with a reciprocal restraining mechanism. A fiber optic cable having a ferrule at a terminating end may be placed within the fiber optic connector. A dust cap may be placed on the terminating end of the fiber optic cable. The integral restraining mechanism and the reciprocal restraining mechanism may detachably mate and enclose the terminating end of the fiber optic cable within the fiber optic connector. The fiber optic connector may include one or more gaskets to assist in sealing the connector.Type: GrantFiled: June 28, 2007Date of Patent: June 23, 2009Assignee: Verizon Services Corp.Inventors: George N. Bell, Richard D. Pinsonneault, John L. Carey, Jr., Kevin N. Smith, William R. Belben
-
Patent number: 7547148Abstract: In a connectored optical fiber sheet according to the present invention, a connector is fitted around both optical fibers and sheet base.Type: GrantFiled: July 17, 2007Date of Patent: June 16, 2009Assignee: Mitsubishi Cable Industries, Ltd.Inventor: Shogo Ikunishi
-
Patent number: 7540668Abstract: A transparent ferrule is fused to an end of an optical fiber to increase the coupling area without altering the input numerical aperture of the fiber system. This is accomplished by controlling the length of the area at which the transparent ferrule is fused or welded. In addition, an extended ferrule portion is situated behind the fusion area and is separated from the fiber core such that light that fails to couple to the core is reflected from the inner diameter of the extended ferrule portion away from the fiber core, where it can be deflected or dissipated by a beam block or absorptive material. The transparent ferrule is formed from a plurality of relative thin wall ferrules that are successively fused from the side to form at the least the termination or coupling end of the transparent ferrule.Type: GrantFiled: December 21, 2007Date of Patent: June 2, 2009Inventor: Joe D. Brown
-
Publication number: 20090129729Abstract: A fiber optic stub fiber connector for reversibly and nondestructively terminating an inserted field fiber having a buffer over at least a portion thereof. The connector includes a housing and a ferrule including a stub fiber disposed within and extending from a bore through the ferrule. The ferrule is generally at least partially disposed within and supported by the housing. The connector further includes a reversible actuator for reversibly and nondestructively terminating the inserted field fiber to the stub fiber. The reversible actuator includes a buffer clamp for engaging with the buffer to simultaneously provide reversible and nondestructive strain relief to the terminated field fiber.Type: ApplicationFiled: January 20, 2009Publication date: May 21, 2009Applicant: PANDUIT CORP.Inventors: Jack E. Caveney, Shaun P. Brouwer, Vincent M. Barone, Scott R. Hartman, Andrew J. Stroede
-
Patent number: 7534051Abstract: The present invention relates to a low-cost attachable/detachable optical fiber connector, and the like. The optical fiber connector comprises first and second fiber connecting members. The first fiber connecting members has a ferrule that holds a first optical fiber in its inserting hole in a slidable state, a housing that covers the first optical fiber, and a fixing member that fixes the inserted first optical fiber to the housing behind the ferrule so as not to protrude out from the ferrule. The second fiber connecting members has a housing that has a ferrule engaging portion having a recess therein and an optical fiber holding portion that holds a second optical fiber in its inserting hole in a slidable state, and a fixing member that fixes the inserted second optical fiber to the housing behind the optical fiber holding portion so as to protrude into the recess from the optical fiber holding portion.Type: GrantFiled: April 10, 2007Date of Patent: May 19, 2009Assignee: Sumitomo Electric Industries, Ltd.Inventors: Daizo Nishioka, Kenichiro Ohtsuka, Toshifumi Hosoya
-
Patent number: 7534115Abstract: Systems and methods for securing a keyed fiber optic network assembly are provided. A typical network system includes an assembly having a security feature and adapted to facilitate fiber optic communication between two mating fiber optic connectors. The security feature is uniquely keyed to disengaged when mated with a corresponding uniquely keyed connector. The security feature includes at least an inner door and a spring and is adapted to prevent optical communication and mating with a receiving connector during illegitimate connector insertion. A typical network includes a plurality of assemblies each having a uniquely keyed security feature. Each of the plurality of assemblies is color coded to match with a legitimate color coded connector to provide guidance to a network user. The connector and the security feature are uniquely keyed through unique positioning of protruding bosses.Type: GrantFiled: May 20, 2008Date of Patent: May 19, 2009Assignee: Ortronics, Inc.Inventors: Adam Murano, Chester Rynaski
