Patents Issued in August 17, 2017
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Publication number: 20170235045Abstract: A single mode optical fiber having a core made from silica and less than or equal to about 11 weight % germania and having a maximum relative refractive index ?1MAX. The optical fiber also has an inner cladding surrounding the core and having a minimum relative refractive index ?2MIN, a first outer cladding surrounding the inner cladding and a second outer cladding surrounding the first outer cladding. The viscosity at 1650° C. of the second outer cladding minus the viscosity at 1650° C. of the first outer cladding is greater than 0.1e7 Poise, and ?1MAX>?2MIN. The single mode optical fiber may also have an outer cladding surrounding the inner cladding made from silica or SiON. The first outer cladding has a maximum relative refractive index ?3MAX, and ?3MAX>?2MIN.Type: ApplicationFiled: May 4, 2017Publication date: August 17, 2017Inventors: Dana Craig Bookbinder, Ming-Jun Li, Pushkar Tandon
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Publication number: 20170235046Abstract: A compact, low-loss and wavelength insensitive Y-junction for submicron silicon waveguides. The design was performed using FDTD and particle swarm optimization (PSO). The device was fabricated in a 248 nm CMOS line. Measured average insertion loss is 0.28±0.02 dB across an 8-inch wafer. The device footprint is less than 1.2 ?m×2?m, orders of magnitude smaller than MMI and directional couplers.Type: ApplicationFiled: March 1, 2017Publication date: August 17, 2017Inventors: Yang Liu, Yangjin Ma, Ruizhi Shi, Michael J. Hochberg, Yi Zhang, Shuyu Yang, Thomas Wetteland Baehr-Jones
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Publication number: 20170235047Abstract: A waveguide 10 includes first core portions (cores 210) extending in a first direction (an x-axis direction), at least one second core portion (dummy cores 220) which is provided parallel to the first core portions (the cores 210) and extends in the first direction (the x-axis direction), and clad portions 230 that separate the first core portions (the cores 210) and the second core portions (the dummy cores 220), and the second core portion (the dummy core 220) has first regions (wave guide regions 240) having a substantially constant cross-sectional area and second regions (first light-shielding regions 252 and second light-shielding regions 254) which are continuously provided from at least one end of the first region (the wave guide region 240) and has a cross-sectional area that decreases as the second region runs farther away from the first region (the wave guide region 240). Therefore, the transmission of optical signals in the second core portions (the dummy cores) is prevented.Type: ApplicationFiled: July 31, 2015Publication date: August 17, 2017Applicant: SUMITOMO BAKELITE CO., LTD.Inventors: Katsuma KITAZOE, Sho KUBOTA, Masaaki KATO
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Publication number: 20170235048Abstract: A semiconductor waveguide optical device and a method of manufacturing of a semiconductor optical device are disclosed. The semiconductor waveguide optical device may include a gradient index waveguide for mode conversion and/or vertical translation of optical modes of step-index waveguides, which may be disposed on or over a same substrate as the gradient index waveguide. The gradient index waveguide may be epitaxially grown.Type: ApplicationFiled: February 27, 2017Publication date: August 17, 2017Inventors: John M. HEATON, Oleg BOUEVITCH
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Publication number: 20170235049Abstract: Optical fiber assemblies for filtering of higher-order modes include a winding support and an optical fiber wound along a winding path on the winding support. The optical fiber is configured to support a fundamental transverse mode and one or more higher-order transverse modes. The optical fiber has a longitudinal fiber axis, a core, a cladding surrounding the core, a transverse cross-section lacking circular symmetry, and a rotation imparted thereto about the longitudinal fiber axis. The rotation and winding of the optical fiber provide stronger attenuation of the one or more higher-order transverse modes as compared to the fundamental transverse mode. In some implementations, the winding path has a non-constant radius of curvature. In other implementations, the optical fiber has a diameter larger than 10 micrometers and at least one stress-applying part arranged in the cladding about the core. Methods perform higher-order-mode filtering.Type: ApplicationFiled: February 3, 2017Publication date: August 17, 2017Applicant: INSTITUT NATIONAL D'OPTIQUEInventors: Marc DELADURANTAYE, Claude PARÉ, Pierre LAPERLE
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Publication number: 20170235050Abstract: An optical fiber cutting apparatus includes a fixing member configured to fix a glass fiber portion of an optical fiber, a blade member configured to form a flaw on the glass fiber portion, and a position adjusting portion configured to adjust a relative position of the blade member with respect to the glass fiber portion that is fixed by the fixing member. The position adjusting portion includes a rotational shaft and an eccentric cam region, the eccentric cam region including an arc having a rotational center different from a rotational center of the rotational shaft. The relative position of the blade member is changed in accordance with a position of an outer peripheral portion of the eccentric cam region.Type: ApplicationFiled: February 6, 2017Publication date: August 17, 2017Applicant: SEI OPTIFRONTIER CO., LTD.Inventors: Shinsuke KURINO, Yoshiyuki NISHIZAWA
