中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

7 records (took 0.015 seconds)

    Crosstalk measuring method and crosstalk measuring device
    1.
    发明授权
    Crosstalk measuring method and crosstalk measuring device 有权
    串扰测量方法和串扰测量装置

    公开(公告)号：US09252872B2

    公开(公告)日：2016-02-02

    申请号：US13923990

    申请日：2013-06-21

    Applicant: FUJIKURA LTD. ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Hiroki Hamaguchi ,  Shoichiro Matsuo ,  Itaru Ishida ,  Yukihiro Goto ,  Kazuhide Nakajima

    IPC: H04B10/08 ,  H04B10/079 ,  G02B6/02 ,  H04B10/071

    CPC classification number: H04B10/0795 ,  G02B6/02042 ,  H04B10/071

    Abstract: For example, of a first intensity distribution waveform WF1 indicated by a distance distribution of an intensity of light which returns to one end of a core of a multicore fiber, and a second intensity distribution waveform WF2 indicated by a distance distribution of an intensity of light which returns to the other end of the core, the second intensity distribution waveform WF2 is inverted. Further, for example, an inverted intensity distribution waveform WF3 which is inverted and the first intensity distribution waveform WF1 which is not inverted are added.

    Abstract translation: 例如，由返回到多芯光纤的芯的一端的光的强度的距离分布表示的第一强度分布波形WF1和由光强度的距离分布表示的第二强度分布波形WF2 其返回到核心的另一端，第二强度分布波形WF2被反转。 此外，例如，反相的反转强度分布波形WF3和未反转的第一强度分布波形WF1相加。

    Alignment device, splicing device, aligning method, and splicing method for optical fibers
    2.
    发明授权
    Alignment device, splicing device, aligning method, and splicing method for optical fibers 有权

    公开(公告)号：US10025032B2

    公开(公告)日：2018-07-17

    申请号：US15019416

    申请日：2016-02-09

    Applicant: FUJIKURA LTD.

    Inventor： Hiroki Hamaguchi ,  Nobuo Kuwaki

    IPC: G02B6/255 ,  G02B6/02 ,  G02B6/42 ,  G06T7/00

    Abstract: An optical fiber alignment device includes an image-capturing device capturing images of end surfaces of two optical fibers; an image-analyzing device obtaining position coordinates of two or more cores in the end surfaces from the image captured by the image-capturing device for each of the two optical fibers; a calculation device substituting the position coordinates of the cores obtained for each of the optical fibers in a theoretical equation that represents a total sum of axial deviation losses at the time of splicing the cores to each other, the calculation device obtaining a positional relationship between the end surfaces of the optical fibers from the theoretical equation such that the total sum of the axial deviation losses becomes a minimum; and a driving device arranging the optical fibers such that the end surfaces of the optical fibers satisfy the positional relationship obtained by the calculation device.

    Method of processing optical fiber
    3.
    发明授权
    Method of processing optical fiber 有权

    公开(公告)号：US09919964B2

    公开(公告)日：2018-03-20

    申请号：US14791624

    申请日：2015-07-06

    Applicant: FUJIKURA LTD.

    Inventor： Hiroki Hamaguchi

    IPC: C03C25/60 ,  G02B6/02 ,  G01M11/00 ,  C03B37/01 ,  C03C13/04 ,  C03C25/10

    CPC classification number: C03C25/607 ,  C03B37/01 ,  C03B2201/22 ,  C03C13/047 ,  C03C25/106 ,  C03C2201/22 ,  C03C2203/54 ,  G02B6/02 ,  Y02P40/57

    Abstract: A method of processing an optical fiber of the invention includes: a determination step of determining at least an ambient temperature of conditions of a diffusion treatment that causing an optical fiber to be subjected to an non-oxygen bridging atmosphere; an exposure step of exposing the optical fiber to a gas including an oxygen bridging element that is capable of processing the Non-Bridging Oxygen Hole Centers by being bonded to a non-bridging oxygen in the optical fiber, and causing the oxygen bridging element to infiltrate into the optical fiber; and a diffusion step of subsequently causing the optical fiber to be subjected to the non-oxygen bridging atmosphere in the exposure ambient temperature which is determined by the determination step and at which the optical fiber is subjected to the non-oxygen bridging atmosphere, and thereby diffusing the oxygen bridging element into the optical fiber.