-
Patent number: 7530746Abstract: An optical fiber terminating assembly includes a housing, which can receive an optical fiber to be terminated so that it is located in alignment with a length of another optical fiber, or an optoelectronic device, a heat responsive adhesive element, and a thermally conductive element. The housing includes a compartment through which the optical fiber to be terminated can extend. The heat responsive adhesive element is disposed in the compartment and includes at least one pathway preformed dispose in the heat responsive adhesive element. A portion of the optical fiber is disposed in the pathway. The thermally conductive element is disposed in the compartment and is coupleable to a source of energy so that heat in the thermally conductive element causes the heat responsive adhesive element to soften and adhere to the optical fiber in the channel to secure it in position.Type: GrantFiled: April 13, 2007Date of Patent: May 12, 2009Assignee: ABC Telecommunications, Inc.Inventor: Wayne M. Kachmar
-
Publication number: 20090116791Abstract: A coupling device includes a first coupling element having a first passage, and an end section connected to the free end of the light guide; as well as a second coupling element with a second passage for holding/fixing an intermediate section following the end section of the light guide. In one implementation, the first coupling element and the second coupling element can be detachably joined in a coupled state, where the first passage and the second passage form a common passage and/or have (or surround) a common longitudinal axis. The first passage can be configured with a funnel-shaped section that, in the coupled state, the first passage faces the second passage and widens toward the second passage. In addition, the first coupling element may be formed from ceramic material at least on its inner surface in the region of the funnel-shaped section.Type: ApplicationFiled: October 29, 2008Publication date: May 7, 2009Applicant: A.R.C. LASER GMBHInventor: Reinhardt Thyzel
-
Publication number: 20090116793Abstract: An optical connector of a fitting pin positioning type includes multiple optical fiber insertion holes arranged in one row and fitting holes or fitting pins. The fitting holes or the fitting pins for positioning are respectively disposed on mutually opposite sides of a straight line connecting centers of the optical fiber insertion holes and are located point-symmetrically with respect to a center of the row of the entire optical fiber insertion holes arranged on the straight line.Type: ApplicationFiled: October 28, 2008Publication date: May 7, 2009Applicant: FUJIKURA LTD.Inventors: Akito NISHIMURA, Kunihiko FUJIWARA, Tatsuya OHTA, Kenji SASAKI, Yukio HAYASHI
-
Patent number: 7527435Abstract: A right-angle optical-fiber connector assembly for providing an optical connection to an external device such as a circuit board. The connector assembly includes a rigid ferrule having at least one right-angle bend and that defines an interior region and first and second ferrule ends, and a maximum optical fiber bending radius RMAX. One or more bend-performance optical fibers traverse the interior region. Each optical fiber has an associated minimum bending radius RMIN and includes a bending radius RF such that RMIN?RF?RMAX, wherein at least one of the one or more optical fibers has RF=RMIN. The first and second connector ends are respectively located at or near the first and second ferrule ends and operably support the first and second optical fiber ends. The connector ends are each adapted to provide an external optical interconnection to an external device such as a circuit board.Type: GrantFiled: March 29, 2007Date of Patent: May 5, 2009Assignee: Corning Cable Systems LLCInventors: David Lee Dean, Jr., Dennis Michael Knecht, Thomas Theuerkorn
-
