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公开(公告)号：US10122464B2
公开(公告)日：2018-11-06
申请号：US15252447
申请日：2016-08-31
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
IPC: H04B10/00 , H04B10/50 , H04B10/516 , H05K1/02
Abstract: An optical module includes a substrate, a package, and a flexible substrate. The substrate is provided with an electrode. The package includes a housing fixed to the substrate, a receiving unit that optically demodulates a received optical signal to convert the optical signal into a reception electrical signal, an output terminal that is provided on a surface of the housing and outputs the reception electrical signal, an input terminal that is provided at a height from the substrate different from a height of the output terminal and receives a transmission electrical signal, and a transmitting unit that optically modulates the transmission electrical signal received from the input terminal and transmits an optical signal resulting from optical modulation. A flexible substrate has flexibility and includes a signal electrode that connects one of the output terminal and the input terminal to the electrode arranged on the substrate.
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公开(公告)号：US10095080B2
公开(公告)日：2018-10-09
申请号：US15650222
申请日：2017-07-14
Applicant: Fujitsu Optical Components Limited
Inventor： Yasuhiro Ohmori , Yoshinobu Kubota , Masaharu Doi , Masaki Sugiyama
Abstract: An optical modulator includes an optical modulator chip configured to optically modulate an optical signal using an electrical signal input thereto; and a relay substrate configured to relay and couple the electrical signal to the optical modulator chip. The optical modulator chip includes a signal electrode and a ground electrode for the electrical signal, formed along a waveguide for the optical signal. One end of the optical modulator chip is arranged to face the relay substrate. An electrode connection portion coupling the electrical signal to the relay substrate by wire is provided at the one end. A distance between a tip of one end of the signal electrode in the electrode connection portion and the end of the optical modulator chip is less than a distance between a tip of an end of the ground electrode in the electrode connection portion and the end of the optical modulator chip.
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公开(公告)号：US10001693B2
公开(公告)日：2018-06-19
申请号：US15243126
申请日：2016-08-22
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama , Akira Ishii , Norihisa Naganuma , Eiichi Kodera
IPC: G02F1/035 , G02F1/225 , H01S5/00 , H04B10/516 , G02F1/21
CPC classification number: G02F1/225 , G02F1/2255 , G02F2001/212 , H01S5/0085 , H04B10/516
Abstract: A light communication device further includes a rigid substrate, a package, and a flexible substrate. The rigid substrate includes a first terminal arranged on a surface thereof and a second terminal having a first hole opened at the surface. The package includes a third terminal and a fourth terminal being provided on a side wall thereof and being electrically coupled to a signal electrode and a ground electrode of the signal processor, respectively. The flexible substrate includes a fifth terminal and a sixth terminal being electrically coupled to the third terminal and the fourth terminal, respectively. The fifth terminal is electrically coupled to the first terminal on the surface, and the sixth terminal, with being placed into the first hole, is electrically coupled to the second terminal.
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公开(公告)号：US09810965B2
公开(公告)日：2017-11-07
申请号：US15261112
申请日：2016-09-09
Applicant: Fujitsu Optical Components Limited
Inventor： Akira Ishii , Shinji Maruyama , Masaki Sugiyama
CPC classification number: G02F1/2255 , G02F1/0327 , G02F1/0344 , G02F1/225 , G02F2001/212 , G02F2201/12
Abstract: An optical module includes an optical modulator that includes a cutout portion and a first terminal projecting to the inside of the cutout portion, and is configured to perform optical modulation by using an electrical signal input to the first terminal; a driver, at least a part of the driver being housed inside the cutout portion, that is configured to generate an electrical signal; an electrode pattern that extends from the driver inside the cutout portion, and is configured to transmit the electrical signal generated by the driver; and a flexible board having flexibility, one end of the flexible board being electrically connected with the first terminal inside the cutout portion, another end of the flexible board extending in the direction away from the driver, the flexible board being connected with the electrode pattern and configured to input the electrical signal transmitted by the electrode pattern to the first terminal.
