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    Optical transmitter
    2.
    发明授权
    Optical transmitter 有权

    公开(公告)号：US09638861B2

    公开(公告)日：2017-05-02

    申请号：US14631358

    申请日：2015-02-25

    Applicant: Fujitsu Optical Components Limited

    Inventor： Shinji Maruyama ,  Seimi Sasaki ,  Kohei Shibata ,  Teruhiro Kubo ,  Shintaro Takeuchi ,  Hiroshi Kato ,  Takehito Tanaka

    IPC: G02B6/32 ,  G02B6/30 ,  G02B6/34

    CPC classification number: G02B6/32 ,  G02B6/30 ,  G02B6/34

    Abstract: A first lens transmits a beam of light having a vertical cross-sectional diameter made closer to a horizontal cross-sectional diameter. The beam of light is emitted from an optical waveguide on a substrate and configured such that the vertical cross-sectional diameter which is the diameter of a vertical cross section along the direction of the thickness of the substrate is greater than the horizontal cross-sectional diameter which is the diameter of a horizontal cross section along the direction of the width of the substrate. A second lens is disposed at a position, at which the vertical cross-sectional diameter and the horizontal cross-sectional diameter coincide with each other, so as to focus the beam of light on the optical fiber. The position is closer to the optical fiber than the first lens along the direction of travel of the beam of light transmitted by the first lens.

    OPTICAL TRANSMITTER
    5.
    发明申请
    OPTICAL TRANSMITTER 有权
    光学发射器

    公开(公告)号：US20150253506A1

    公开(公告)日：2015-09-10

    申请号：US14631358

    申请日：2015-02-25

    Applicant: Fujitsu Optical Components Limited

    Inventor： Shinji MARUYAMA ,  Seimi Sasaki ,  Kohei Shibata ,  Teruhiro Kubo ,  Shintaro Takeuchi ,  Hiroshi Kato ,  Takehito Tanaka

    IPC: G02B6/32

    CPC classification number: G02B6/32 ,  G02B6/30 ,  G02B6/34

    Abstract: A first lens transmits a beam of light having a vertical cross-sectional diameter made closer to a horizontal cross-sectional diameter. The beam of light is emitted from an optical waveguide on a substrate and configured such that the vertical cross-sectional diameter which is the diameter of a vertical cross section along the direction of the thickness of the substrate is greater than the horizontal cross-sectional diameter which is the diameter of a horizontal cross section along the direction of the width of the substrate. A second lens is disposed at a position, at which the vertical cross-sectional diameter and the horizontal cross-sectional diameter coincide with each other, so as to focus the beam of light on the optical fiber. The position is closer to the optical fiber than the first lens along the direction of travel of the beam of light transmitted by the first lens.

    Abstract translation: 第一透镜透射具有更接近水平横截面直径的垂直截面直径的光束。 光束从基板上的光波导发射，并且被构造为使得沿着基板的厚度方向的垂直截面的直径的垂直截面直径大于水平截面直径 其是沿着基板的宽度方向的水平横截面的直径。 第二透镜设置在垂直截面直径和水平横截面直径彼此重合的位置处，以将光束聚焦在光纤上。 沿着由第一透镜透射的光束的行进方向，位置比第一透镜更靠近光纤。

    WAVELENGTH MONITORING DEVICE, LIGHT SOURCE DEVICE, AND OPTICAL MODULE
    6.
    发明申请
    WAVELENGTH MONITORING DEVICE, LIGHT SOURCE DEVICE, AND OPTICAL MODULE 审中-公开

    公开(公告)号：US20180316154A1

    公开(公告)日：2018-11-01

    申请号：US15935886

    申请日：2018-03-26

    Applicant: Fujitsu Optical Components Limited

    Inventor： Tomonori Azuma ,  Kohei Shibata

    IPC: H01S3/13 ,  G02B27/28 ,  H01S3/04 ,  G02B17/00

    Abstract: A wavelength monitoring device includes a polarization rotation element; an etalon element that includes a first double refractive layer and a single refractive layer or a second double refractive layer that is disposed by rotating an optic axis of the second double refractive layer with respect to an optic axis of the first double refractive layer; a polarization separating element that separates an input light, which has the polarization direction rotated and is transmitted through the etalon element, into first light having a polarization direction parallel to the optic axis of the first double refractive layer and second light having a polarization direction perpendicular to the optic axis of the first double refractive layer; a first light receiving device that receives the first light to detect a first monitor value; and a second light receiving device that receives the second light to detect a second monitor value.