Patent number: 7527434Abstract: A connecting member which is formed by filling a mold with a resin composition and then solidifying the resin composition, the connecting member having one end face in which a plurality of fine holes of a ? or less are arrayed in a row with a pitch P therebetween, and guide pin insertion holes are formed on either side of the fine holes, wherein the resin composition is comprised of a resin and a filler mixed therein, and wherein the space (P?a) between the fine holes meets the following formula; Dm<(P?a)<Dmax, in which Dmax represents the largest diameter of the filler particles, and Dm represents the most frequent diameter of the filler particles.Type: GrantFiled: September 26, 2005Date of Patent: May 5, 2009Assignee: The Furukawa Electric Co., Ltd.Inventors: Yasuhiro Naka, Shinpei Todo, Takashi Shigematu, Takayuki Ando, Yoshimi Ono
-
Patent number: 7524117Abstract: To extend the service life of a latch of a plug housing and facilitate assembly and aligning operations of an optical connector. The optical connector includes a latch provided in a cantilever form on an external surface of the optical connector and deformable for attachment/detachment with respect to an adaptor, and an excessive deformation preventing unit that prevents excessive deformation of the latch.Type: GrantFiled: September 16, 2007Date of Patent: April 28, 2009Assignee: Seikoh Giken Co., LtdInventor: Atsuhiro Terakura
-
Patent number: 7526162Abstract: An epoxy-free collimator assembly is configured with a ferrule and a lens operative to move within an outer case to a desired position therebetween. The collimator assembly further has an aligning component made from soft, malleable material which is capable of filling out the radial space between the ferrule and case so as to spatially fix the aligned fiber held in the ferrule and lens in the desirable position.Type: GrantFiled: February 27, 2008Date of Patent: April 28, 2009Assignee: IPG Photonics CorporationInventors: Yuri Grapov, William D. Jones
-
Publication number: 20090097801Abstract: An optical ferrule includes a positioning block and a ferrule main body. The ferrule main body is integrally formed by molding a resin over the positioning block. The positioning block includes an optical fiber insertion hole formation portion having optical fiber insertion holes and guide pin hole formation portions which are provided on both sides of the positioning block and which have guide pin holes. On a front end side of the ferrule main body, the positioning block is disposed. The ferrule main body has a hollow part on its rear end side.Type: ApplicationFiled: October 2, 2008Publication date: April 16, 2009Applicant: FUJIKURA LTD.Inventors: Akito NISHIMURA, Kunihiko FUJIWARA, Takahiko SABANO
-
Patent number: 7513695Abstract: An optical fiber connector includes a connector housing, a ferrule and a clamping assembly. The connector hosing has a front end and a rear end. The ferrule is disposed in the connector housing and projects from the front end of the connector housing. The clamping assembly is disposed in the connector housing for mounting the ferrule, and includes a hollow housing and a cam member, wherein the cam member includes a groove adapted to clamp a terminating fiber when a cam effect between the hollow housing and the cam member is generated and further the cam effect causes the groove of the cam member to generate a clamping force.Type: GrantFiled: October 9, 2007Date of Patent: April 7, 2009Assignees: Protai Photonic Co., Ltd., Senko Advanced Components, IncInventors: I En Lin, Tomoyuki Mamiya
-
Patent number: 7510335Abstract: An exemplary optical connector 200 includes a first housing 20 and a second housing 24. The first housing 20 includes a main body 201. The main body 201 is elongated and hollow. One end of the main body 201 forms a resisting member 203 and the other end of the main body 201 forms a lock receiving portion 205. At least one latch hole 2051 is defined in the lock receiving portion 205 and at least one joint line 208 is formed in the lock receiving portion 205 adjacent to the at least one latch hole 2051. The extending direction of the joint line 208 is perpendicular to the longitudinal direction of the first housing 20. One end of the second housing 24 forms a lock portion 242 configured for engaging with the lock receiving portion 205. The lock portion 242 forms at least one protrusion 2423 configured for engaging with the latch hole 2051.Type: GrantFiled: June 9, 2008Date of Patent: March 31, 2009Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Bing Su, Li-Jun Yang, Hao-Zhuan Lin, Xiao-She Bian
-
