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1. 发明申请

US20230004028A1 OPTICAL DEVICE AND OPTICAL COMMUNICATION APPARATUS 有权
公开(公告)号：US20230004028A1
公开(公告)日：2023-01-05
申请号：US17725944
申请日：2022-04-21
申请人： FUJITSU OPTICAL COMPONENTS LIMITED
发明人： Shuntaro MAKINO , Yoshinobu KUBOTA , Yasuhiro OHMORI , Masaharu DOI , Masaki SUGIYAMA , Shintaro TAKEUCHI , Yoshihiko YOSHIDA , Shinji MARUYAMA , Teruo KURAHASHI
IPC分类号： G02F1/035 , G02F1/21 , G02F1/225
摘要： 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.

2. 发明申请

US20210278597A1 OPTICAL DEVICE THAT INCLUDES OPTICAL MODULATOR, AND OPTICAL TRANSCEIVER 有权
公开(公告)号：US20210278597A1
公开(公告)日：2021-09-09
申请号：US17141288
申请日：2021-01-05
申请人： Fujitsu Optical Components Limited
发明人： Masaki SUGIYAMA
IPC分类号： G02B6/293 , G02F1/225 , G02B6/12 , G02F1/21
摘要： An optical device includes: a substrate; an optical waveguide that forms a Mach-Zehnder interferometer; a signal electrode; and a ground electrode. The optical waveguide is placed between the signal electrode and the ground electrode.
An electric field is generated in a direction along a surface of the substrate when a voltage is applied between the signal electrode and the ground electrode. The optical waveguide includes a first waveguide through which input light propagates, a curved waveguide which is optically coupled to the first waveguide, and a second waveguide which is optically coupled to the curved waveguide. The signal electrode includes first and second electrodes that are respectively placed near the first and second waveguides. An electric signal is supplied to the first electrode, and an inverted electric signal is supplied to the second electrode.

3. 发明申请

US20170357054A1 OPTICAL DEVICE, TUNABLE LIGHT SOURCE, AND OPTICAL TRANSMITTER 审中-公开
公开(公告)号：US20170357054A1
公开(公告)日：2017-12-14
申请号：US15605192
申请日：2017-05-25
申请人： Fujitsu Optical Components Limited
发明人： Masaki SUGIYAMA
IPC分类号： G02B6/28 , G02B6/125 , G02B6/293 , G02B6/12
CPC分类号： G02B6/2861 , G02B6/125 , G02B6/29352 , G02B6/29398 , G02B2006/12061 , G02B2006/12097
摘要： A disclosed optical device includes a first waveguide disposed between a branching portion and a multiplexing portion on a semiconductor substrate, and a second waveguide disposed between the branching portion and the multiplexing portion, the second waveguide being longer than the first waveguide. In the optical device, an optical confinement effect of the first waveguide is greater than an optical confinement effect of the second waveguide, the first waveguide has a curvature with a first curvature radius (Rs), the second waveguide has a curvature with a second curvature radius (Rl), and the first curvature radius is smaller than the second curvature radius.

4. 发明申请

US20160191169A1 OPTICAL MODULATOR AND OPTICAL TRANSMITTER 审中-公开
标题翻译：光学调制器和光学发射器
公开(公告)号：US20160191169A1
公开(公告)日：2016-06-30
申请号：US15063588
申请日：2016-03-08
申请人： FUJITSU OPTICAL COMPONENTS LIMITED
发明人： Masaki SUGIYAMA
IPC分类号： H04B10/532 , H04J14/06 , G02F1/225
CPC分类号： H04B10/532 , G02F1/2255 , G02F2001/212 , G02F2201/126 , H04J14/06
摘要： 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.
摘要翻译：一种光学调制器包括：容纳其中的第一基板和不同于第一基板的第二基板以及封装外部的柔性电路板的封装。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。

5. 发明申请

US20230056833A1 OPTICAL DEVICE AND OPTICAL COMMUNICATION APPARATUS 有权
公开(公告)号：US20230056833A1
公开(公告)日：2023-02-23
申请号：US17862903
申请日：2022-07-12
申请人： FUJITSU OPTICAL COMPONENTS LIMITED
发明人： Masaki SUGIYAMA
IPC分类号： G02F1/035 , G02F1/225 , G02F1/21
摘要： An optical device includes an optical waveguide that is a rib type and that is formed of a thin film lithium niobate (LiNbO3: LN) substrate using a thin film LN crystal, and a buffer layer that is laminated on the optical waveguide. Furthermore, the optical device includes an electrode that is laminated on the buffer layer and that applies a voltage to the optical waveguide, and a gettering site that is disposed parallel to the optical waveguide and that traps an electric charge inside the optical waveguide.

6. 发明申请

US20200371384A1 OPTICAL DEVICE, TEST METHOD, OPTICAL TRANSMISSION AND RECEPTION DEVICE, AND MANUFACTURING METHOD 审中-公开
公开(公告)号：US20200371384A1
公开(公告)日：2020-11-26
申请号：US16848108
申请日：2020-04-14
申请人： FUJITSU OPTICAL COMPONENTS LIMITED
发明人： Masaki SUGIYAMA
IPC分类号： G02F1/025 , G01R19/165 , G01M11/00 , G01R1/067 , G01R31/00
摘要： An optical transmission device includes: a substrate; a waveguide that is provided in the substrate and transmits an optical signal; a signal wiring that is provided in the substrate and transmits an electric signal; and a silicon wiring that is provided in the substrate and is silicon added with an impurity. The signal wiring is placed in an area of the substrate, the area being away from an end of the substrate by a predetermined distance or more. One end of the silicon substrate is connected to the signal wiring, and the other end of the silicon wiring extends to the end of the substrate.