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Publication number: 20170235051Abstract: An optical fiber cutting apparatus includes a body portion on which an optical fiber is mounted, a cover member that is rotatably connected to the body portion and fixes the optical fiber between the body portion and the cover member by rotating toward the body portion, a blade member configured to form a flaw on a glass fiber portion of the optical fiber which is fixed, and a holding member mounted on the body portion, the holding member configured to hold the blade member. The cover member presses the holding member and thereby the blade member imparts an arc movement to form the flaw on the glass fiber portion.Type: ApplicationFiled: February 8, 2017Publication date: August 17, 2017Applicant: SEI OPTIFRONTIER CO., LTD.Inventors: Shinsuke KURINO, Hiroshi TAKAYANAGI, Yoshiyuki NISHIZAWA, Masahiro HASEGAWA
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Publication number: 20170235052Abstract: An optical fiber holder includes a holder main body, a V-groove which is formed on an upper surface of the holder main body and accommodates a first optical fiber, a recessed groove which is formed on a same straight line with the V-groove and accommodates a second optical fiber having a coating portion with a larger outer diameter than the first optical fiber, and an abutting portion which is provided on an end portion of the recessed groove on an opposite side to the V-groove and includes an opening portion which has a smaller width than the recessed groove. When the second optical fiber is accommodated in the recessed groove, a fiber core wire of the second optical fiber protrudes to an outside via the opening portion and an end portion of the coating portion of the second optical fiber abuts on the abutting portion.Type: ApplicationFiled: February 10, 2017Publication date: August 17, 2017Applicant: SEI OPTIFRONTIER CO., LTD.Inventors: Shinsuke KURINO, Hiroshi TAKAYANAGI
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Publication number: 20170235053Abstract: A fusion splicer includes: a first gear including a first eccentric cam unit; a first rotating member including a first main body having a first abutting surface abutting on the first eccentric cam unit, a first arm unit extending from the first main body and rotatably supported by a main base, and a second arm unit extending from the first main body; a second gear including a second eccentric cam unit; and a second rotating member including a second main body having a second abutting surface abutting on the second eccentric cam unit, a third arm unit extending from the second main body and rotatably supported by the second arm unit, a fourth arm unit extending from the second main body, and a placing unit at a tip end of the fourth arm unit with a groove for receiving one of optical fibers.Type: ApplicationFiled: February 3, 2017Publication date: August 17, 2017Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Tomohiro AKIYAMA, Hisanori YONENAGA
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Publication number: 20170235054Abstract: On a top face (24a) of a base member (3), V-shaped grooves (15a) and (23a) are provided. On a reverse face (24b) of a base member (3), V-shaped grooves (15b) and (23b) are provided. The V-shaped grooves (15a) and (15b), which are first V-shaped grooves and are for holding optical fibers, and the V-shaped grooves (23a) and (23b), which are second V-shaped grooves and are for holding electrode rods (7), are formed facing each other, respectively. The positions of optical fibers and the electrode rods (7) are determined by the V-shaped grooves (15a) and (15b) and the V-shaped grooves (23a) and (23b), respectively.Type: ApplicationFiled: February 10, 2017Publication date: August 17, 2017Applicants: FURUKAWA ELECTRIC CO., LTD., SEIWA GIKEN INC.Inventors: Junichi KAZAMA, Tomohiro AKIYAMA, Takashi TANAKA
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Publication number: 20170235055Abstract: Provided is an optical coupler configured to cause an NA of light, which exits a taper fiber, to be smaller as compared with a conventional optical coupler. A taper fiber has a high refractive index part which is provided inside a core of the taper fiber and which has a refractive index smaller than a refractive index ncore of the core. An exit end surface of each GI fiber is bonded to an entrance end surface of the taper fiber so that at least a part of the exit end surface of the each GI fiber overlaps with a section of the high refractive index part. A relative refractive index difference of the taper fiber is smaller than 0.076%.Type: ApplicationFiled: March 6, 2017Publication date: August 17, 2017Applicant: FUJIKURA LTD.Inventors: Tomoyuki Fujita, Kentaro Ichii, Ken Katagiri, Kenichi Ohmori, Rintaro Kitahara, Tatsuya Kishi
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Publication number: 20170235056Abstract: A modified directional coupler structure is used to provide a controllable time delay or phase shift for radiation propagating through the structure. A longitudinal displacement of the interaction region of the directional coupler relative to one or both of the waveguides of the directional coupler provides this effect. Double flexure arrangements can be used to provide longitudinal displacement with substantially no corresponding lateral displacement (or vice versa). In some embodiments, lateral and longitudinal displacement of the waveguides of the directional coupler are independently adjustable to provide full control of the power splitting and phase shift/time delay of the directional coupler.Type: ApplicationFiled: December 15, 2016Publication date: August 17, 2017Inventor: David A.B. Miller
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Publication number: 20170235057Abstract: Beam compressors include separated surfaces having positive and negative optical powers. A surface spacing is selected so that a collimated beam input to the beam compressor is output as a collimated beam. In some examples, beam compressors are situated to compress a laser beam stack that includes beams associated with a plurality of laser diodes. Beam compression ratios are typically selected so that a compressed beam stack focused into an optical waveguide has a numerical aperture corresponding to the numerical aperture of the optical waveguide.Type: ApplicationFiled: February 16, 2017Publication date: August 17, 2017Applicant: nLIGHT, Inc.Inventors: David Martin Hemenway, David C. Dawson, Wolfram Urbanek
