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公开(公告)号：US20160011486A1
公开(公告)日：2016-01-14
申请号：US14714408
申请日：2015-05-18
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki SUGIYAMA
IPC: G02F1/21 , G02F1/01 , H04B10/556 , G02F1/225
CPC classification number: G02F1/21 , G02F1/0121 , G02F1/0305 , G02F1/225 , G02F1/2255 , G02F2001/212 , H04B10/5561
Abstract: An optical module includes: an optical modulator that includes a plurality of electrodes and that performs an optical modulation process by using electrical signals input to the electrodes; and a flexible substrate that has flexibility and has a plurality of wiring patterns used for transferring the electrical signals each of which is input to a different one of the electrodes. The optical modulator includes: a plurality of connecting members that connect together the electrodes and the wiring patterns; and at least one protrusion that has a ground voltage, is connected to the flexible substrate while being positioned on a line segment connecting together two of the connecting members positioned adjacent to each other, and has a cross section of which the size measured in the direction perpendicular to the line segment is larger than the size of the cross section of each of the connecting members.
Abstract translation: 光学模块包括：光调制器，包括多个电极，并通过使用输入到电极的电信号来执行光调制过程; 以及柔性基板，其具有柔性并且具有多个用于传送每个被输入到不同电极的电信号的布线图案。 光调制器包括：将电极和布线图形连接在一起的多个连接构件; 并且具有接地电压的至少一个突起被连接到柔性基板，同时被定位在连接在彼此相邻的两个连接构件之间的线段上，并且其横截面的尺寸沿方向 垂直于线段的尺寸大于每个连接构件的横截面的尺寸。
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公开(公告)号：US20150362823A1
公开(公告)日：2015-12-17
申请号：US14703411
申请日：2015-05-04
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki SUGIYAMA
CPC classification number: G02F1/225 , G02F1/035 , G02F2001/212
Abstract: An optical module includes an optical modulator that modulates light by using an electrical signal input from a first surface to a plurality of electrodes; and a flexible substrate that has a plurality of wiring patterns electrically connected to the plurality of electrodes, respectively, on the first surface. The optical modulator has a bulging part that bulges out from the first surface opposed to the flexible substrate toward the flexible substrate and is in contact with the flexible substrate.
Abstract translation: 光学模块包括光调制器，其通过使用从第一表面输入到多个电极的电信号来调制光; 以及柔性基板，其具有分别在所述第一表面上电连接到所述多个电极的多个布线图案。 光调制器具有从与柔性基板相对的第一表面向柔性基板凸出并与柔性基板接触的凸出部分。
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公开(公告)号：US20250155738A1
公开(公告)日：2025-05-15
申请号：US18910343
申请日：2024-10-09
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Masaki SUGIYAMA
Abstract: An optical device includes a first chip and a second chip that has a material having a high electro-optic effect. The first chip includes a first waveguide propagating a beam from a first port, a first branched waveguide propagating the beam from the first waveguide, a turned-back parallel waveguide connecting with the first branched waveguide, and a first parallel waveguide propagating the beam from the turned-back parallel waveguide. The first chip includes a second waveguide propagating a beam from a second port, a second branched waveguide propagating the beam from the second waveguide, and a phase adjustor adjusting a phase of the beam propagating in the first branched waveguide. The second chip includes a second parallel waveguide coupling the first parallel waveguide and the second branched waveguide, and a phase modulator adjusting a phase of the beam propagating in the second parallel waveguide.
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公开(公告)号：US20250102736A1
公开(公告)日：2025-03-27
申请号：US18776536
申请日：2024-07-18
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Masaki SUGIYAMA
IPC: G02B6/293
Abstract: A 90-degree hybrid circuit includes a first and a second waveguide in each of which signal light split by a first coupler propagates. The circuit includes a third and a fourth waveguide in each of which local oscillator light split by a second coupler propagates, and a third coupler that multiplexes the signal light propagated through the first waveguide and the local oscillator light propagated through the third waveguide. The circuit includes a fourth coupler that multiplexes the signal light propagated through the second waveguide and the local oscillator light propagated through the fourth waveguide, and a phase adjustor that adjusts a phase of light propagating through at least one waveguide from among the first to the fourth waveguides. A first total value of optical lengths of the first and the fourth waveguide is shorter than a second total value of optical lengths of the second and the third waveguide.