Patent number: 7507031Abstract: To provide a fusion-spliced optical connector capable of easily performing a fusion-splicing operation at an actual site in a short time, without need to perform additional special operations. An optical connector component is configured to attach a short-length optical fiber to a ferrule including a capillary and a flange. The capillary comprises a minute through hole and a coated-portion storage hole formed in the capillary, the minute through hole to be stored therein the bare optical fiber portion of the short-length optical fiber and the coated-portion storage hole to be stored therein a part of a coated optical fiber portion of the short-length optical fiber continuous to the bare optical fiber portion. The flange includes a coated-portion penetrating hole formed in the flange to be penetrated therein a very short portion continuous to the part of the coated optical fiber portion stored in the coated-portion storage hole.Type: GrantFiled: August 6, 2007Date of Patent: March 24, 2009Assignee: Seikoh Giken Co., Ltd.Inventor: Yasunari Kawasaki
-
Publication number: 20090074361Abstract: A fiber optic connector having a double-clad specialty optical stub fiber with a deep index core-to-inner-cladding profile and a raised index outer-cladding profile. The double-clad optical stub fiber abuts against a single-clad field optical fiber of the single-mode type to form an interface across which the primary mode traverses without significantly interfering with higher-order modes. The ratio of the radius of the inner cladding to the radius of the core of the stub fiber is less than 6.5:1. The index profile of the refractive index of the inner cladding is deep relative to the refractive index of the core to confine the primary mode within the core. The raised refractive index of the outer-cladding pulls the higher-order modes deeper into that region, reducing interference with the primary mode. The respective core diameters of the field and stub fibers are matched to avoid mode-field diameter mismatch.Type: ApplicationFiled: November 24, 2008Publication date: March 19, 2009Applicant: PANDUIT CORP.Inventors: Richard J. Pimpinella, Albert Brunsting
-
Publication number: 20090074360Abstract: To provide an optical connector kit in which all connector parts contained in a containing case, wherein said connector parts includes a ferrule equipped with an optical fiber employed, in which a short length optical fiber is fixed to the ferrule and the ferrule is subjected to polishing at the terminal end thereof in advance. The optical connector kit, wherein said kit comprises a ferrule with an optical fiber comprising a short length optical fiber which has been fixed to the ferrule in advance, in which the ferrule is subjected to polishing treatment at the terminal surface thereof; a plurality of connector parts which are passed through said optical fiber before the rear end of said short length optical fiber and the front end of another optical fiber are subjected to fusion splice each other; and a containing case for receiving all connector parts constructing an optical connector including said ferrule with the optical fiber and said passing parts.Type: ApplicationFiled: September 10, 2008Publication date: March 19, 2009Applicant: SEIKOH GIKEN CO., LTD.Inventor: Yasunari Kawasaki
-
Patent number: 7503702Abstract: Fiberoptic connector and adapter assembly includes a fiberoptic connector received within an adapter. The connector has a cover on the connector housing. The cover pivots between open and closed positions to expose or cover, respectively, a optical fiber contained within the connector. Longitudinal guides of the connector are received cooperating with longitudinal guides of the adapter to direct the connector into the adapter in a prescribed alignment. A cam pin is carried on the adapter to engage a cam pin receiving slot on the cover to urge the cover to the open position as the connector is inserted into the adapter.Type: GrantFiled: April 29, 2008Date of Patent: March 17, 2009Assignee: ADC Telecommunications, Inc.Inventor: Liang-Ju Lu
-
Patent number: 7505654Abstract: There is provided a mechanical connector for mechanically connecting and optically coupling two optical fiber ends, the connector comprising a longitudinal body, and a fiber conduit in the body for holding the two fiber ends and confining the fibers to be in end to end alignment in the conduit with sufficient inward radial pressure exerted from the conduit on each one of the fiber ends to ensure centering within the fiber conduit to provide the optical coupling without risking damage to a silica core of the fiber ends. The connector is adapted to controllably release the pressure on the fibers to allow for insertion of the fibers in the conduit, and the connector holds the fiber ends in the optical coupling without adhesive. There is further provided a method for mechanically connecting and optically coupling two optical fiber ends.Type: GrantFiled: May 4, 2006Date of Patent: March 17, 2009Inventors: Daniel Demissy, Eric Weynant