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Publication number: 20170235058Abstract: A MEMS optical switch and a switching node are disclosed. The MEMS optical switch includes N1 input ports, N1 input MEMS mirrors, M1 output ports, and M1 output MEMS mirrors, where a first input port is configured to transmit a first optical signal to a first input MEMS mirror. The first input MEMS mirror is configured to reflect the first optical signal to a first destination output MEMS mirror, where along a straight line in which a first deflection axis is located, the first input MEMS mirror is located on an edge of the N1 input MEMS mirrors, and when reflecting the received first optical signal to a first output MEMS mirror and a second output MEMS mirror, the first input MEMS mirror deflects towards an opposite direction relative to a second deflection axis.Type: ApplicationFiled: May 4, 2017Publication date: August 17, 2017Inventors: Peng Zhang, Chendi Jiang
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Publication number: 20170235059Abstract: A method and system for affixing multi-core fiber (MCF) within a ferrule includes a UV light source and a light guide. MCFs are placed into epoxy filled holders, e.g., channels or v-grooves, of a ferrule. A first MCF in a first holder is clocked to orient its cores to a desired position. The light source is activated, and the light from the light guide is launched into an outer layer of the first MCF, like the cladding layer or a dedicated light carrying layer. The light in the outer layer will stay in the outer layer until it reaches the portion of the first MCF in contact with the epoxy, even if the light is launched from the far end of the fiber remote from the holder. At the holder, the light will leak out due to the similarity in the index of refraction. The leaking light will at least partially cure the epoxy to affix the first MCF within the first holder. The process may then be repeated for the remaining MCFs, so that each MCF may be clocked and affixed selectively rather than collectively.Type: ApplicationFiled: April 28, 2017Publication date: August 17, 2017Inventors: Timothy W. ANDERSON, Jeffrey D. Nielson
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Publication number: 20170235060Abstract: A fiber optic adapter assembly is provided with a floating adapter module. The adapter assembly includes a housing, an adapter module, and a single biasing member disposed in the housing and concentrically aligned with the adapter module. The single biasing member can bias the adapter module in a direction toward an end of the housing and be compressible in the opposite direction toward the other end of the housing.Type: ApplicationFiled: August 14, 2015Publication date: August 17, 2017Applicant: CommScope Connectivity Belgium BVBAInventor: Philippe COENEGRACHT
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Publication number: 20170235061Abstract: This optical fiber connection structure connects a multicore fiber and a bundle structure bundling a plurality of optical fibers. The multicore fiber has a plurality of cores arranged in a lattice. The bundle structure includes closely packed optical fibers of the same diameter. The bundle structure is configured such that signal light optical fiber groups including signal light optical fibers and a dummy fiber group including dummy optical fibers are stacked in multiple layers. The signal light optical fiber groups are configured with the signal light optical fibers aligned in the mutually contacting direction. The signal light optical fiber groups and the dummy fiber group are stacked orthogonal to the alignment direction of the optical fibers constituting the respective fiber groups.Type: ApplicationFiled: August 4, 2015Publication date: August 17, 2017Inventors: Kengo WATANABE, Tsunetoshi SAITO
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Publication number: 20170235062Abstract: A fiber optic plug, suitable for multi-core fiber (MCF), is structured to hold satellite cores of the MCF in a precise angular positions so as to attain suitable alignment with satellite cores of a mating connector. The plug includes features to permit a ferrule holding the MCF to move longitudinally relative to the connector's housing, so that a spring may control a mating force to an abutting ferrule of a mating connector. The ferrule may be held by ferrule barrel having splines projecting away from an outer peripheral surface. The splines may slide longitudinally within notches of the connector housing or a strength member attached to the connector housing. The notches and splines have a tight tolerance, so that the satellite cores remain in a desired, set angular position.Type: ApplicationFiled: April 30, 2017Publication date: August 17, 2017Inventor: Jeffrey D. NIELSON
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Publication number: 20170235063Abstract: A strain relief boot and a fiber optic cable assembly are described. The strain relief boot has a first conduit made of at least a first material. The first conduit has a front segment and a rear segment. The rear segment includes at least one discontinuity to make the rear segment more flexible than the front segment. The rear segment also includes at least one projection extending outwardly from the rear segment at a location adjacent to the at least one discontinuity. The strain relief boot also has a second conduit made from at least a second material that is less rigid than the first material. The second conduit at least partially surrounds at least the rear segment of the first conduit and extends rearwardly of the first conduit.Type: ApplicationFiled: January 30, 2017Publication date: August 17, 2017Inventors: Izhar Zahoor Ahmed, Brandon Andrew Barnes, Ashley Wesley Jones, Nikhil Baburam Vasudeo