    PROCESS FOR PRODUCING OPTICAL FIBER AND PROCESSING APPARATUS FOR OPTICAL FIBER WORK USED FOR THE SAME
    4.
    发明申请
    PROCESS FOR PRODUCING OPTICAL FIBER AND PROCESSING APPARATUS FOR OPTICAL FIBER WORK USED FOR THE SAME 有权
    用于生产光纤的方法和用于其的光纤工艺的处理装置

    公开(公告)号：US20130333421A1

    公开(公告)日：2013-12-19

    申请号：US13911507

    申请日：2013-06-06

    Applicant: FUJIKURA LTD.

    Inventor： Hiroki Hamaguchi ,  Shunichirou Hirafune ,  Itaru Ishida

    IPC: C03B37/02

    CPC classification number: C03B37/0216 ,  C03B37/01257 ,  C03B37/0126 ,  C03B37/0142 ,  C03B37/0146 ,  C03B37/01486 ,  C03B37/01815 ,  C03B37/01884 ,  C03B37/02736 ,  C03B2207/46

    Abstract: Provided is a process for producing an optical fiber including a processing process where an optical fiber work made of a glass is held by a processing apparatus for an optical fiber work to be heated and processed, wherein in the processing process, vibration caused by an abnormality of the optical fiber work in the heated state or vibration caused by an abnormality of a glass body which is a portion of the processing apparatus for an optical fiber work and is in the state where the glass body portion is heated due to the heating of the optical fiber work is detected by using an acoustic emission sensor.

    Abstract translation: 本发明提供一种光纤的制造方法，其特征在于，包括由用于加工和加工的光纤加工的加工装置保持由玻璃制成的光纤作业的处理工序，其中，在处理工序中，由异常引起的振动 的光纤工作在加热状态或由作为光纤加工装置的一部分的玻璃体的异常引起的振动，并且处于玻璃体部被加热的状态 通过使用声发射传感器来检测光纤作业。

    Optical fiber winding reel and reel-wound optical fiber
    5.
    发明授权
    Optical fiber winding reel and reel-wound optical fiber 有权

    公开(公告)号：US09624069B2

    公开(公告)日：2017-04-18

    申请号：US14600669

    申请日：2015-01-20

    Applicant: FUJIKURA LTD.

    Inventor： Hiroki Hamaguchi ,  Shunichirou Hirafune

    IPC: B65H75/14 ,  B65H75/28 ,  G02B6/44

    CPC classification number: B65H75/14 ,  B65H75/28 ,  B65H2701/32 ,  G02B6/4457

    Abstract: An optical fiber winding reel of the invention includes: a cylindrical main winding body; main flanges provided at both respective ends of the main winding body in an axis direction thereof; and an auxiliary winding body provided outside at least one of the main flanges, wherein a slit that extends toward a central axis line of a reel is formed at part in a circumferential direction of the main flange at which the auxiliary winding body is provided, and both side portions of a position of the main flange at which the slit is formed are a low rigidity region, the low rigidity region has a rigidity locally lower than that of the other portions in a direction orthogonal to a plate surface of the main flange.

    CROSSTALK MEASURING METHOD AND CROSSTALK MEASURING DEVICE
    6.
    发明申请
    CROSSTALK MEASURING METHOD AND CROSSTALK MEASURING DEVICE 有权
    CROSSTALK测量方法和CROSSTALK测量装置

    公开(公告)号：US20140003807A1

    公开(公告)日：2014-01-02

    申请号：US13923990

    申请日：2013-06-21

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION ,  FUJIKURA LTD.

    Inventor： Hiroki Hamaguchi ,  Shoichiro Matsuo ,  Itaru Ishida ,  Yukihiro Goto ,  Kazuhide Nakajima

    IPC: H04B10/079

    CPC classification number: H04B10/0795 ,  G02B6/02042 ,  H04B10/071

    Abstract: For example, of a first intensity distribution waveform WF1 indicated by a distance distribution of an intensity of light which returns to one end of a core of a multicore fiber, and a second intensity distribution waveform WF2 indicated by a distance distribution of an intensity of light which returns to the other end of the core, the second intensity distribution waveform WF2 is inverted. Further, for example, an inverted intensity distribution waveform WF3 which is inverted and the first intensity distribution waveform WF1 which is not inverted are added.

    Abstract translation: 例如，由返回到多芯光纤的芯的一端的光的强度的距离分布表示的第一强度分布波形WF1和由光强度的距离分布表示的第二强度分布波形WF2 其返回到核心的另一端，第二强度分布波形WF2被反转。 此外，例如，反相的反转强度分布波形WF3和未反转的第一强度分布波形WF1相加。

Patent Agency Ranking