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    1.
    发明专利
    "CONNECTED OPTICAL CABLE" 未知

    公开(公告)号：IN3280DEN2012A

    公开(公告)日：2015-10-23

    申请号：IN3280DEN2012

    申请日：2012-04-16

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： MURASHIMA KIYOTAKA ,  TOYOOKA HIROYASU ,  HOMMA TOSHIHIKO ,  SATO RYUICHIRO ,  IWAI KEITARO

    IPC: G02B6/255

    Abstract: The present invention provides a connected optical cable capable of reinforcing a spliced portion of coated optical fibers to have adequate strength. The connected optical cable includes: a pair of optical fiber cables in which high-strength fibers are aligned in the longitudinal direction around coated optical fibers, the outer circumference of the coated optical fibers being covered by sheaths; and a connected portion in which the pair of optical fiber cables are connected, the coated optical fibers being extended from the sheaths, glass fibers exposed from the coating of the coated optical fibers being spliced to each other, and the connected portion being covered and formed into an integral unit, together with the high-strength fibers exposed from the sheaths, by a reinforcing tube placed over the optical fiber cables and caused to contract so that both ends of the reinforcing tube engage the sheath of the respective optical fiber cables.

    cabo ótico conectado
    3.
    发明专利
    cabo ótico conectado 未知

    公开(公告)号：BR112012008634A2

    公开(公告)日：2016-04-19

    申请号：BR112012008634

    申请日：2010-10-01

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： TOYOOKA HIROYASU ,  IWAI KEITARO ,  MURASHIMA KIYOTAKA ,  SATO RYUICHIRO ,  HOMMA TOSHIHIKO

    IPC: G02B6/255

    Abstract: cabo ótico conectado a presente invenção fornece um cabo ótico conectado capaz de reforçar uma parte emendada de fibras óticas recobertas para ter a resistência adequada. o cabo ótico conectado que inclui: um par de cabos de fibra ótica em que fibras de alta resistência são alinhadas na direção longitudinal em torno de fibras óticas recobertas, a circunferência externa das fibras óticas recobertas e as fibras de alta resistência sendo cobertas por invólucros; e uma parte emendada em que o par de cabos de fibra ótica é conectado, as fibras óticas recobertas sendo estendidas a partir invólucros, fibras de vidro expostas a partir do revestimento das flores óticas recobertas sendo conectadas uma na outra, e a parte conectada sendo coberta e formada em uma unidade integral, junto com as fibras de alta resistência expostas a partir dos invólucros, por um tubo de reforço colocado para engatar com o invólucro respectivo dos cabos de fibra ótica, e feito contrair que ambas as extremidades do tubo de reforço engatam os invólucros dos cabos de fibra ótica respectivos.

    APPARATUS AND METHOD OF MANUFACTURING OPTICAL WAVEGUIDE TYPEDIFFRACTION GRATING DEVICE
    4.
    发明专利
    APPARATUS AND METHOD OF MANUFACTURING OPTICAL WAVEGUIDE TYPEDIFFRACTION GRATING DEVICE 未知

    公开(公告)号：CA2470551A1

    公开(公告)日：2004-12-10

    申请号：CA2470551

    申请日：2004-06-09

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： MURASHIMA KIYOTAKA ,  HASHIMOTO KEN ,  INOUE AKIRA ,  SHIBATA TOSHIKAZU

    IPC: G02B6/122 ,  G02B5/18 ,  G02B6/02 ,  G02B6/18

    Abstract: The present invention relates to a method and apparatus which make it possible to manufacture an optical waveguide type diffraction grating device achieving desired optical characteristics easily. In the present method; the optical fiber is irradiated as refractive index change inducing light outputted from a light source through a phase grating mask after passing through a shutter, an optical system, and a mirror. The mirror is moved in the direction of a z-axis to scan the irradiating position of the refractive index change inducing light on the optical fiber plural times. Every scan among the plurality of scans of the irradiating position, the phase grating mask is relatively displaced along the z-axis the direction opposite to each other from a reference relative position of the phase grating mask relative to the optical fiber.

    CONNECTED OPTICAL CABLE
    6.
    发明专利
    CONNECTED OPTICAL CABLE 未知

    公开(公告)号：CA2777918A1

    公开(公告)日：2011-04-28

    申请号：CA2777918

    申请日：2010-10-01

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： MURASHIMA KIYOTAKA ,  TOYOOKA HIROYASU ,  HOMMA TOSHIHIKO ,  SATO RYUICHIRO ,  IWAI KEITARO

    IPC: G02B6/255

    Abstract: Provided is an optical cable connection structure capable of sufficiently strongly reinforcing a connecting portion at which optical fiber core wires are connected to each other. The optical cable connection structure comprises a pair of optical cables and a connecting portion at which the pair of optical cables are connected to each other. Each of the optical cables is obtained by having tensile fibers extend all along the longitudinal direction of an optical fiber core wire in such a manner as to surround the optical fiber core wire, and having the outer circumference of the optical fiber core wire, together with the tensile fibers, covered by an outer cover. The connecting portion has the optical fiber core wires extended out from the outer covers, has glass fibers connected to each other which are exposed from coverings of the optical fiber core wires, and is integrated with the pair of optical cables by being covered, together with the tensile fibers exposed from the outer covers, by a reinforcing tube, which has been put over the optical cables and caused to contract so that both ends of the reinforcing tube may be placed on the outer covers of the respective optical cables.