-
Patent number: 7500789Abstract: A fibre optic coupler assembly for optically aligning a sectioned fibre optic cable, the cable having a first end and a second end and comprising one or more fibre optic cores. The assembly comprises a first holder for holding the first end; a second holder for holding the second end coupled to the first end; a retractor for retracting the second end; an aligning unit comprising a resilient construction having a conduit passing through it, for linear alignment of the ends; whereby the first and second ends are coupled by the respective holders and whereby the second end can be linearly aligned in the conduit of the aligning unit, retracted using the retractor, and rotated to obtain rotational alignment of the fiber cores of the ends.Type: GrantFiled: September 18, 2003Date of Patent: March 10, 2009Assignee: BioScan Ltd.Inventors: Ilan Grunberg, Avram Matcovitch
-
Publication number: 20090060422Abstract: A one-piece LC type optical fiber adapter is provided. The LC type adapter of the present invention has fewer parts than a conventional one. Therefore, it is simpler and easier to assemble the LC type adapter of the present invention. In addition, the main body of the LC type adapter is unitary thereby avoiding the prior art problem that the stresses cause the two halves of the adapter to separate from each other after time.Type: ApplicationFiled: August 27, 2008Publication date: March 5, 2009Applicants: PROTAI PHOTONIC CO. LTD., SENKO ADVANCED COMPONENTS, INC.Inventors: I. En LIN, Tomoyuki Mamiya
-
Patent number: 7494399Abstract: A fiber grinding process includes: contacting an end of the optical fiber with a grinding surface in such a manner that a central axis of the optical fiber at the end is inclined to the grinding surface; rotating the optical fiber about the central axis; and changing a contact pressure between the end of the optical fiber and the grinding surface by applying a variable torque while rotating the optical fiber. A substantially cone-shaped end face with a substantially elliptic cross-section may be produced. A fiber grinding apparatus is also disclosed.Type: GrantFiled: July 3, 2007Date of Patent: February 24, 2009Assignee: National Sun Yat-Sen UniversityInventors: Ying-Chien Tsai, Yu-Kuan Lu, Yu-Da Liu, Wood-Hi Cheng
-
Patent number: 7490997Abstract: A connector (10) comprising: a housing 11 having a front and rear orientation; a ferrule (12) disposed in the front of the housing and containing at least one fiber, a resilient member (13) disposed in the housing rearward of the ferrule (12); and a bendlimiter (14) disposed in the housing rearward of the resilient member, the bend limiter comprising a crimp portion (21) for interengaging the housing such that the bend limiter position with respect to the housing (11) is fixed, the crimp portion providing a backstop for compressing the resilient means (13) against the ferrule to urge the ferrule forward, the bend limiter also comprising an arcuate portion for dressing the fiber, the arcuate portion having a radius no less than the minimum bend radius of the fiber.Type: GrantFiled: June 12, 2002Date of Patent: February 17, 2009Inventor: Robert Verhagen
-
Patent number: 7488116Abstract: It is often desirable to efficiently couple laser foci that are dimensionally large to dimensionally small optical fibers. A fiber fused in a lower refractive index fiber is disclosed. The fiber/ferrule construct is characterized by having no taper of the fiber in the ferrule and a negative lens shape at a fiber/ferrule face. This construct enable the coupling of imparting rays that fall outside of the fiber core into the transmission path of the fiber. Where the laser systems are integrated in a manner that precludes altering the focusing optic, such as in surgical laser systems, or where the laser's beam focal properties are such that reducing the focal spot diameter is impractical for fiber coupling, modification of the optical fiber input geometry offers a means of customizing the laser-to-fiber interface for applications involving different fiber diameters.Type: GrantFiled: November 30, 2005Date of Patent: February 10, 2009Inventor: Griffin Steve
-
