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公开(公告)号：US09436018B2
公开(公告)日：2016-09-06
申请号：US14625255
申请日：2015-02-18
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
CPC classification number: G02F1/0121 , G02F1/0327 , G02F1/0344 , G02F1/035 , G02F1/21 , G02F2001/212
Abstract: An optical module includes a circuit substrate and a terminal. The circuit substrate includes a first pattern, a second pattern, a first cover material, and a second cover material. The first pattern electrically is connected to the terminal and formed in a predetermined shape on a first surface of the circuit substrate. The second pattern is formed in a predetermined shape at a position corresponding to the first pattern on a surface opposite to the first surface. The first cover material covers at least a portion of the first pattern to be bent along with bending of the circuit substrate. The second cover material covers at least an end of the second pattern.
Abstract translation: 光学模块包括电路基板和端子。 电路基板包括第一图案，第二图案，第一覆盖材料和第二覆盖材料。 第一图案电连接到端子并且在电路基板的第一表面上以预定形状形成。 第二图案在与第一表面相对的表面上对应于第一图案的位置处以预定形状形成。 第一覆盖材料与电路基板的弯曲一起覆盖要弯曲的第一图案的至少一部分。 第二覆盖材料覆盖第二图案的至少一端。
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公开(公告)号：US09285650B2
公开(公告)日：2016-03-15
申请号：US13973398
申请日：2013-08-22
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama , Norihisa Naganuma , Eiichi Kodera , Yoshinobu Kubota
CPC classification number: G02F1/2255 , G02F2201/126
Abstract: An optical modulating apparatus includes driver that is mounted on a printed circuit board such that a signal electrode pad and a ground electrode pad of the driver are exposed in an opening of the printed circuit board. An optical modulating device is mounted on the printed circuit board, opposing the driver across the opening. A flexible circuit board is disposed in the opening. An end of a signal terminal of the flexible circuit board is electrically connected to a signal electrode of the optical modulating device. An end of a ground terminal of the flexible circuit board is electrically connected to a ground electrode of the optical modulating device. The other end of the signal terminal is soldered to the signal electrode pad of the driver, and the other end of the ground terminal is soldered to the ground electrode pad of the driver.
Abstract translation: 光调制装置包括安装在印刷电路板上的驱动器，使得驱动器的信号电极焊盘和接地电极焊盘暴露在印刷电路板的开口中。 光学调制装置安装在印刷电路板上，穿过开口与驱动器相对。 柔性电路板设置在开口中。 柔性电路板的信号端子的端部电连接到光调制装置的信号电极。 柔性电路板的接地端子的端部电连接到光调制装置的接地电极。 信号端子的另一端被焊接到驱动器的信号电极焊盘，接地端子的另一端被焊接到驱动器的接地电极焊盘。
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公开(公告)号：US09231728B2
公开(公告)日：2016-01-05
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以及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：US20140153934A1
公开(公告)日：2014-06-05
申请号：US14049584
申请日：2013-10-09
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
IPC: H04B10/516 , G02F1/035
CPC classification number: G02B6/29355 , G02F1/035 , G02F2001/212 , G02F2201/58 , H04B10/5053
Abstract: An optical modulator includes a Mach-Zehnder optical waveguide that includes a pair of parallel waveguides, and a two-input-one-output optical coupler that couples light output from the parallel waveguides; a branching waveguide that branches a portion of light output from the optical coupler; and a light receiving unit that receives the light output from the branching waveguide. Orientation of an output end of the branching waveguide is angled toward the light receiving unit, to be oblique with respect to the parallel waveguides, and orientation of an output end of the optical coupler is angled toward a side opposite to that of the output end of the branching waveguide, to be oblique with respect to the parallel waveguides.
Abstract translation: 光调制器包括马赫 - 曾德尔光波导，其包括一对平行波导和耦合从平行波导输出的光的双输入 - 一输出光耦合器; 分支波导，其分支从所述光耦合器输出的光的一部分; 以及光接收单元，其接收从分支波导输出的光。 分支波导的输出端的方向朝向光接收单元倾斜，相对于平行波导倾斜，并且光耦合器的输出端的取向朝向与输出端的输出端相反的一侧倾斜 分支波导相对于平行波导倾斜。
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公开(公告)号：US20130243363A1
公开(公告)日：2013-09-19
申请号：US13761526
申请日：2013-02-07
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Masaki Sugiyama
IPC: G02F1/01
CPC classification number: G02F1/225 , G02F1/011 , G02F1/035 , G02F1/3136 , G02F2001/212
Abstract: An optical modulator includes a first coupler that branches an input light into two and outputs a first output light and a second output light; a first Mach-Zehnder interferometer (MZI) that modulates the intensity of the first output light from the first coupler and outputs a third output light; a second MZI that modulates the intensity of the second output light from the first coupler and outputs a fourth output light; a second coupler that combines the third output light from the first MZI and the fourth output light from the second MZI, branches a combined light into two, and outputs a fifth output light and a sixth output light. The interaction length of a branch of the first coupler and that of the second coupler are set such that the wavelength dependence of the splitting ratio of the first coupler is inversely related to that of the second coupler.