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公开(公告)号：US20240310577A1
公开(公告)日：2024-09-19
申请号：US18431589
申请日：2024-02-02
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Masaki SUGIYAMA
IPC: G02B6/122
CPC classification number: G02B6/1228
Abstract: An optical device includes a substrate, a first layer provided on the substrate on a side away from the substrate, a second layer provided on the substrate on a side closer to the substrate, and a third layer provided between the first layer and the second layer. The optical device includes a first waveguide arranged in the first layer, a second waveguide arranged in the second layer, a third waveguide arranged in the third layer, and a fourth waveguide arranged between the second layer and the substrate. The third waveguide is arranged at a position in which at least the first waveguide and a part of the second waveguide are overlapped in a surface direction of the substrate, and has a structure in which a width of the third waveguide is set to be narrower than a width of each of the first waveguide and the second waveguide.
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Patent Agency Ranking
公开(公告)号：US20240248330A1
公开(公告)日：2024-07-25
申请号：US18497521
申请日：2023-10-30
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Masaki SUGIYAMA
CPC classification number: G02F1/025 , G02F1/0311 , G02F1/0316 , G02F2201/063
Abstract: An optical device includes a rib optical waveguide formed on a substrate, a P doped region formed in one of slab regions of the rib optical waveguide, an N doped region formed in the other one of the slab regions of the rib optical waveguide, a first electrode connected to the P doped region, a second electrode connected to the N doped region, and an optical absorption structure. The optical absorption structure implements optical absorption of signal light passing through the rib optical waveguide according to an electric current that flows between the first electrode and the second electrode, and makes, in the optical absorption, the signal light passing through an optical input portion of the rib optical waveguide lower in optical attenuation rate than the signal light passing through at least part of the rib optical waveguide, the part excluding the optical input portion.
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公开(公告)号：US20240004141A1
公开(公告)日：2024-01-04
申请号：US18324755
申请日：2023-05-26
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Masaki SUGIYAMA
IPC: G02B6/30
CPC classification number: G02B6/305
Abstract: An optical device includes two first waveguides arranged side by side, and a single second waveguide arranged so as to be side by side with and away from the first waveguides. The first waveguide includes first tapered waveguide and second tapered waveguide. The second waveguide includes a third tapered waveguide and a third waveguide. The first tapered waveguide is constituted such that width is wider as the first tapered waveguide is closer to the second tapered waveguide. The second tapered waveguide is constituted such that width is narrower as the second tapered waveguide is farther away from the first tapered waveguide. The third tapered waveguide is constituted such that width is wider as the third tapered waveguide is closer to the third waveguide. The first waveguide has a structure constituted such that first gap between the two first waveguides is made wider than second gap between the two first waveguides.
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公开(公告)号：US20230305327A1
公开(公告)日：2023-09-28
申请号：US18145141
申请日：2022-12-22
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki SUGIYAMA
CPC classification number: G02F1/065 , G02F1/025 , H04B10/501 , G02F2201/12
Abstract: An optical device includes a slot waveguide, and an electrode that has a coplanar structure including a signal electrode and a ground electrode disposed parallel to the slot waveguide. Furthermore, the optical device includes a plurality of electro-optical polymers each of which is inserted into a slot provided in the slot waveguide in a split state, and a bridge that is disposed in a boundary region located between the split electro-optical polymers and that electrically connects the ground electrode and another ground electrode.
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公开(公告)号：US20220397781A1
公开(公告)日：2022-12-15
申请号：US17715336
申请日：2022-04-07
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Masaki SUGIYAMA
Abstract: An optical device includes an optical waveguide, a buffer layer that is layered on the optical waveguide, and an opening that is formed at least in the buffer layer above a part near a side surface of the optical waveguide. The optical device further includes an electrode that is layered in the opening and that is configured to apply a signal to the optical waveguide and a silicon layer that is layered on the buffer layer excluding the opening.
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公开(公告)号：US20210356836A1
公开(公告)日：2021-11-18
申请号：US17167564
申请日：2021-02-04
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki SUGIYAMA
Abstract: An optical device includes an optical waveguide formed of a crystal thin film having an electro-optic effect, an RF electrode configured to apply a high-frequency voltage to the optical waveguide, and a DC electrode configured to apply a DC voltage to the optical waveguide, wherein the RF electrode has a coplanar electrode configuration, and the DC electrode has a microstrip electrode configuration.
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