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Publication number: 20170235064Abstract: Optical fiber connector assembly for a fiber optic cable includes an optical fiber having an end portion terminated with a ferrule. The optical fiber connector assembly includes: a sleeve configured to at least partially house the end portion of the optical fiber terminated with the ferrule; a connector including a body extending lengthwise and having an internal passageway for the sleeve, the body having a distal portion, configured to house the sleeve and to mate with a corresponding receptacle, and a proximal portion configured to be coupled to an end portion of the fiber optic cable, the proximal portion having on its lateral surface at least one aperture; and a crimping element adapted to couple the proximal portion of the body to the end portion of the fiber optic cable at the at least one aperture. A pre-connectorized fiber optic cable includes a fiber optic cable and the optical fiber connector assembly mounted upon an end portion of the fiber optic cable.Type: ApplicationFiled: August 6, 2014Publication date: August 17, 2017Applicant: PRYSMIAN S.P.A.Inventors: Ian GRIFFITHS, Matt KERRY, Stephen PIKE
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Publication number: 20170235065Abstract: The present disclosure relates to a fiber optic network including first and second optical components desired to be optically coupled together, and third and fourth optical components desired to be couple together. The first and second optical components include first and second de-mateable connection locations having dust caps with first coordinated indicia. The third and fourth optical components include third and fourth de-mateable connection locations having dust caps with second coordinated indicia.Type: ApplicationFiled: January 27, 2017Publication date: August 17, 2017Inventor: Todd Loeffelholz
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Publication number: 20170235066Abstract: Provided are methods of forming sealed via structures. One method involves: (a) providing a semiconductor substrate having a first surface and a second surface opposite the first surface; (b) forming a layer on the first surface of the substrate; (c) etching a via hole through the substrate from the second surface to the layer, the via hole having a first perimeter at the first surface; (d) forming an aperture in the layer, wherein the aperture has a second perimeter within the first perimeter; and (e) providing a conductive structure for sealing the via structure. Also provided are sealed via structures, methods of detecting leakage in a sealed device package, sealed device packages, device packages having cooling structures, and methods of bonding a first component to a second component.Type: ApplicationFiled: May 2, 2017Publication date: August 17, 2017Inventor: David W Sherrer
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Publication number: 20170235067Abstract: A wall box includes an enclosure having a base and a cover connected to the base. The base and the cover enclose an interior region. The wall box further includes a plurality of fiber optic adapters mounted to the enclosure. The fiber optic adapters include an inner port positioned inside the interior region and an outer port positioned at an outer surface of the enclosure. A tray stack is mounted within the interior region. The tray stack includes a tray mount pivotally connected to the enclosure. The tray mount includes a top surface and an oppositely disposed bottom surface. A first splice tray mounting area is disposed on the top surface and a second splice tray mounting area is disposed on the bottom surface. A plurality of trays is disposed in the first splice tray mounting area. A tray is disposed in the second splice tray mounting area.Type: ApplicationFiled: January 24, 2017Publication date: August 17, 2017Inventors: Matthew Holmberg, James J. Solheid, Erik J. Gronvall, Paula Rudenick, Thomas Marcouiller
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Publication number: 20170235068Abstract: Embodiments of the invention include an optical fiber cable. The optical fiber cable includes a plurality of multi-fiber unit tubes. The multi-fiber unit tubes are substantially circular and dimensioned to receive a plurality of optical fibers. The optical fiber cable also includes a plurality of partially bonded optical fiber ribbons positioned within at least one of the multi-fiber tubes. The partially bonded optical fiber ribbons are partially bonded in such a way that each partially bonded optical fiber ribbon is formed in a random shape. The partially bonded optical fiber ribbons also are partially bonded in such a way that the plurality of partially bonded optical fiber ribbons are randomly positioned within the multi-fiber unit tube. The optical fiber cable also includes a jacket surrounding the plurality of multi-fiber unit tubes.Type: ApplicationFiled: September 28, 2016Publication date: August 17, 2017Applicant: OFS Fitel, LLCInventors: Harold P. Debban, Peter A. Weimann, Timothy Goddard
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Publication number: 20170235069Abstract: The present invention relates to central loose optical-fiber cables. An exemplary optical-fiber cable includes a central buffer tube that encloses loose optical fibers. Stranded strength yarns surround the central buffer tube and the optical fibers positioned within the central buffer tube's annular space, and a cable jacket surrounds the stranded strength yarns.Type: ApplicationFiled: October 14, 2014Publication date: August 17, 2017Inventors: Brian G. Risch, Denise Collado
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Publication number: 20170235070Abstract: A telecommunications assembly including a housing and a plurality of modules mounted within the housing. The modules includes a rear face in which is mounted at least one fiber optic connector. Within an interior of the housing are positioned at least one fiber optic adapters. Inserting the module through a front opening of the housing at a mounting location positions the connector of the module for insertion into and mating with the adapter of the housing. The adapters within the interior of the housing are mounted to a removable holder. A method of mounting a telecommunications module within a chassis.Type: ApplicationFiled: February 1, 2017Publication date: August 17, 2017Inventors: Steven C. Zimmel, Ponharith Nhep, Trevor D. Smith