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公开(公告)号：US09571203B2
公开(公告)日：2017-02-14
申请号：US15063588
申请日：2016-03-08
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Masaki Sugiyama
IPC: G02F1/225 , H04B10/532 , H04J14/06 , G02F1/21
CPC classification number: H04B10/532 , G02F1/2255 , G02F2001/212 , G02F2201/126 , H04J14/06
Abstract: An optical modulator includes a package that accommodates therein a first substrate and a second substrate different from the first substrate, and outside the package, a flexible circuit board. The first substrate has plural optical modulating units disposed thereon in parallel and each including a Mach-Zehnder optical waveguide. Plural first signal line paths corresponding to the optical modulating units are disposed on the second substrate. Plural second signal line paths corresponding to the optical modulating units are disposed on the flexible circuit board. Electrical lengths of the second signal line paths are different from one another. Electrical lengths of signal paths that span from input ends of the second signal line paths corresponding to the optical modulating units to base points on signal electrodes, via the first signal line paths, are equal to one another.
Abstract translation: 一种光学调制器包括：容纳其中的第一基板和与第一基板不同的第二基板的封装，以及封装外部的柔性电路板。 第一基板平行配置有多个光调制单元，每一个包括马赫 - 策德尔光波导。 对应于光调制单元的多个第一信号线路径设置在第二基板上。 对应于光调制单元的多个第二信号线路径设置在柔性电路板上。 第二信号线路径的电长度彼此不同。 经由第一信号线路径跨越从与光调制单元对应的第二信号线路径到信号电极上的基点的信号路径的电长度彼此相等。
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Patent Agency Ranking
公开(公告)号：US09557624B2
公开(公告)日：2017-01-31
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：US09229292B2
公开(公告)日：2016-01-05
申请号：US14445388
申请日：2014-07-29
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Masaki Sugiyama , Seimi Sasaki , Takehito Tanaka
IPC: H04B10/00 , G02F1/225 , H04B10/50 , H04B10/532 , G02F1/21
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。
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公开(公告)号：US12044910B2
公开(公告)日：2024-07-23
申请号：US17725944
申请日：2022-04-21
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Shuntaro Makino , Yoshinobu Kubota , Yasuhiro Ohmori , Masaharu Doi , Masaki Sugiyama , Shintaro Takeuchi , Yoshihiko Yoshida , Shinji Maruyama , Teruo Kurahashi
CPC classification number: G02F1/0353 , G02F1/212 , G02F1/225 , G02F2202/20 , H04J14/02
Abstract: An optical device includes a thin film Lithium Niobate (LN) layer, a first optical waveguide, and a second optical waveguide. The thin film LN layer is an X-cut or a Y-cut LN layer. The first optical waveguide is an optical waveguide that is formed on the thin film LN layer along a direction that is substantially perpendicular to a Z direction of a crystal axis of the thin film LN layer. The second optical waveguide is an optical waveguide that is routed and connected to the first optical waveguide. At least a part of a core of the first optical waveguide is made thicker than a core of the second optical waveguide.
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公开(公告)号：US11658738B2
公开(公告)日：2023-05-23
申请号：US16415343
申请日：2019-05-17
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
IPC: H04B10/071 , G02B6/12 , H04B10/40 , G01M11/00
CPC classification number: H04B10/071 , G01M11/00 , G01M11/30 , G01M11/33 , G02B6/12004 , G02B6/12007 , H04B10/40 , G02B2006/12107 , G02B2006/12166
Abstract: An optical device with an optical transmitter circuit and an optical receiver circuit integrated on a substrate has at least one of a first oblique waveguide extending obliquely with respect to an edge of the substrate at or near an incident port for introducing a light emitted from a light source to the optical device, a second oblique waveguide extending obliquely with respect to the edge of the substrate at or near a signal receiving port optically connected to the optical receiver circuit, and a third oblique waveguide extending obliquely with respect to the edge of the substrate at or near a signal transmission port optically connected to the optical transmitter circuit.
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公开(公告)号：US11604116B2
公开(公告)日：2023-03-14
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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