公开(公告)号：US20230056833A1

公开(公告)日：2023-02-23

申请号：US17862903

申请日：2022-07-12

Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

Inventor： Masaki SUGIYAMA

IPC: G02F1/035 ,  G02F1/225 ,  G02F1/21

Abstract: 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.

公开(公告)号：US20200371384A1

公开(公告)日：2020-11-26

申请号：US16848108

申请日：2020-04-14

Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

Inventor： Masaki SUGIYAMA

IPC: G02F1/025 ,  G01R19/165 ,  G01M11/00 ,  G01R1/067 ,  G01R31/00

Abstract: 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.

公开(公告)号：US20190285815A1

公开(公告)日：2019-09-19

申请号：US16282655

申请日：2019-02-22

Applicant: Fujitsu Optical Components Limited

Inventor： Masaki SUGIYAMA

IPC: G02B6/42 ,  H04B10/40 ,  H04B10/61 ,  H04B10/516

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.

公开(公告)号：US20180183517A1

公开(公告)日：2018-06-28

申请号：US15822673

申请日：2017-11-27

Applicant: Fujitsu Optical Components Limited

Inventor： Masaki SUGIYAMA

IPC: H04B10/079 ,  G02B6/12 ,  H04B10/572

CPC classification number: H04B10/07957 ,  G02B6/12007 ,  G02B6/12009 ,  H04B10/572

Abstract: 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.

公开(公告)号：US20170012710A1

公开(公告)日：2017-01-12

申请号：US15164342

申请日：2016-05-25

Applicant: Fujitsu Optical Components Limited

Inventor： Masaki SUGIYAMA

IPC: H04B10/40 ,  H01L25/16 ,  H01L23/498

CPC classification number: H01L25/167 ,  G02B6/4279 ,  G02B6/4281 ,  G02F1/00 ,  G02F1/0107 ,  G02F1/0121 ,  G02F1/225 ,  H01L23/49827 ,  H01L23/4985

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20160011487A1

公开(公告)日：2016-01-14

申请号：US14710072

申请日：2015-05-12

Applicant: Fujitsu Optical Components Limited

Inventor： Masaki SUGIYAMA

IPC: G02F1/225

CPC classification number: G02F1/225 ,  G02F1/0121 ,  G02F2001/212 ,  G02F2201/18

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20150261062A1

公开(公告)日：2015-09-17

申请号：US14619883

申请日：2015-02-11

Applicant: Fujitsu Optical Components Limited

Inventor： Masaki SUGIYAMA

IPC: G02F1/225 ,  G02B6/12

CPC classification number: G02B6/12 ,  G02B6/4279 ,  G02B2006/12142 ,  G02F1/2255 ,  G02F2001/212

Abstract: An optical module includes: a substrate; a wiring pattern; and a cover material. The wiring pattern includes, on the substrate, an electrode portion having a predetermined width and a signal line having a width smaller than the predetermined width and connected to the electrode portion. The cover material covers a part of the electrode portion and the signal line.

Abstract translation: 光学模块包括：基板; 布线图案 和覆盖材料。 布线图案在基板上包括具有预定宽度的电极部分和具有小于预定宽度的宽度的信号线并且连接到电极部分。 覆盖材料覆盖电极部分和信号线的一部分。

公开(公告)号：US20150078763A1

公开(公告)日：2015-03-19

申请号：US14445388

申请日：2014-07-29

Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

Inventor： Masaki SUGIYAMA ,  Seimi SASAKI ,  Takehito TANAKA

IPC: G02F1/225 ,  H04B10/532 ,  H04B10/50

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。

公开(公告)号：US20140119686A1

公开(公告)日：2014-05-01

申请号：US13970804

申请日：2013-08-20

Applicant: Fujitsu Optical Components Limited

Inventor： Masaki SUGIYAMA

IPC: G02F1/01

CPC classification number: H04B10/532 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/126 ,  H04J14/06

Abstract: An optical modulator includes a package 2 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: 光调制器包括：容纳其中的第一基板和不同于第一基板的第二基板，以及在封装外部的柔性电路板的封装2。 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。

公开(公告)号：US20250076689A1

公开(公告)日：2025-03-06

申请号：US18777067

申请日：2024-07-18

Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

Inventor： Masaki SUGIYAMA

IPC: G02F1/01 ,  G02B6/287 ,  G02B6/42 ,  G02B6/43 ,  G02F1/21

Abstract: An optical device includes a waveguide in which light is guided and that has electro-optical effect and thermo-optical effect, and a heater electrode that is arranged on one of side surfaces of the waveguide and that heats the waveguide. The optical device includes a parallel electrode that is arranged on the other of the side surfaces of the waveguide, that is electrically connected to the heater electrode, and that has high resistance as compared with the heater electrode.