Patent number: 7481586Abstract: The present disclosure relates to a fiber optic connector for use with a fiber optic adapter. The fiber optic connector includes a connector housing having an end defining a plug portion. A ferrule assembly is mounted at least partially within the connector housing. The ferrule assembly includes a ferrule located at the plug portion of the connector housing. A sealing member is mounted about an exterior of the connector housing for providing a seal between the connector housing and the adapter. The fiber optic connector further includes first and second separate retaining mechanism for retaining the fiber optic connector within the fiber optic adapter.Type: GrantFiled: January 24, 2007Date of Patent: January 27, 2009Assignee: ADC Telecommunications, Inc.Inventors: Yu Lu, Randy Reagan
-
Patent number: 7479664Abstract: Fiber optic phototherapy devices include fiber optic light emitters having fiber optic end portions at one or both ends that may be separated into a plurality of groups of end portions that receive light from one or more light emitting diodes (LEDs). Lenses may be used to focus the light from one or more LEDs onto the end portions. The LEDs may be mounted to a heat sink to dissipate any excess heat generated by the LEDs.Type: GrantFiled: September 7, 2007Date of Patent: January 20, 2009Assignee: Lumitex Inc.Inventor: Jeffrey B. Williams
-
Publication number: 20090016683Abstract: An angle-polished optical fiber may be mounted relative to a laser at an off-axis angle to allow coupled light from a laser to be substantially aligned with the axis of the fiber core. An angled fiber ferrule may facilitate providing the off-axis angle when coupling the angle-polished optical fiber to a laser package. The angled fiber ferrule includes a through hole including at least a portion that is off-axis. The axis of the off-axis portion of the through hole is angled at the off-axis angle with respect to an axis of the ferrule body portion.Type: ApplicationFiled: July 10, 2007Publication date: January 15, 2009Applicant: APPLIED OPTOELECTRONICS, INC.Inventors: Jun Zheng, Chung-Yung Wang
-
Publication number: 20090016684Abstract: A device and method of blocking customer access to a fiber optic distribution cable. A service blocker is positioned between a fiber distribution cable and a customer drop cable within a fiber optic adapter. The service blocker includes a body which does not permit optical transmission between the fiber distribution cable and the customer drop cable. The service blocker includes a first end configured to be inserted within the fiber optic adapter and a second end configured connect with a fiber optic cable connector. A system for mounting fiber optic cables including a service blocker positioned within a bulkhead mounted adapter between two fiber optic cables.Type: ApplicationFiled: March 31, 2008Publication date: January 15, 2009Applicant: ADC Telecommunications, Inc.Inventor: Ronald A. Beck
-
Patent number: 7476035Abstract: A hermaphroditic connector for mounting to a cable having a plurality of optical fibers and connecting the fibers to mating optical fibers wherein the optical fibers and mating optical fibers have termini mounted to the respective ends thereof, and wherein the termini of at least one of the optical fibers is slidably mounted and biased to provide a predetermined amount of longitudinal travel during connection includes a plug insert for mounting the termini, a generally cylindrical plug body for receiving the plug insert through an open end thereof, the plug body including a mating end with a plurality of mating features configured to cooperate with corresponding mating features of a second connector to align the termini of the first and second connectors in opposed relationship, a plurality of ears extending radially from the mating end of the plug body, a coupling nut slidably mounted on the plug including a groove formed between a plurality of ribs extending around an inside nut so that rotation of the coupType: GrantFiled: April 12, 2007Date of Patent: January 13, 2009Assignee: Fiber Systems InternationalInventors: Bryan D. Cull, Jon M. Woodruff, Jamie Castillega
-
Publication number: 20080317416Abstract: An optical fiber includes a core, a clad formed around the core, a plurality of holes being formed in the clad, and a UV curing optically-transparent resin which is filled in the holes and hardened. The UV curing optically-transparent resin has a Young's modulus of 8 to 500 MPa after hardening.Type: ApplicationFiled: November 16, 2007Publication date: December 25, 2008Inventors: Yoshinori Kurosawa, Kazumasa Ohsono, Yoshihisa Kato
-