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Publication number: 20170235071Abstract: A telecommunications module includes a main housing portion and a cover, the main housing portion defining a first sidewall, a front wall, a rear wall, a top wall, and a bottom wall, the cover defining a second sidewall when mounted on the main housing portion. An optical component located within the module receives an input signal from a signal input location of the housing and outputs an output signal toward a signal output location on the front wall. The telecommunications module is configured such that the signal input location can be selected to be either on the front wall or the rear wall of the main housing. The cover defines a protrusion extending from the second sidewall toward the main housing portion, the protrusion being selectively breakable to expose a recess on the front wall of the main housing portion that defines a signal input location.Type: ApplicationFiled: February 6, 2017Publication date: August 17, 2017Inventor: Steven C. Zimmel
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Publication number: 20170235072Abstract: A connector panel for plug-in units in a telecommunication system, the telecommunication system including a sub-rack or shelf having a backplane for power supply of a number of N plug-in units within the shelf and for enabling the N plug-in units within the shelf to communicate with each other; wherein the connector panel is an entity separate from the backplane and includes a number of m connectors providing an interface between n dedicated plug-in units among the N plug-in units within the shelf, with 2?n<N and m?n; and wherein the connector panel is configured to be removably attached at an interior wall of the shelf.Type: ApplicationFiled: August 12, 2015Publication date: August 17, 2017Inventors: Siegwald SCHUSTER, Christian POLACEK-ATTENBERGER
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Publication number: 20170235073Abstract: A fiber optic cassette including a body defining a front and an opposite rear and an enclosed interior. A cable entry location is defined in the body for a cable to enter the interior of the cassette. The cable which enters at the cable entry location is attached to the cassette body and the fibers are extended into the cassette body and form terminations at connectors. The connectors are connected to adapters located at the front of the cassette. A front side of the adapters defines termination locations for cables to be connected to the fibers connected at the rear of the adapters. A cable including a jacket, a strength member, and fibers enters the cassette. The strength member is crimped to a crimp tube and is mounted to the cassette body, allowing the fibers to extend past the crimp tube into the interior of the cassette body. A strain relief boot is provided at the cable entry location.Type: ApplicationFiled: December 28, 2016Publication date: August 17, 2017Inventors: Michael James Ott, David Patrick Murray, Patrick J. Thompson
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Publication number: 20170235074Abstract: A plurality of patch trays displaceably received in a chassis received in a left side or right side of an access side of a frame, and a splice tray removeably received in the access side of the frame. The splice tray having a capacity to receive at least about 288 fiber terminations and the plurality of patch trays displaceably received in the chassis having a capacity to collectively receive the at least about 288 fiber terminations from the splice tray. A patch tray including a row of pop-up adapter packs to collectively receive a respective portion of the at least about 288 fiber terminations received by the patch tray. The row of pop-up adapter packs arranged in the patch tray substantially in a left side or right side of the patch tray to offset the row of pop-up adapter packs to provide more space for routing the respective portion of the 288 fiber terminations in the patch tray.Type: ApplicationFiled: February 17, 2016Publication date: August 17, 2017Inventors: Steven W. Ellison, David Knaggs
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Publication number: 20170235075Abstract: A fiber optic communications arrangement includes a closure with an interior volume; the closure including at least one cable through-port in communication with the interior volume; and an expansion component attached to an exterior portion of the closure and having an interior region in communication with the closure interior volume. The expansion component includes ruggedized fiber optic adapters mounted thereto. Each of the ruggedized fiber optic adapters includes at least one connector port for receiving ruggedized fiber optic connectors.Type: ApplicationFiled: May 1, 2017Publication date: August 17, 2017Inventors: Eric E. Alston, Daniel B. Hangebrauck, Jack Smith
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Publication number: 20170235076Abstract: A fiber optic telecommunications device includes a frame and a fiber optic module including a rack mount portion, a center portion, and a main housing portion. The rack mount portion is stationarily coupled to the frame, the center portion is slidably coupled to the rack mount portion along a sliding direction, and the main housing portion is slidably coupled to the center portion along the sliding direction. The main housing portion of the fiber optic module includes fiber optic connection locations for connecting cables to be routed through the frame. The center portion of the fiber optic module includes a radius limiter for guiding cables between the main housing portion and the frame, the center portion also including a latch for unlatching the center portion for slidable movement. Slidable movement of the center portion with respect to the rack mount portion moves the main housing portion with respect to the frame along the sliding direction.Type: ApplicationFiled: December 1, 2016Publication date: August 17, 2017Inventors: James J. Solheid, Thomas Marcouiller, Oscar Fernando Bran de León, Matthew Holmberg, Timothy Jon Haataja, Daniel Ray Mertesdorf, Soutsada Vongseng, Darren Chen, Patrick J. Thompson, John T. Pfarr, Kristofer Bolster, Brent Campbell, Raul Mario Saucedo, Gustavo Cano, Scott E. Sievers
