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公开(公告)号：US10948800B2
公开(公告)日：2021-03-16
申请号：US16150880
申请日：2018-10-03
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
Abstract: An optical waveguide includes: a plurality of linear portions arranged in parallel to each other; a plurality of arcuate portions, in the folded portion of the optical waveguide, concentrically arranged about a predetermined center position as a center on the substrate at intervals narrower than intervals between the plurality of linear portions, each of the arcuate portions having a central angle that increases as each of the arcuate portions is closer to the center position; and a plurality of connecting portions respectively connecting the plurality of linear portions and the plurality of arcuate portions, at least one group of the connecting portions bending in a direction opposite to a direction where each of the arcuate portions bends.
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公开(公告)号：US20210033896A1
公开(公告)日：2021-02-04
申请号：US16907723
申请日：2020-06-22
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
IPC: G02F1/065 , G02F1/025 , H04B10/516
Abstract: An optical transmission device includes a substrate, a waveguide, a signal wire, a ground wire, and a first stub wire. The waveguide is provided on the substrate and transmits an optical signal. The signal wire and the ground wire are disposed on the substrate along the waveguide and include, at end portions, bonding portions electrically connected to an external substrate by wires. The first stub wires are connected to the end portions of the ground wires. The distance between the signal wire and the first stub wire is shorter than the distance between the signal wire and the ground wire.
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公开(公告)号：US10459175B2
公开(公告)日：2019-10-29
申请号：US16282655
申请日：2019-02-22
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
IPC: G02B6/42 , H04B10/61 , H04B10/516 , H04B10/40
Abstract: An optical device has a photonic IC having a modulator block and a photodetector block for transmitting and receiving optical signals via multiple channels, and a wiring board to transmit and receive electrical signals to and from the photonic IC, multiple electrical wirings formed on the wiring board being associated with the multiple channels, wherein the photonic IC has a first optical waveguide set extending from an output end of the modulator block to an output port of the photonic IC and a second optical waveguide set extending from an input port of the photonic IC to an input end of the photodetector block, the optical waveguides are arranged in the shortest paths for the respective channels in the first and the second optical waveguide sets, and the lengths of the electrical wirings are set so as to compensate for a difference in optical waveguide length among the channels.
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公开(公告)号：US10349492B2
公开(公告)日：2019-07-09
申请号：US15902227
申请日：2018-02-22
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
IPC: H05B37/02 , G02B6/00 , H01S5/00 , H01S5/0687 , H01S5/14 , H01S5/026 , H01S5/06 , H01S5/10 , G01J3/02
Abstract: A wavelength tunable light source has a light source, a wavelength monitor circuit that receives a portion of light emitted from the light source, and a processor that controls a wavelength of the light emitted from the light source based upon an output value of the wavelength monitor circuit, wherein the wavelength monitor circuit has a wavelength filter that outputs four light components with optical phases shifted by 90 degrees from one another and multiple photo detectors that detects the four light components output from the wavelength filter, and wherein the processor selects at least one of the four light components, calculates a ratio of a monitor value of the selected light component to a total sum of monitor values of the four light components, and adjusts the wavelength of the light source so as to bring the ratio to be closer to a target ratio at a designated wavelength.
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公开(公告)号：USRE46932E1
公开(公告)日：2018-07-03
申请号：US15134763
申请日：2016-04-21
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
IPC: G02F1/01 , H01P3/08 , H03H7/38 , G02B6/12 , H01P1/00 , G02F1/07 , G02F1/03 , H01P5/00 , G02F1/035
CPC classification number: G02F1/0327 , G02F1/035
Abstract: Disclosed is an optical modulator module including an optical modulator configured to have a signal electrode and a ground electrode; a conductive package configured to accommodate the optical modulator and have electrical continuity with the ground electrode of the optical modulator; a substrate configured to have a ground electrode on a first surface thereof electrically connected to the package by solder or a conductive adhesive and have a signal electrode on another surface thereof; and a lead pin configured to electrically connect the signal electrode of the optical modulator to the signal electrode of the substrate.