7. 发明申请

US20190285815A1 OPTICAL DEVICE, AND OPTICAL COMMUNICATION MODULE USING THE SAME 审中-公开
公开(公告)号：US20190285815A1
公开(公告)日：2019-09-19
申请号：US16282655
申请日：2019-02-22
申请人： Fujitsu Optical Components Limited
发明人： Masaki SUGIYAMA
IPC分类号： G02B6/42 , H04B10/40 , H04B10/61 , H04B10/516
摘要： 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.

8. 发明申请

US20180183517A1 WAVELENGTH TUNABLE LIGHT SOURCE, AND OPTICAL TRANSCEIVER USING THE SAME 审中-公开
公开(公告)号：US20180183517A1
公开(公告)日：2018-06-28
申请号：US15822673
申请日：2017-11-27
申请人： Fujitsu Optical Components Limited
发明人： Masaki SUGIYAMA
IPC分类号： H04B10/079 , G02B6/12 , H04B10/572
CPC分类号： H04B10/07957 , G02B6/12007 , G02B6/12009 , H04B10/572
摘要： A wavelength tunable light source includes a light source, a wavelength monitor circuit configured to receive light emitted from the light source, and a processor that controls the light source based upon an output value of the wavelength monitor circuit, wherein the wavelength monitor circuit has a wavelength filter with a periodic transmission spectrum, and three photo detectors connected to outputs of the wavelength filter, and wherein the processor is configured to calculate a ratio of photo-detection normalized with two of three quantities of light received at the three photo detectors and control electric current input to the light source such that a calculated ratio of photo-detection approaches a target ratio at a designated wavelength.

9. 发明申请

US20170012710A1 LIGHT TRANSMITTER-RECEIVER 审中-公开
标题翻译：轻型发射器 - 接收器
公开(公告)号：US20170012710A1
公开(公告)日：2017-01-12
申请号：US15164342
申请日：2016-05-25
申请人： Fujitsu Optical Components Limited
发明人： Masaki SUGIYAMA
IPC分类号： H04B10/40 , H01L25/16 , H01L23/498
CPC分类号： H01L25/167 , G02B6/4279 , G02B6/4281 , G02F1/00 , G02F1/0107 , G02F1/0121 , G02F1/225 , H01L23/49827 , H01L23/4985
摘要： A light transmitter-receiver includes a signal processor that carries out a process of transmitting or receiving a light signal; a rigid substrate that is in a plate shape and that has a first through-hole terminal; a package that is fixed to the rigid substrate, that accommodates the signal processor, and that includes a second terminal disposed on a side wall of the package and electrically coupled to the signal processor; and a flexible substrate that extends along the side wall and that includes a third terminal disposed at an tip of the flexible substrate and electrically coupled to the second terminal, the third terminal being coupled to the first through-hole terminal in a state where the third terminal is placed in the first through-hole terminal.
摘要翻译：光发射机 - 接收机包括执行发射或接收光信号的处理的信号处理器; 刚性基板，其为板状且具有第一通孔端子; 固定到刚性基板的封装，其容纳信号处理器，并且包括设置在封装的侧壁上并电耦合到信号处理器的第二端子; 以及柔性基板，其沿着所述侧壁延伸并且包括设置在所述柔性基板的尖端处并电耦合到所述第二端子的第三端子，所述第三端子在所述第三通孔接头的状态下联接到所述第一通孔端子，端子放置在第一通孔端子中。

10. 发明申请

US20160011487A1 OPTICAL MODULE AND TRANSMITTING APPARATUS 有权
标题翻译：光学模块和传输设备
公开(公告)号：US20160011487A1
公开(公告)日：2016-01-14
申请号：US14710072
申请日：2015-05-12
申请人： Fujitsu Optical Components Limited
发明人： Masaki SUGIYAMA
IPC分类号： G02F1/225
CPC分类号： G02F1/225 , G02F1/0121 , G02F2001/212 , G02F2201/18
摘要： An optical module includes: an optical modulator that performs an optical modulation process by using electrical signals input from a plurality of terminals; and a flexible substrate that has flexibility and electrically connects the optical modulator and a predetermined connector to each other via a plurality of wiring patterns formed on first and second surfaces thereof. The flexible substrate includes: a first pad including a first conductor pattern connected, on the first surface, to a wiring pattern, a second conductor pattern formed on the second surface, and a through hole that connects the first conductor pattern and the second conductor pattern to each other; and a second pad including a third conductor pattern connected, on the second surface, to a wiring pattern, a fourth conductor pattern formed on the first surface, and a through hole that connects the third conductor pattern and the fourth conductor pattern to each other.
摘要翻译：光模块包括：光调制器，通过使用从多个终端输入的电信号来执行光调制处理; 以及柔性基板，其具有柔性并且通过形成在其第一表面和第二表面上的多个布线图案将光调制器和预定连接器彼此电连接。柔性基板包括：第一焊盘，包括在第一表面上连接到布线图案的第一导体图案，形成在第二表面上的第二导体图案，以及连接第一导体图案和第二导体图案的通孔对彼此; 以及第二焊盘，包括在第二表面上连接到布线图案的第三导体图案，形成在第一表面上的第四导体图案，以及将第三导体图案和第四导体图案彼此连接的通孔。

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