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Publication number: 20170235077Abstract: The present invention relates to a telecommunications termination panel with a tray pivotably mounted within the front opening of a housing. The tray pivots about a hinge located adjacent one of the sides of the housing and includes a raised floor. The raised floor of the tray cooperates with the side adjacent the hinge and a bottom of the housing to define a cable path from a rear cable access port to an opening on the tray adjacent the hinge. The tray includes a plurality of connection locations and cable management structures to direct a telecommunications cable from the cable access port to a rear of the connection locations without violating bend radius rules. The tray may also include a temporary cable holder to assist in pulling cables through the rear opening into the housing. The present invention further relates to a telecommunications equipment rack with a termination panel with such a pivoting tray mounted to the rack.Type: ApplicationFiled: December 23, 2016Publication date: August 17, 2017Inventors: Clinton M. Knudsen, Patrick J. Thompson
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Publication number: 20170235078Abstract: A fiber optic telecommunications device includes a frame and a fiber optic module. The fiber optic module includes a main housing portion defining fiber optic connection locations for connecting cables to be routed through the frame and a cable management portion for guiding cables between the main housing portion and the frame. The main housing portion of the fiber optic module is slidably mounted to the frame, the main housing portion slidable between a retracted position and an extended position in a sliding direction. The cable management portion of the fiber optic module includes a radius limiter slidably coupled to both the main housing portion and the frame, wherein movement of the main housing portion with respect to the frame slidably moves the radius limiter with respect to the main housing portion along the sliding direction.Type: ApplicationFiled: January 3, 2017Publication date: August 17, 2017Inventors: Matthew Holmberg, James J. Solheid
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Publication number: 20170235079Abstract: A fiber optic telecommunications device includes an enclosure defining an interior. A first fiber optic adapter is provided at the enclosure. A spool is provided at an exterior of the enclosure. A fiber optic cable, which includes a first optical fiber, is wrapped around the spool. A first fiber optic connector is mounted at a first end of the first optical fiber. The first end of the first optical fiber is positioned within the interior of the enclosure. The first fiber optic connector is inserted within the first fiber optic adapter. The enclosure and the spool are configured to rotate in unison about a common axis when the fiber optic cable is unwound from the spool.Type: ApplicationFiled: December 22, 2016Publication date: August 17, 2017Inventors: Scott C. Kowalczyk, Trevor D. Smith, Jonathan R. Kaml, Thomas G. LeBlanc, Ronald A. Beck
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Publication number: 20170235080Abstract: An innerduct for a cable containing one or more strip-shaped lengths of woven textile fabric configured to create a flexible, longitudinal compartment for enveloping a cable. The woven fabric comprises a plurality warp yarns and a plurality of picks of weft yarns, the weft yarns contain a repeating first weft pattern of at least one monofilament yarn, at least one multiple-inserted multifilament yarn, and optionally at least one single-inserted multifilament yarn. The woven fabric contains an alternating pattern containing first weave zones and partial float weave zones. The warp yarns in the first weave zone pass successively over and under each adjacent weft yarn and at least a portion of the warp yarns in the partial float zone float over some adjacent weft yarns.Type: ApplicationFiled: May 4, 2017Publication date: August 17, 2017Inventors: Steven L. Bedingfield, Christopher G. Durham
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Publication number: 20170235081Abstract: An innerduct for a cable containing one or more strip-shaped lengths of woven textile fabric configured to create a flexible, longitudinal compartment for enveloping a cable. The woven fabric comprises a plurality warp yarns and a plurality of picks of weft yarns and contains an alternating pattern containing first weave zones and partial float weave zones. The warp yarns in the first weave zone pass successively over and under each adjacent weft yarn and at least a portion of the warp yarns in the partial float zone float over some adjacent weft yarns.Type: ApplicationFiled: May 4, 2017Publication date: August 17, 2017Inventors: Steven L. Bedingfield, Christopher G. Durham
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Publication number: 20170235082Abstract: A mid-span clamp includes an elongate base that defines a cable channel on a top side. The clamp includes a first pressure block connected to the base by a first control arm. The first pressure block includes a clamping surface and a top surface. The top surface includes a cleat. The clamp includes a second pressure block connected to the base by a second control arm. The second pressure block also includes a clamping surface and a top surface. The top surface includes a cleat. The clamp has an open position and a closed position. In the open positon, a cable passageway is defined between the clamping surfaces of the first and second pressure blocks and the cable channel of the base. In the closed position, the clamping surfaces of the first and second pressure blocks close the cable passageway. The clamp is biased in the closed position.Type: ApplicationFiled: February 10, 2017Publication date: August 17, 2017Inventor: Thomas A. Thigpen