    DIFFRACTION GRATING DEVICE MAKING METHOD AND APPARATUS
    7.
    发明专利
    DIFFRACTION GRATING DEVICE MAKING METHOD AND APPARATUS 未知

    公开(公告)号：CA2455028A1

    公开(公告)日：2004-07-14

    申请号：CA2455028

    申请日：2004-01-12

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： HASHIMOTO KEN ,  SHIBATA TOSHIKAZU ,  MURASHIMA KIYOTAKA ,  INOUE AKIRA ,  IWASHIMA TORU

    IPC: G02B5/18 ,  G02B6/02 ,  G02B6/34 ,  G02B6/10

    Abstract: Refractive index change inducing light UV outputted from a light source passes a shutter and an optical system, and then is reflected by a mirror, so as to irradiate an optical fiber by way of a phase grating mask. A diffracting action of the phase grating mask generates a (+)first-order light component and a (-)first-order light component, which interfere with each other, thereby generating interference fringes with a fringe interval ~. As the mirror moves along the z axis, an irradiation position at which the optical fiber is irradiated with the refractive index change inducing light UV by way of the phase grating mask is scanned. While moving the mirror upon irradiation with the refractive index change inducing light UV, the phase grating mask is vibrated along the z axis under the action of a piezoelectric device. The phase or period of vibration varies from scan to scan.

    INTERLEAVER, FILTER INCLUDED THEREIN, AND INTERLEAVER SYSTEM
    8.
    发明专利
    INTERLEAVER, FILTER INCLUDED THEREIN, AND INTERLEAVER SYSTEM 未知

    公开(公告)号：CA2396940A1

    公开(公告)日：2002-05-16

    申请号：CA2396940

    申请日：2001-11-09

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： INOUE AKIRA ,  SHIOZAKI MANABU ,  SUGANUMA HIROSHI ,  MURASHIMA KIYOTAKA ,  SANO TOMOMI

    IPC: G02B6/34 ,  G02B27/28

    Abstract: An interleaver having excellent isolation between signal channels and flat transmission spectrum in the vicinity of each channel wavelength. The interleaver comprises an input port for receiving signals of channels, and first and second output ports for outputting signals of first and second channel groups separated from the signals of the channels. The transmission spectrum of the output light from the first output port and that of the outp ut light from the second output port have such a flatness that the difference between the maximum transmissivity and the minimum transmissivity is within 0.4 dB, preferably, 0.2 dB in a wavelength range of .plusmn. 0.06 nm around each signal channel wavelength, and the crosstalk between the adjacent signa l channels is suppressed to 20 dB, preferably, -30 dB.

    REINFORCING MEMBER AND REINFORCING METHOD FOR FUSION SPLICED PORTIONS OF OPTICAL FIBERS
    9.
    发明公开
    REINFORCING MEMBER AND REINFORCING METHOD FOR FUSION SPLICED PORTIONS OF OPTICAL FIBERS 审中-公开

    公开(公告)号：EP2506050A4

    公开(公告)日：2018-01-03

    申请号：EP10833243

    申请日：2010-11-25

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： SATO RYUICHIRO ,  TOYOOKA HIROYASU ,  HOMMA TOSHIHIKO ,  MURASHIMA KIYOTAKA

    IPC: G02B6/255

    CPC classification number: G02B6/2558

    Abstract: A reinforcing member of optical fiber fusion-splicing portion and a reinforcing method thereof are provided, in which plural coated optical fibers can be collectively reinforced in the high density, and a heating mechanism for collective reinforcement can be configured at a low cost. A reinforcing member 12 which reinforces collectively fusion-splicing portions 12a of plural coated optical fibers 11 includes a heat-shrinkable tube 13, a rod-shaped tensile strength member 14 arranged so that a part of its surface comes into contact with an inner surface of the heat-shrinkable tube, and plural tube-shaped heat-fusible adhesive members 15 arranged in the heat-shrinkable tube and into which the fusion-splicing portions of the single-core coated optical fibers are individually inserted. All of the plural tube-shaped heat-fusible adhesive members 15 are arranged in one of space portions formed between the tensile strength body 14 and the heat-shrinkable tube.

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