Patent number: 7469091Abstract: An optical fiber termination apparatus includes a body portion having an optical fiber outlet therein and a connector receiving portion extending from the body portion and having an outer wall defining an optical fiber connector receiving chamber and having an opening to the connector receiving chamber at an end thereof spaced from the body portion. An optical connector is positioned in the opening, wherein the opening is configured to receive the optical connector therein without rotating the optical connector relative to the connector receiving portion. A sealing member is positioned between the optical connector and the outer wall of the connector receiving portion to seal a gap therebetween.Type: GrantFiled: December 21, 2005Date of Patent: December 23, 2008Assignee: Tyco Electronics CorporationInventors: Julian Mullaney, Roy Keller Thompson, William Alan Carrico
-
Patent number: 7467896Abstract: A preconnectorized outdoor cable streamlines the deployment of optical waveguides into the last mile of an optical network. The preconnectorized outdoor cable includes a cable and at least one plug connector. The plug connector is attached to a first end of the cable, thereby connectorizing at least one optical waveguide. The cable has at least one optical waveguide, at least one tensile element, and a cable jacket. Various cable designs such as figure-eight or flat cables may be used with the plug connector. In preferred embodiments, the plug connector includes a crimp assembly having a crimp housing and a crimp band. The crimp housing has two half-shells being held together by the crimp band for securing the at least one tensile element. When fully assembled, the crimp housing fits into a shroud of the preconnectorized cable. The shroud aides in mating the preconnectorized cable with a complimentary receptacle.Type: GrantFiled: October 31, 2007Date of Patent: December 23, 2008Assignee: Corning Cable Systems LLCInventors: Stuart R. Melton, David A. Thompson, Michael J. Gimblet, Hieu V. Tran, Richard S. Wagman, Xin Liu
-
Publication number: 20080310797Abstract: An optical connector and a method of assembling an optical connector that is capable of avoiding generation of unnecessary tension in the optical fiber cable in which plain fiber portions are optically connected to each other using a splice assembly. The optical connector comprises a connector housing having splice means configured to abut a stripped and cleaved end surface of a plain fiber of an optical fiber cable (2) onto an end of a fiber stub predisposed in the splice means to form an optical connection; and a cable fixing assembly (26, 40), that includes a cable fixing member (26) and a cable holder (40), for fixing an outer covering (2c) of the optical fiber cable (2) introduced into said connector housing (10).Type: ApplicationFiled: October 27, 2006Publication date: December 18, 2008Inventors: Akihiko Yazaki, Tomoyasu Oike, Takaya Yamauchi
-
Patent number: 7465106Abstract: An optical receptacle includes: a fiber stub having a ferrule and an optical fiber in a through-hole of the ferrule; a holder to which an rear end of the fiber stub is fixed; and a sleeve for holding a plug ferrule in front of the fiber stub; wherein a grip ring is provided on an outer side face in which the fiber stub and the sleeve are overlapped to each other, whereby attaining the shortened optical receptacle, and improving connection loss due to tilting of the plug ferrule, and obtaining good repeatability of the connection loss.Type: GrantFiled: June 28, 2004Date of Patent: December 16, 2008Assignee: Kyocera CorporationInventors: Hiroki Ito, Tsuyoshi Tanaka, Toshiyuki Matsumoto
-
Publication number: 20080292248Abstract: An optical fiber includes a core, a clad having a plurality of air holes at a periphery of the core, and a hardening resin filled in a sealed portion at an end of the plurality of air holes. The hardening resin after hardening has a fill length of 7 mm to 8 mm. An optical fiber connection structure includes the optical fiber with an end face butt-connected to another optical fiber. An optical connector includes the optical fiber, and a ferrule to which the optical fiber is attached.Type: ApplicationFiled: February 1, 2008Publication date: November 27, 2008Applicant: HITACHI CABLE, LTD.Inventors: Kanako Suzuki, Bing Yao, Kazumasa Ohsono, Yoshihisa Kato
-
Publication number: 20080292244Abstract: An optical fiber includes a core, a clad formed around the core, a plurality of holes being formed in the clad, and a hardening resin having a moisture permeability equal to or less than 0.5 g/cm2ยท24 hr, in which the hardening resin is filled in a vicinity of an end face of the holes.Type: ApplicationFiled: November 15, 2007Publication date: November 27, 2008Applicant: HITACHI CABLE, LTD.Inventors: Yoshihisa Kato, Kanako Suzuki, Yoshinori Kurosawa, Kazumasa Ohsono