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Publication number: 20170235083Abstract: A method for connecting a number of users with at least one signal bearing optical fiber contained in an optical cable. The method includes: a) interrupting the signal bearing optical fiber at a first branch point, obtaining a first optical fiber segment upstream of the branch point and a second optical fiber segment downstream of the branch point; b) providing an optical splitter at the branch point, the optical splitter including an input and two outputs; c) coupling the first optical fiber segment with the input of the optical splitter; d) coupling a first output of the optical splitter with a first user; e) coupling a second output of the optical splitter with a downstream optical fiber segment of an interrupted optical fiber contained in the optical cable; and f) coupling the downstream optical fiber segment with at least one further user at a further branch point downstream the first branch point.Type: ApplicationFiled: September 16, 2014Publication date: August 17, 2017Applicant: PRYSMIAN S.p.A.Inventor: Lluis Ramon SALES CASALS
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Publication number: 20170235084Abstract: A cable mount for fixing a strength member of a fiber optic cable to a fixture includes a front end, a rear end, and a longitudinal channel therebetween, the channel defined by upper and lower transverse walls and a vertical divider wall. The channel receives a portion of the cable. A strength member pocket receives the strength member of the cable, the pocket located on an opposite side of the divider wall from the longitudinal channel, the pocket communicating with the longitudinal channel through an opening on the divider wall. A strength member clamp fixes the strength member of the cable against axial pull. Cable management structures in the form of spools define at least one notch that communicates with the longitudinal channel for guiding optical fibers extending from a jacket either upwardly or downwardly therethrough. The cable mount also allows routing of the optical fibers through the longitudinal channel all the way from the rear end to the front end.Type: ApplicationFiled: December 12, 2016Publication date: August 17, 2017Applicants: CommScope Connectivity Belgium BVBA, ADC Czech republic s.r.o.Inventors: Johan GEENS, Pieter VERMEULEN, Eric KEUSTERMANS, Matthias AIDERWEIRELDT, Tomas FUCSEK
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Publication number: 20170235085Abstract: An optical mount, comprising an outer ring (1), an inner ring (2), at least two manipulator units, by means of which the inner ring (2) is adjustable with respect to the outer ring (1) in an adjustment plane perpendicular to a mount axis, and at least one clamping unit (0) acting independently of the manipulator units. The clamping unit (0) is formed by a threaded hole (4), which is directed radially to the mount axis (1.1) in the outer ring (1), and a screw (5) supported in said threaded hole (4), said screw (5) having a through hole (8) along the screw axis (5.0) which is connected with the inner ring (2) in the clamping condition via an adhesive gap (7) filled with adhesive (6).Type: ApplicationFiled: February 10, 2017Publication date: August 17, 2017Inventors: Torsten ERBE, Frank Schroeder
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Publication number: 20170235086Abstract: The present application discloses an optical post system for use with an optical mount device and includes at least one post body having at least one engaging surface formed thereon, at least one fastener recess configured to receive at least one fastener configured to couple the optical post system to at least one work surface therein formed in the post body, at least one fastener adjustment relief having at least one angled fastener plate positioned therein formed in the post body wherein the fastener adjustment relief is in communication with the fastener via the fastener recess.Type: ApplicationFiled: February 10, 2017Publication date: August 17, 2017Applicant: Newport CorporationInventors: Wen Xu Jin, James Fisher
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Publication number: 20170235087Abstract: A solid immersion lens holder includes a first member having a first opening disposing a spherical face portion therein so that a part of the spherical face portion protrudes toward an objective lens side and a second member having a second opening disposing a contact portion therein so that a contact face protrudes toward a side opposite to the objective lens side. The first member includes three protrusion portions extending from an inner face of the first opening toward a center of the first opening and configured to be contactable with the spherical face portion.Type: ApplicationFiled: September 24, 2015Publication date: August 17, 2017Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Hirotoshi TERADA, Ikuo ARATA, Masataka IKESU
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Publication number: 20170235088Abstract: The present invention relates to an to an optical device comprising a micro-optical system and a retainer, and to a method for producing an optical device. In the case of the device according to the invention, the micro-optical system (10) is fastened in such a way that the micro-optical system is oriented in relation to a surface (50) of the retainer (60). The device is characterized in that the retainer (60) has a round, tapered recess (40) and the micro-optical system (10) is fastened on a spherical cap (20) and the spherical cap (20) is fastened to the retainer (60), wherein the spherical cap (20) at least partially protrudes into the recess (40) and lies against a partial surface (30) of the recess (40) or an edge (41) in the recess (40), wherein the spherical cap (20) is fastened to the retainer (60) in the recess (40), but is not fastened where the spherical cap lies in contact.Type: ApplicationFiled: July 24, 2015Publication date: August 17, 2017Inventors: Ahmad Ibrahim Bawamia, Christian Kuerbis, Andreas Wicht
