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公开(公告)号：US20210270698A1
公开(公告)日：2021-09-02
申请号：US17135178
申请日：2020-12-28
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki SUGIYAMA
Abstract: An optical device cut from a wafer into a chip by dicing, on the wafer, the optical device includes a plurality of optical waveguides; an optical circuit connected to the optical waveguide; and of the plurality of optical waveguides, a testing optical waveguide that guides test light to the optical circuit to be tested, by bypassing a non-connected optical waveguide portion at a terrace for mounting an optical chip component.
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公开(公告)号：US20150261063A1
公开(公告)日：2015-09-17
申请号：US14628744
申请日：2015-02-23
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki SUGIYAMA
IPC: G02F1/225
CPC classification number: G02F1/225 , G02F1/0356 , G02F2001/212
Abstract: An optical module includes a first substrate and a second substrate. The first substrate includes a first electrode and a first mark. The second substrate includes a second electrode and a second mark. The second substrate is formed so that at least part of the first mark is exposed in the vicinity of the second mark when the second electrode is electrically connected to the first electrode.
Abstract translation: 光学模块包括第一基板和第二基板。 第一基板包括第一电极和第一标记。 第二基板包括第二电极和第二标记。 第二基板被形成为使得当第二电极与第一电极电连接时，第一标记的至少一部分暴露在第二标记附近。
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公开(公告)号：US20150117867A1
公开(公告)日：2015-04-30
申请号：US14588684
申请日：2015-01-02
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Masaki SUGIYAMA
CPC classification number: G02F1/225 , G02F1/0316 , G02F2201/05 , H04B10/501 , H04B10/505
Abstract: An optical modulator includes: a substrate that having an optical waveguide that includes a split section that splits light into two light waves, a pair of arms through which the light waves propagate, and a combining section that combines the light waves from the pair of arms with each other; and an electrode that overlaps part of the optical waveguide and generates an electric field by a voltage applied to the electrode. The optical waveguide has a narrow portion that is narrower than another portion of the optical waveguide and is arranged so that the electrode does not overlap with the narrow portion.
Abstract translation: 光学调制器包括：具有光波导的基板，该光波导包括将光分成两个光波的分割部分，光波传播的一对臂，以及组合来自一对臂的光波的组合部分 彼此; 以及与光波导的一部分重叠并通过施加到电极的电压而产生电场的电极。 光波导具有比光波导的另一部分窄的狭窄部分，并且布置成使得电极不与窄部重叠。
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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
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。
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公开(公告)号：US20140355924A1
公开(公告)日：2014-12-04
申请号：US14250760
申请日：2014-04-11
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki SUGIYAMA
IPC: G02F1/225
CPC classification number: G02F1/225 , G02F2001/212
Abstract: An optical modulator includes: a substrate that has electrooptical effect and has a Mach-Zehnder modulator that has a 2×2 coupler acting as a splitter, two intermediate waveguides coupled to outputting waveguides of the splitter and another 2×2 coupler acting as a combiner coupled to the two intermediate waveguides; and a suppresser that suppresses a power of an output light from an uncoupled waveguide and an input light into the uncoupled waveguide of at least one of the 2×2 couplers in an extending direction of the Mach-Zehnder modulator.
Abstract translation: 光调制器包括：具有电光效应的基片，具有马赫 - 曾德调制器，该调制器具有2×2耦合器作为分路器，耦合到输出分路器的波导的两个中间波导管和作为组合器的另一个2×2耦合器 耦合到两个中间波导; 以及抑制器，其抑制来自马赫 - 曾德尔调制器的延伸方向的来自未耦合波导和输入光的输出光的功率到至少一个2×2耦合器的非耦合波导中。
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Patent Agency Ranking
公开(公告)号：US20130251303A1
公开(公告)日：2013-09-26
申请号：US13898852
申请日：2013-05-21
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki SUGIYAMA
IPC: G02F1/035
CPC classification number: G02F1/035 , G02F1/225 , G02F2201/122 , G02F2201/18
Abstract: An optical device includes first and second optical modulators formed on a substrate having electro-optical effect. The first optical modulator includes a first optical waveguide; a first signal electrode configured to provide a first data signal for the first optical waveguide; and a first DC electrode, arranged at an output side of the first signal electrode, and configured to provide first DC voltage for the first optical waveguide. The second optical modulator includes a second optical waveguide; a second signal electrode configured to provide a second data signal for the second optical waveguide; and a second DC electrode provided, arranged at an input side of the second signal electrode, and configured to provide second DC voltage for the second optical waveguide. Input portions of the first and second signal electrodes are arranged at a same side edge of the substrate.