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Patent Agency Ranking
公开(公告)号：US12066737B2
公开(公告)日：2024-08-20
申请号：US17591395
申请日：2022-02-02
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
CPC classification number: G02F1/2255 , G02F1/0147 , G02F1/212 , H04B10/40
Abstract: An optical device includes a substrate W, a RF modulating unit, and a phase adjustment unit 220. The RF modulating unit is provided on the substrate W and modulates light in accordance with a RF signal. The phase adjustment unit 220 is provided on the substrate W and adjusts the phase of an optical signal modulated by the RF modulating unit. The phase adjustment unit 220 includes a heater 2200 and a to-be-heated optical waveguide 2201. The to-be-heated optical waveguide 2201 is provided between a thin film LN substrate 32 and a buffer layer 33 of the substrate W, and is formed of a material having a thermo-optical effect. The heater 2200 is provided at a position opposite the to-be-heated optical waveguide 2201, with the buffer layer 33 therebetween on the substrate W, and heats the to-be-heated optical waveguide 2201.
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公开(公告)号：US12044909B2
公开(公告)日：2024-07-23
申请号：US17391185
申请日：2021-08-02
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
Abstract: An optical device includes an optical modulator formed on a substrate. The optical device includes: a signal electrode for the optical modulator that is formed on the substrate; a ground electrode for the optical modulator that is formed on the substrate; an optical waveguide that is provided in a region between the signal electrode and the ground electrode; a first buffer region that is formed between the optical waveguide and the substrate; and second buffer regions that are formed between the optical waveguide and the signal electrode and between the optical waveguide and the ground electrode. A permittivity of the second buffer regions is higher than a permittivity of the first buffer region.
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公开(公告)号：US11719598B2
公开(公告)日：2023-08-08
申请号：US17128942
申请日：2020-12-21
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
CPC classification number: G01M11/33 , G02B6/125 , G02B6/2773 , G02B6/34 , G02B2006/12061
Abstract: An optical device includes an optical circuit and a test circuit optically connected to the optical circuit. The test circuit includes a first grating coupler configured to receive test light, a second grating coupler configured to output, as reference light, the test light passed through the first grating coupler, and a first branch coupler connected to an output of the first grating coupler. The first branch coupler includes first output connected to an input of the optical circuit and configured to branch and output the test light from the first grating coupler to the optical circuit. Further, the first branch coupler includes a second output connected to an input of the second grating coupler and configured to branch and output the test light from the first grating coupler to the second grating coupler.
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公开(公告)号：US20230125256A1
公开(公告)日：2023-04-27
申请号：US17880322
申请日：2022-08-03
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
IPC: G02F1/225 , G02F1/21 , G02F1/01 , H04B10/548
Abstract: An optical modulator includes an optical waveguide through which signal light passes, a split unit that splits the signal light that passes through the optical waveguide, and a pair of phase shifters each of which shifts a phase of signal light that is split by the split unit. Each of the phase shifters includes an in-shifter waveguide through which the signal light passes, and a heater electrode that heats the in-shifter waveguide in accordance with a driving voltage. The in-shifter waveguide includes an inbound waveguide for inputting the signal light coming from the split unit, an outbound waveguide for outputting the signal light, a folded waveguide that connects the inbound waveguide and the outbound waveguide. The heater electrode is arranged in the vicinity of the inbound waveguide and the outbound waveguide.
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公开(公告)号：US11156858B2
公开(公告)日：2021-10-26
申请号：US16917121
申请日：2020-06-30
Applicant: Fujitsu Optical Components Limited
Inventor： Masaki Sugiyama
Abstract: An optical device includes an optical modulator on an optical IC chip. The optical modulator includes an optical waveguide, first and second wiring patterns that are formed along the optical waveguide and a polymer pattern. A portion of the polymer pattern is formed on the optical waveguide and located in a region between the first and second wiring patterns. Each of the first and second wiring patterns includes a modulation portion that is formed parallel to the optical waveguide, a pad portion, and a transition portion that connects the modulation portion and the pad portion. A shape of a region between the transition portion of the first wiring pattern and the transition portion of the second wiring pattern is a curve. The polymer pattern has a curved portion in the region between the transition portion of the first wiring pattern and the transition portion of the second wiring pattern.
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