-
Patent number: 7455460Abstract: A fiber optic connector having a double-clad specialty optical stub fiber with a deep index core-to-inner-cladding profile and a raised index outer-cladding profile. The double-clad optical stub fiber abuts against a single-clad field optical fiber of the single-mode type to form an interface across which the primary mode traverses without significantly interfering with higher-order modes. The ratio of the radius of the inner cladding to the radius of the core of the stub fiber is less than 6.5:1. The index profile of the refractive index of the inner cladding is deep relative to the refractive index of the core to confine the primary mode within the core. The raised refractive index of the outer-cladding pulls the higher-order modes deeper into that region, reducing interference with the primary mode. The respective core diameters of the field and stub fibers are matched to avoid mode-field diameter mismatch.Type: GrantFiled: March 8, 2007Date of Patent: November 25, 2008Assignee: Panduit Corp.Inventors: Richard J. Pimpinella, Albert Brunsting
-
Patent number: 7448809Abstract: The present invention provides a method of manufacture that minimizes the lateral offset of a plurality of optical fiber holes associated with a multi-fiber ferrule, including: determining an initial offset distance of each of the plurality of optical fiber holes from each of a plurality of corresponding target locations on an initial endface; removing a predetermined amount of material from the multi-fiber ferrule to form a subsequent endface; determining a subsequent offset distance of each of the plurality of optical fiber holes from each of the plurality of corresponding target locations on the subsequent endface; and, using the initial offset distance and the subsequent offset distance, determining an angle of each of the plurality of optical fiber holes relative to the initial endface.Type: GrantFiled: February 28, 2007Date of Patent: November 11, 2008Assignee: Corning Cable Systems, LLCInventors: Joseph Todd Cody, David Lee Dean, Jr., Alan John Malanowski, Scott Timothy Schmidt
-
Publication number: 20080273841Abstract: A plastic ferrule (1) for optical connecting systems, in which a optical wave guide (3) of an optical fibre (6) is guided through a support element (2), whereby the optical wave guide (3) is surface-conditioned in a partial area (4) in order to bond in a force-actuated way to a hardened casting mass (5) in this partial area (4).Type: ApplicationFiled: April 21, 2005Publication date: November 6, 2008Inventors: Werner Leutwyler, Giorgio Friedrich, Oliver Eckstein, Rolf Weber
-
Patent number: 7441962Abstract: A multi-channel fiber optic cable connector is provided for connecting the terminal ends of fiber optic cables utilizing alignment sleeves to align the adjacent termini of optical fibers included within respective ones of the cables. A retention mechanism, a sleeve retainer, secured within the connector, is provided that secures the alignment sleeve within the connector. In another aspect, a single floating seal assembly extends around a termini and seals between the termini and a connector housing. The single seal assembly provides a dual sealing function, sealing between an aperture of a floating collar and the termini body and sealing between the floating collar and a seal surface of a bore in the connector housing.Type: GrantFiled: June 22, 2006Date of Patent: October 28, 2008Assignee: Applied Optical Systems, Inc.Inventors: Venkata R. Penumatcha, Vincent A. Wouters
-
Patent number: RE40622Abstract: A fiber optic connector has two ferrules contained within a single connector housing with the ferrules positioned in parallel, spaced-apart alignment. The connector includes a first mating fastener exposed on exterior sides of the connector housing. A fiber optic adapter has an open end to slidably receive the connector housing. The adapter includes two parallel sleeves contained within the adapter housing and aligned with the ferrules of the connector. The adapter includes a second mating fastener exposed to an interior of the adapter housing to releasably mate with the first mating fastener when the connector housing is in the full insert position.Type: GrantFiled: October 26, 2001Date of Patent: January 13, 2009Assignee: ADC Telecommunications, Inc.Inventor: Liang-Ju Lu