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公开(公告)号：US10031395B2
公开(公告)日：2018-07-24
申请号：US15416719
申请日：2017-01-26
Inventor： Yusuke Saito , Takehito Tanaka
Abstract: The present invention provides an optical modulator, which can be reduced in size with size reduction of an optical waveguide and electric wiring as compared to a conventional optical modulator. An optical modulator according to an embodiment includes a substrate; an optical waveguide provided on the substrate and configured to guide light; a modulation unit formed of part of the optical waveguide and configured to modulate the light; and electric wires provided on the substrate and configured to supply a high-frequency electric signal to the modulation unit. One end portion and another end portion of the optical waveguide are provided on a first end surface, one end portion of the electric wiring is provided along the first end surface, another end portion of the electric wiring is provided along a second end surface being different from the first end surface.
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公开(公告)号：US20170033884A1
公开(公告)日：2017-02-02
申请号：US15134622
申请日：2016-04-21
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki SUGIYAMA , Takehito Tanaka
IPC: H04J14/06 , H04B10/532
CPC classification number: H04J14/06 , H04B10/2572 , H04B10/532
Abstract: An optical module has an optical modulator configured to perform phase modulation on each of divided light components of an input light and output at least two phase-modulated signal lights, a semiconductor optical amplifier configured to amplify the phased-modulated signal lights in a same polarization mode, and a polarization multiplexer configured to convert the amplified signal lights into two orthogonally polarized signal lights and multiplex the orthogonally polarized signal lights.
Abstract translation: 一种光学模块，具有：光调制器，被配置为对输入光的分光分量进行相位调制，并输出至少两个相位调制信号光;半导体光放大器，被配置为放大相位偏振的相位调制信号光 模式，以及偏振复用器，被配置为将放大的信号光转换成两个正交偏振信号光并将正交偏振信号光多路复用。
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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
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。
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公开(公告)号：US09231728B2
公开(公告)日：2016-01-05
申请号：US14324552
申请日：2014-07-07
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama , Seimi Sasaki , Takehito Tanaka
CPC classification number: H04J14/06 , G02F1/0121 , G02F1/2255 , G02F2001/212 , G02F2201/127
Abstract: An optical module includes a waveguide substrate having an optical waveguide and electrodes that apply electronic signals to the optical waveguide; a relay substrate disposed adjacently to the waveguide substrate; and a termination substrate disposed sandwiching the waveguide substrate with the relay substrate. The electrodes respectively have a first wiring portion connected from the relay substrate through the waveguide substrate to the termination substrate and a second wiring portion extending from the first wiring portion and branching on the termination substrate. In the second wiring portion, one branched wiring portion has a capacitor and a termination resistor, and another branched wiring portion extends through a bias resistor to a DC electrode on the relay substrate. The second wiring portion is divided into a first group extending in a first direction along the optical waveguide and a second group extending in a direction opposite to the first direction.
Abstract translation: 光学模块包括具有光波导的波导基板和向光波导施加电子信号的电极; 与所述波导基板相邻设置的继电器基板; 以及将所述波导基板与所述中继基板夹持的端接基板。 所述电极分别具有从所述中继基板通过所述波导基板连接到所述端接基板的第一布线部以及从所述第一布线部延伸并在所述端接基板上分支的第二布线部。 在第二布线部分中，一个分支布线部分具有电容器和终端电阻器，另一个分支布线部分通过偏置电阻器延伸到继电器基板上的直流电极。 第二布线部分被分成沿着光波导沿第一方向延伸的第一组和沿与第一方向相反的方向延伸的第二组。
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公开(公告)号：US09638927B2
公开(公告)日：2017-05-02
申请号：US14617238
申请日：2015-02-09
Applicant: Fujitsu Optical Components Limited
Inventor： Seimi Sasaki , Kohei Shibata , Teruhiro Kubo , Shinji Maruyama , Shintaro Takeuchi , Hiroshi Kato , Takehito Tanaka
CPC classification number: G02B27/283 , G02B7/1805 , G02B27/286 , G02F1/025
Abstract: A polarization combiner includes: a base member that includes a body portion, an arm portion extending from the body portion, and a notch portion surrounded with the body portion and the arm portion; a polarization rotating element that is fixed to the arm portion of the base member and that rotates a polarization direction of a first polarized wave; and a polarization combining element that is fixed to the base member so as to face the notch portion of the base member and the polarization rotating element, the polarization combining element combining two polarized waves entering from a surface facing the notch portion and the polarization rotating element, the two polarized waves including the first polarized wave whose polarization direction is rotated by the polarization rotating element and a second polarized wave passing the notch portion.