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Patent Agency Ranking
公开(公告)号：US09709871B2
公开(公告)日：2017-07-18
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.
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公开(公告)号：US09651804B2
公开(公告)日：2017-05-16
申请号：US14943736
申请日：2015-11-17
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama , Akira Ishii , Yoshinobu Kubota
CPC classification number: G02F1/0316 , G02B6/4201 , G02F1/035 , G02F1/225
Abstract: An optical module includes a package, a substrate, a lead pin, and a ground pattern. The substrate is accommodated in the package, includes a signal line pattern that transmits an electric signal, extends toward a side wall of the package beyond an end of the signal line pattern, and has a through hole between the end of the signal line pattern and the side wall of the package. The lead pin is inserted into the through hole in the substrate and inputs the electric signal to the end of the signal line pattern. The ground pattern is provided in at least a part of regions surrounding the through hole on the substrate.
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公开(公告)号：US20170108757A1
公开(公告)日：2017-04-20
申请号：US15261112
申请日：2016-09-09
Applicant: Fujitsu Optical Components Limited
Inventor： Akira ISHII , Shinji Maruyama , Masaki Sugiyama
IPC: G02F1/225
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：US09588359B2
公开(公告)日：2017-03-07
申请号：US14629992
申请日：2015-02-24
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
CPC classification number: G02F1/0121 , G02B6/125 , G02B6/132 , G02B6/2808 , G02B6/42 , G02B6/4246 , G02B2006/1204 , G02B2006/12142 , G02B2006/12159 , G02F1/0327 , G02F1/0356 , G02F1/2252 , G02F1/2255 , G02F2001/212
Abstract: An optical module includes: a substrate; a first terminal; a plurality of second terminals; a plurality of third terminals; and a plurality of wirings. The plurality of second terminals are on the substrate. The plurality of third terminals are disposed closer to an electrode than the plurality of second terminals on the substrate. The plurality of wirings extend from the plurality of second terminals through a side opposite to the first terminal and reach the electrode.
Abstract translation: 光学模块包括：基板; 第一个终端; 多个第二端子; 多个第三端子; 和多个布线。 多个第二端子在基板上。 多个第三端子设置成比基板上的多个第二端子更靠近电极。 多个布线从多个第二端子延伸通过与第一端子相对的一侧并到达电极。
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公开(公告)号：US20160356955A1
公开(公告)日：2016-12-08
申请号：US15131389
申请日：2016-04-18
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
CPC classification number: G02B6/12002 , G02B6/12004 , G02B6/4281 , G02B2006/12142 , G02F1/0121 , G02F1/225 , G02F1/2255
Abstract: A flexible substrate includes a first pad that extends from an end of the flexible substrate to a center of the flexible substrate, and at least a part of which is fixed to the first part; a second pad that extends from the end of the flexible substrate to the center at a position adjacent to the first pad, and at least a part of which is fixed to the first part; a signal line that connects a tip of the first pad and the second part and that is narrower in width than the first pad; and a coverlay that covers an area where the signal line is arranged and that includes a protrusion protruding, at a position at which the first pad is arranged, toward the end of the flexible substrate relative to the area where the signal line is arranged.
Abstract translation: 柔性基板包括从柔性基板的端部延伸到柔性基板的中心的第一焊盘，并且其至少一部分固定到第一部分; 第二垫，其从所述柔性基板的端部延伸到与所述第一焊盘相邻的位置处的中心，并且其至少一部分固定到所述第一部分; 连接第一焊盘的尖端和第二部分并且宽度小于第一焊盘的信号线; 以及覆盖所述信号线布置的区域的覆盖物，并且包括在布置所述第一焊盘的位置处相对于所述信号线布置的区域朝向所述柔性基板的端部突出的突起。
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