公开(公告)号：US20230238774A1

公开(公告)日：2023-07-27

申请号：US18065954

申请日：2022-12-14

Applicant: Fujitsu Optical Components Limited

Inventor： Hirotomo IZUMI ,  Suguru AKIYAMA ,  Ayahito UETAKE ,  Seimi SASAKI

IPC: H01S5/10 ,  H01S5/14 ,  H01S5/50 ,  H01S5/026

CPC classification number: H01S5/1014 ,  H01S5/141 ,  H01S5/50 ,  H01S5/026

Abstract: A wavelength tunable laser device includes: a first mirror; a second mirror; an optical amplifier provided between the first mirror and the second mirror; a wavelength tunable filter provided between the first mirror and the second mirror; and an optical waveguide coupling the optical amplifier and the wavelength tunable filter. The optical waveguide includes a first waveguide formed with a first width and a second waveguide formed with a second width wider than the first width.

公开(公告)号：US20150253582A1

公开(公告)日：2015-09-10

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

IPC: G02B27/28 ,  G02F1/025

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.

Abstract translation: 偏振组合器包括：基部构件，其包括主体部分，从主体部分延伸的臂部分和由主体部分和臂部分围绕的切口部分; 偏振旋转元件，其固定到所述基座的臂部，并且旋转第一偏振波的偏振方向; 以及偏振组合元件，其固定到所述基底构件以面对所述基底构件和所述偏振旋转元件的所述切口部分，所述偏振组合元件组合从面向所述切口部分的表面进入的两个偏振波和所述偏振旋转元件 包括偏振方向由偏振旋转元件旋转的第一偏振波和通过切口部的第二偏振波的两个偏振波。

公开(公告)号：US20150063809A1

公开(公告)日：2015-03-05

申请号：US14324552

申请日：2014-07-07

Applicant: Fujitsu Optical Components Limited

Inventor： Masaki SUGIYAMA ,  Seimi SASAKI ,  Takehito TANAKA

IPC: G02F1/225 ,  H04J14/06

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和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。

公开(公告)号：US20180120522A1

公开(公告)日：2018-05-03

申请号：US15678568

申请日：2017-08-16

Applicant: Fujitsu Optical Components Limited

Inventor： Hiroshi KATO ,  Seimi SASAKI

IPC: G02B6/42 ,  G02F1/225

CPC classification number: G02B6/4206 ,  G02B6/30 ,  G02B6/4213 ,  G02B6/4257 ,  G02B6/4286 ,  G02B6/4295 ,  G02F1/225 ,  G02F1/2252 ,  G02F2001/212 ,  G02F2201/58

Abstract: An optical module includes a substrate with a plurality of pairs, which are parallel to each other, spaced in a width direction of the substrate, of optical waveguides formed thereon, each pair being made up of a first optical waveguide that guides a first beam and a second optical waveguide that guides a second beam that monitors the first beam, and a lens that has an incident surface facing at least one pair of the plurality of pairs, collimates, for each of the at least one pair, the first and second beams that emerge from the pair and that differ from each other in at least any one of their incident positions and incident directions on the incident surface, and directs the first and second beams having been collimated and leaving the lens in different directions that depend on the incident positions or the incident directions.

公开(公告)号：US20150078763A1

公开(公告)日：2015-03-19

申请号：US14445388

申请日：2014-07-29

Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

Inventor： Masaki SUGIYAMA ,  Seimi SASAKI ,  Takehito TANAKA

IPC: G02F1/225 ,  H04B10/532 ,  H04B10/50

CPC classification number: G02F1/225 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/16 ,  H04B10/501 ,  H04B10/532

Abstract: An optical module includes a waveguide substrate including an optical waveguide and electrodes that apply electronic signals to the optical waveguide; a relay substrate disposed adjacent to the waveguide substrate; a terminal substrate disposed adjacent to the waveguide substrate and opposite to the relay substrate across the waveguide substrate; and a carrier substrate on which the waveguide substrate, the relay substrate, and the terminal substrate are mounted. The electrodes have a first interconnect unit from the relay substrate to the terminal substrate via the waveguide substrate and second interconnect units from the first interconnect unit and branching on the terminal substrate. Among the second interconnect units, a first interconnect branch includes a capacitor and a terminal resistor; and a second interconnect branch is connected to an interconnect of the carrier substrate via a bias resistor, passes under the waveguide substrate to a DC electrode for bias-adjusting on the relay substrate.

Abstract translation: 光学模块包括：包括光波导的波导基板和向光波导施加电子信号的电极; 邻近所述波导基板设置的继电器基板; 端子基板，其布置成与所述波导基板相邻并且跨越所述波导基板与所述中继基板相对; 以及其上安装有波导基板，中继基板和端子基板的载体基板。 电极具有经由波导基板从中继基板到端子基板的第一互连单元，以及来自第一互连单元的第二互连单元并在端子基板上分支。 在第二互连单元中，第一互连支路包括电容器和端子电阻器; 并且第二互连支路经由偏置电阻器连接到载体衬底的互连件，在波导衬底下方通过直流电极以在继电器衬底上进行偏置调节。

公开(公告)号：US20180196277A1

公开(公告)日：2018-07-12

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: G02B27/28 ,  G02B6/27

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.

公开(公告)号：US20150253521A1

公开(公告)日：2015-09-10

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: G02B6/42

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。