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

IPC: H04B10/00 ,  H04J14/06 ,  G02F1/01 ,  G02F1/225 ,  G02F1/21

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。

公开(公告)号：US20150261017A1

公开(公告)日：2015-09-17

申请号：US14615603

申请日：2015-02-06

Applicant: Fujitsu Optical Components Limited

Inventor： Masaharu DOI ,  Yoshinobu Kubota ,  Yoshitada Kawashima ,  TERUHIRO KUBO

IPC: G02F1/01 ,  H04B10/50

CPC classification number: H04B10/501 ,  G02B6/34 ,  G02F2001/133607 ,  H04B10/506

Abstract: A substrate is a substrate on which a first optical modulator and a second optical modulator are arranged in parallel along a width direction. A first prism moves, to a side opposite to the second optical modulator along the width direction of the substrate, an optical path of the first output light and the second output light that are obtained by light of the first wavelength being modulated by the first optical modulator. A second prism is arranged at a position away from the first prism along a longitudinal direction of the substrate and moves, to a side opposite to the first modulator along the width direction of the substrate, an optical path of the third output light and the fourth output light that are obtained by the light of the second wavelength being modulated by the second optical modulator.

Abstract translation: 衬底是沿着宽度方向平行布置第一光调制器和第二光调制器的衬底。 第一棱镜沿着基板的宽度方向移动到与第二光调制器相对的一侧，通过第一波长的光被第一光学器件调制的第一输出光和第二输出光的光路 调制器。 第二棱镜沿着基板的纵向布置在远离第一棱镜的位置处，沿着基板的宽度方向移动到与第一调制器相反的一侧，第三输出光和第四棱镜的光路 由第二波长的光获得的输出光由第二光调制器调制。

公开(公告)号：US20150253593A1

公开(公告)日：2015-09-10

申请号：US14629992

申请日：2015-02-24

Applicant: Fujitsu Optical Components Limited

Inventor： Masaki SUGIYAMA

IPC: G02F1/01 ,  G02F1/225

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。

公开(公告)号：US20150253592A1

公开(公告)日：2015-09-10

申请号：US14625255

申请日：2015-02-18

Applicant: Fujitsu Optical Components Limited

Inventor： Masaki SUGIYAMA

IPC: G02F1/01 ,  G02F1/225

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。

公开(公告)号：US20150234252A1

公开(公告)日：2015-08-20

申请号：US14704072

申请日：2015-05-05

Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

Inventor： Masaki SUGIYAMA

IPC: G02F1/225 ,  G02F1/035

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.

Abstract translation: 光调制器包括将输入光分为两个并输出第一输出光和第二输出光的第一耦合器; 第一马赫 - 策德尔干涉仪（MZI），其调制来自第一耦合器的第一输出光的强度并输出第三输出光; 第二MZI，其调制来自第一耦合器的第二输出光的强度并输出第四输出光; 组合来自第一MZI的第三输出光和来自第二MZI的第四输出光的第二耦合器将组合的光分为两个，并输出第五输出光和第六输出光。 将第一耦合器的分支与第二耦合器的分支的相互作用长度设置为使得第一耦合器的分束比的波长依赖性与第二耦合器的波长相关。

公开(公告)号：US20150188639A1

公开(公告)日：2015-07-02

申请号：US14575020

申请日：2014-12-18

Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

Inventor： Tamotsu AKASHI

IPC: H04B10/564

CPC classification number: H04B10/50575 ,  H04B10/40

Abstract: An optical transmitter includes an optical modulator to modulate light output from a light source with a drive signal, a monitor to detect an average value and an alternating-current (AC) component of output light intensity of the optical modulator, and a controller to select one of a first bias control and a second bias control in accordance with an amplitude of the drive signal. The first bias control controls a bias voltage of the drive signal based on the average value, and the second bias control controls the bias voltage of the drive signal based on the AC component.