Abstract translation: 光学器件包括形成在具有电光效应的衬底上的第一和第二光学调制器。 第一光调制器包括第一光波导; 第一信号电极，被配置为提供第一光波导的第一数据信号; 以及第一直流电极，配置在第一信号电极的输出侧，构成为第一光波导提供第一直流电压。 第二光调制器包括第二光波导; 第二信号电极，被配置为为所述第二光波导提供第二数据信号; 以及第二直流电极，设置在所述第二信号电极的输入侧，并且被配置为为所述第二光波导提供第二直流电压。 第一和第二信号电极的输入部分布置在基板的相同的侧边缘处。
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公开(公告)号：US20250060620A1
公开(公告)日：2025-02-20
申请号：US18765935
申请日：2024-07-08
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Masaki SUGIYAMA , Suguru AKIYAMA
IPC: G02F1/035
Abstract: An optical device has a first chip including a first waveguide and a first electrode, and a second chip mounted on the first chip and including a second waveguide and a second electrode. The second waveguide has an electro-optic effect higher than an electro-optic effect of the first waveguide and has a return structure that places an end of the second waveguide at an end face of the second chip. The second waveguide has been optically coupled to the first waveguide at the end face. The second electrode has a return structure that places an end of the second electrode at the end face, and the second electrode and the first electrode are electrically connected to each other in an area where the end of the second electrode has been placed.
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公开(公告)号：US20240407104A1
公开(公告)日：2024-12-05
申请号：US18666312
申请日：2024-05-16
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Masaki SUGIYAMA
Abstract: An optical module includes a first component, a second component, and an FPC that electrically connects the first component and the second component. The FPC includes a signal pad, a ground pad, a signal line, a ground pattern, a first coverlay including a first protrusion part, and a second coverlay including a second protrusion part. The first protrusion part covers a region on the FPC where the signal line is disposed, and protrudes at a location where the signal pad is disposed, toward an end part of the FPC on the first component side than the region where the signal line is disposed. The second protrusion part protrudes at a location where the signal pad is disposed, toward an end part of the FPC on the first component side, and covers a region on the ground pattern facing at least the signal pad.
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公开(公告)号：US20240134116A1
公开(公告)日：2024-04-25
申请号：US18235930
申请日：2023-08-20
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Masaki SUGIYAMA
IPC: G02B6/122
CPC classification number: G02B6/1228
Abstract: An optical device includes a first layer, a second layer, two first waveguides arranged in a side by side manner in the first layer; two second waveguides arranged in a side by side manner in the second layer, and a third waveguide arranged between the first waveguides and between the second waveguides. The first waveguide includes a first tapered waveguide and a second tapered waveguide. The third waveguide includes a third tapered waveguide that is disposed side by side with the second tapered waveguides. The first tapered waveguide has a width that is gradually narrower as the first tapered waveguide is away from a joining point with the second tapered waveguide. The second tapered waveguide has a width that is gradually narrower as the second tapered waveguide is away from a joining point with the first tapered waveguide. The third tapered waveguide has a width that is gradually wider.
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公开(公告)号：US20230333439A1
公开(公告)日：2023-10-19
申请号：US18165039
申请日：2023-02-06
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki SUGIYAMA
CPC classification number: G02F1/2252 , G02F1/212 , G02F1/0121 , H04J14/06 , G02F2201/12 , G02F2201/17 , G02F2203/50
Abstract: An optical modulator includes a first shifter and a second shifter. The first shifter includes a first waveguide through which first light passes, and a first electrode that causes power according to a drive voltage to act on the first waveguide. The first shifter shifts a phase of the first light passing through the first waveguide in accordance with the drive voltage applied to the first electrode. The second shifter includes a second waveguide through which second light passes, and a second electrode that causes power according to a drive voltage to act on the second waveguide. The second shifter shifts a phase of the second light passing through the second waveguide in accordance with the drive voltage applied to the second electrode. The second shifter is constituted to have a smaller amount of phase shift according to a predetermined amount of drive voltage than the first shifter.
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