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Publication number: 20170235089Abstract: In order to provide a projection lens barrel and a projection display device that are capable of correcting the optical characteristics of a plurality of lens groups, a projection lens barrel, comprising a lens optical system causing light from an image display element to be formed as a projected image on a screen, also comprises correction mechanisms that move each of at least two lens groups along an optical axis and correct the optical characteristics to be corrected, said lens groups each having different optical characteristics for correction in order to suppress reduction in image quality of a projected image caused by changes in optical characteristics caused by temperature changes in the projection lens barrel.Type: ApplicationFiled: August 27, 2015Publication date: August 17, 2017Inventors: Takafumi HANAOKA, Takahiko MATSUO, Takuya FUJIMATSU
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Publication number: 20170235090Abstract: There is provided a lens barrel that can easily and reliably prevent an erroneous operation at the time of switching of a manual focus mode. A lens barrel body houses an imaging optical system including a focus lens. A focus operation ring rotates integrally with a first connection ring about an optical axis of the imaging optical system. A second connection ring is movable between an engagement position at which the second connection ring is engaged with the first connection ring and a cam ring and a disengagement position at which the second connection ring is not engaged with both of the first connection ring and the cam ring. A switching-operation ring is movable between a rotation-restriction position at which the switching-operation ring moves the second connection ring to the engagement position and a rotation-allowable position at which the switching-operation ring moves the second connection ring to the disengagement position.Type: ApplicationFiled: May 2, 2017Publication date: August 17, 2017Applicant: FUJIFILM CorporationInventors: Yukitaka TAKESHITA, Mitsuhiko OKA, Yuichi KAWANABE, Yi PAN, Shinji OTSUKA, Kazuyoshi AZEGAMI
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Publication number: 20170235091Abstract: A driving device includes a driving motor, a first gear 3-1, and a gear 3-2 having a smaller diameter than the gear 3-1. Driving force from the driving motor is transmittable to a driven object when the gear 3-2 moves in an axial direction of a rotation shaft to be coupled to the gear 3-1. When the gear 3-2 moves in the axial direction to be decoupled from the gear 3-1, the driving force from the driving motor can be prevented from being transmitted to the driven object.Type: ApplicationFiled: February 7, 2017Publication date: August 17, 2017Inventor: Katsuhiko Sato
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Publication number: 20170235092Abstract: The optical driver apparatus is detachably attachable to an optical apparatus. The optical apparatus includes a lens operation member operable manually, and a locking mechanism switchable between a locking state of restraining motion of the lens operation member and an unlocking state of releasing the restraint. The optical driver apparatus includes a driver operation member, an actuator configured to move the lens operation member, and a controller configured to control the actuator. The controller is configured to drive the actuator in response to an operation of the driver operation member when the locking mechanism is in the unlocking state and to control the actuator, when the locking mechanism is in the locking state, so as to provide one of a state of not driving the actuator in response to the operation of the driver operation member and a state of performing a warning operation.Type: ApplicationFiled: February 9, 2017Publication date: August 17, 2017Inventor: Nobuyuki Nagaoka
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Publication number: 20170235093Abstract: A lens driving device includes: a lens carrier for fixing a lens barrel to the inside thereof; a driving Unit for moving the lens carrier along the optical axis direction of the lens barrel; and an upper leaf spring and a lower leaf spring attached to the lens carrier in a manner that a surface of the each upper leaf spring and lower leaf spring is oriented orthogonal to the optical axis direction at an upper part and a lower part of the lens carrier and so that the lens carrier is supported in a manner to move freely in the optical axis direction of the lens barrel; wherein the lens carrier has an opening through which the lens barrel can be inserted from the direction intersecting the optical axis direction of the lens barrel.Type: ApplicationFiled: February 10, 2017Publication date: August 17, 2017Inventor: Naoki Sekiguchi
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Publication number: 20170235094Abstract: A lens holder driving device is provided with a lens holder, a securing part including a base member, a drive mechanism, and a position detection unit. The drive mechanism includes a yoke that is provided to stand on the base member. The position detection unit includes a sensor magnet mounted to the outer peripheral surface of the lens holder, and a magnetic detection element provided in the securing part. The yoke is provided with a tube-shaped external cylinder part, and the external cylinder part includes a plurality of plate sections each having a cutout section. The lens holder driving device includes a foreign matter entry prevention member that prevents foreign matter from getting inside from the cutout sections of the plate sections.Type: ApplicationFiled: July 17, 2015Publication date: August 17, 2017Applicant: MITSUMI ELECTRIC CO., LTD.Inventors: Tomohiko OSAKA, Takashi ISHIZAWA