    Optical receiving apparatus, optical transmitter and receiver module, and optical transmitting and receiving apparatus
    7.
    发明授权
    Optical receiving apparatus, optical transmitter and receiver module, and optical transmitting and receiving apparatus 有权
    光接收装置，光发射机和接收机模块以及光发射和接收装置

    公开(公告)号：US09461754B2

    公开(公告)日：2016-10-04

    申请号：US14498077

    申请日：2014-09-26

    Applicant: Fujitsu Optical Components Limited

    Inventor： Hirohiko Sonoda ,  Kohei Shibata ,  Takuya Nakao ,  Yasuhiro Yamauchi ,  Ryuichi Yoshida ,  Hiroyuki Furukawa

    IPC: H04B10/06 ,  H04B10/00 ,  G02B6/12 ,  G02B6/28 ,  H04B10/61 ,  H04B10/079 ,  G02B6/42 ,  H04B10/40

    CPC classification number: H04B10/614 ,  G02B6/42 ,  H04B10/07955 ,  H04B10/40 ,  H04B10/615

    Abstract: A housing accommodates an optical waveguide substrate, plural signal light receiving elements, and a signal-light-level monitoring light receiving element. Signal light and locally oscillated light are input into optical waveguides in the optical waveguide substrate from a first end face of the optical waveguide substrate. The plural signal light receiving elements are disposed aligned on a side of a second end face opposite to a side of the first end face of the optical waveguide substrate. The signal-light-level monitoring light receiving element is disposed on a side of a third end face or a fourth end face between the first end face and the second end face of the optical waveguide substrate and at a position closer to the first end face than to the second end face.

    Abstract translation: 壳体容纳光波导基板，多个信号光接收元件和信号光级监视光接收元件。 信号光和本地振荡光从光波导基板的第一端面输入到光波导基板中的光波导中。 多个信号光接收元件在与光波导基板的第一端面的相反侧的第二端面的一侧排列。 信号光级监视光接收元件设置在光波导基板的第一端面和第二端面之间的第三端面或第四端面的一侧，并且在靠近第一端面的位置 而不是第二个端面。

    Optical transmitting apparatus
    8.
    发明授权
    Optical transmitting apparatus 有权
    光发射装置

    公开(公告)号：US09405081B2

    公开(公告)日：2016-08-02

    申请号：US14629899

    申请日：2015-02-24

    Applicant: Fujitsu Optical Components Limited

    Inventor： Shinji Maruyama ,  Seimi Sasaki ,  Kohei Shibata ,  Teruhiro Kubo ,  Shintaro Takeuchi ,  Hiroshi Kato ,  Takehito Tanaka

    IPC: G02B6/00 ,  G02B6/42 ,  G02F1/225

    CPC classification number: G02B6/4244 ,  G02F1/225 ,  G02F2201/18 ,  G02F2201/58 ,  G02F2203/28

    Abstract: An optical transmitting apparatus includes: a substrate; optical modulators that are arranged in parallel to one another on the substrate and modulate light; waveguides that are formed on the substrate and guide signal light represented by at least one of modulated light beams obtained by the light being modulated by the plurality of optical modulators and monitor light represented by at least another one of the modulated light beams other than the signal light; lenses that collimate the signal light and the monitor light emitted from the waveguides; and a holding member that causes the signal light and the monitor light to be emitted from the lenses in mutually-different directions, by holding the lenses in such a manner that the optical axis of at least one of the lenses is out of alignment in a predetermined direction with the optical axis of at least one of the waveguides.

    Abstract translation: 光发送装置包括：基板; 在衬底上彼此平行布置并调制光的光学调制器; 形成在基板上的波导，并且引导由由多个光调制器调制的光获得的调制光束中的至少一个所表示的信号光，并且监视由除信号之外的至少另一个调制光束表示的光 光; 准直信号光和从波导发射的监视光的透镜; 以及保持构件，其通过以这样的方式保持透镜来使信号光和监视光从透镜发射在相互不同的方向上，使得至少一个透镜的光轴在 预定方向与至少一个波导的光轴。

    Polarization coupling device and optical modulation device
    10.
    发明授权
    Polarization coupling device and optical modulation device 有权

    公开(公告)号：US10578885B2

    公开(公告)日：2020-03-03

    申请号：US15868332

    申请日：2018-01-11

    Applicant: Fujitsu Optical Components Limited

    Inventor： Seimi Sasaki ,  Hiroshi Kato ,  Kohei Shibata ,  Takehito Tanaka

    IPC: G02B5/30 ,  G02B27/28 ,  G02B6/27 ,  G02B6/28 ,  G02B6/26

    Abstract: A polarization coupling device includes a polarization combining element. The polarization combining element includes a polarization rotating unit that rotates a polarization direction of a first polarized wave incident on the polarization combining element, and a polarization combining unit that combines the first polarized wave with the polarization direction rotated by the polarization rotating unit and a second polarized wave incident on the polarization combining element with each other, and the polarization rotating unit and the polarization combining unit are integrated with each other. Due to this configuration, the polarization coupling device has an effect where downscaling of the device can be advanced.

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