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Patent Agency Ranking
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
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.
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公开(公告)号：US09461753B2
公开(公告)日：2016-10-04
申请号：US14607576
申请日：2015-01-28
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Shintaro Takeuchi , Takehito Tanaka
CPC classification number: H04B10/613 , G02F1/0147 , G02F1/225 , G02F2203/48 , H04B10/25 , H04B10/611 , H04B10/614 , H04B10/6162
Abstract: An optical receiver circuit includes a polarization beam splitter configured to split input signal light into two different polarized wave components; two variable optical attenuators configured to respectively adjust attenuation of and output the signal light split by the polarization beam splitter according to polarization state; and a single planar optical waveguide on which the polarization beam splitter and the two variable optical attenuators are disposed.
Abstract translation: 光接收器电路包括被配置为将输入信号光分成两个不同偏振波分量的偏振分束器; 两个可变光衰减器，被配置为分别根据偏振状态调节由偏振分束器分离的信号光的衰减和输出; 以及设置偏振分束器和两个可变光衰减器的单个平面光波导。
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公开(公告)号：US09448424B2
公开(公告)日：2016-09-20
申请号：US14629913
申请日：2015-02-24
Applicant: Fujitsu Optical Components Limited
Inventor： Kohei Shibata , Seimi Sasaki , Teruhiro Kubo , Shinji Maruyama , Shintaro Takeuchi , Hiroshi Kato , Takehito Tanaka
CPC classification number: G02F1/025 , G02B6/122 , G02B6/125 , G02B6/30 , G02B6/32 , G02B6/3897 , G02B6/4206 , G02B2006/12142
Abstract: An optical module connected to an optical fiber for transmitting light includes: a substrate; a ferrule that is formed from a material capable of transmitting therethrough light having a predetermined wavelength, accommodates an end of the optical fiber, and is fixed on the substrate with a fixing agent cured by being irradiated with the light capable of passing through the material; and a semiconductor chip that is disposed on the substrate and modulates light emitted from the end of the optical fiber accommodated in the ferrule.
Abstract translation: 连接到用于透射光的光纤的光学模块包括：基板; 由能够通过具有预定波长的光透射的材料形成的套圈，容纳光纤的端部，并且通过用能够穿过材料的光照射固化的固定剂固定在基板上; 以及半导体芯片，其设置在基板上并且调制从容纳在套圈中的光纤的端部发射的光。
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公开(公告)号：US20150253595A1
公开(公告)日：2015-09-10
申请号：US14629913
申请日：2015-02-24
Applicant: Fujitsu Optical Components Limited
Inventor： Kohei Shibata , Seimi Sasaki , Teruhiro Kubo , Shinji Maruyama , Shintaro Takeuchi , Hiroshi Kato , Takehito Tanaka
CPC classification number: G02F1/025 , G02B6/122 , G02B6/125 , G02B6/30 , G02B6/32 , G02B6/3897 , G02B6/4206 , G02B2006/12142
Abstract: An optical module connected to an optical fiber for transmitting light includes: a substrate; a ferrule that is formed from a material capable of transmitting therethrough light having a predetermined wavelength, accommodates an end of the optical fiber, and is fixed on the substrate with a fixing agent cured by being irradiated with the light capable of passing through the material; and a semiconductor chip that is disposed on the substrate and modulates light emitted from the end of the optical fiber accommodated in the ferrule.
Abstract translation: 连接到用于透射光的光纤的光学模块包括：基板; 由能够通过具有预定波长的光透射的材料形成的套圈，容纳光纤的端部，并且通过用能够穿过材料的光照射固化的固定剂固定在基板上; 以及半导体芯片，其设置在基板上并且调制从容纳在套圈中的光纤的端部发射的光。
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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
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。
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