Abstract translation: 光发射机包括光调制器，用于利用驱动信号调制从光源输出的光;监视器，用于检测光调制器的输出光强度的平均值和交流（AC）分量;以及控制器选择 根据驱动信号的幅度的第一偏置控制和第二偏置控制中的一个。 第一偏置控制器基于平均值控制驱动信号的偏置电压，并且第二偏置控制器基于AC分量来控制驱动信号的偏置电压。

公开(公告)号：US09069224B2

公开(公告)日：2015-06-30

申请号：US14541897

申请日：2014-11-14

Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

Inventor： Hiroshi Nishimoto ,  Hiroshi Kuwahara

IPC: H04J14/02 ,  H04B10/04 ,  H04J14/08 ,  H04B10/02 ,  H04J14/06 ,  G02F1/295 ,  G02F1/225 ,  H04B10/50 ,  G02F1/01 ,  G02F1/21

CPC classification number: G02F1/2257 ,  G02F1/0123 ,  G02F2001/212 ,  H04B10/50572 ,  H04B10/50575

Abstract: An optical modulator includes: a modulator including an optical waveguide provided in a semiconductor substrate having an electro-optical effect and an electrode to apply an electric field depending on a bias voltage and a modulation signal to the optical waveguide; a driver circuit to generate a modulation signal in accordance with an input signal; a superimposer to superimpose a reference signal on the bias voltage, the reference signal having lower frequency than the modulation signal; and a controller to control a bias voltage in a direction orthogonal to a modulation direction of the modulator based on the frequency component of the reference signal extracted from a modulated optical signal generated by the modulator.

Abstract translation: 光调制器包括：调制器，包括设置在具有电光效应的半导体衬底中的光波导和电极，以根据偏置电压和调制信号向光波导施加电场; 驱动电路，用于根据输入信号产生调制信号; 叠加器，用于将参考信号叠加在所述偏置电压上，所述参考信号的频率低于所述调制信号; 以及控制器，用于基于从调制器生成的调制光信号中提取的参考信号的频率分量来控制与调制器的调制方向正交的方向上的偏置电压。

公开(公告)号：US20150117865A1

公开(公告)日：2015-04-30

申请号：US14498077

申请日：2014-09-26

Applicant: Fujitsu Optical Components Limited

Inventor： Hirohiko SONODA ,  Kohei SHIBATA ,  Takuya NAKAO ,  Yasuhiro YAMAUCHI ,  Ryuichi YOSHIDA ,  Hiroyuki FURUKAWA

IPC: H04B10/61 ,  H04B10/40

CPC classification number: H04B10/614 ,  G02B6/42 ,  H04B10/07955 ,  H04B10/40 ,  H04B10/615

Abstract: A housing accommodates an optical waveguide substrate, plural signal light receiving elements, and a signal-light-level monitoring light receiving element. Signal light and locally oscillated light are input into optical waveguides in the optical waveguide substrate from a first end face of the optical waveguide substrate. The plural signal light receiving elements are disposed aligned on a side of a second end face opposite to a side of the first end face of the optical waveguide substrate. The signal-light-level monitoring light receiving element is disposed on a side of a third end face or a fourth end face between the first end face and the second end face of the optical waveguide substrate and at a position closer to the first end face than to the second end face.

Abstract translation: 壳体容纳光波导基板，多个信号光接收元件和信号光级监视光接收元件。 信号光和本地振荡光从光波导基板的第一端面输入到光波导基板中的光波导中。 多个信号光接收元件在与光波导基板的第一端面的相反侧的第二端面的一侧排列。 信号光级监视光接收元件设置在光波导基板的第一端面和第二端面之间的第三端面或第四端面的一侧，并且在靠近第一端面的位置 而不是第二个端面。

公开(公告)号：US09014570B2

公开(公告)日：2015-04-21

申请号：US13417821

申请日：2012-03-12

Applicant: Toshio Ishii

Inventor： Toshio Ishii

IPC: H04B10/04 ,  H04B10/12 ,  H04B10/50

CPC classification number: H04B10/50593

Abstract: An optical transmitter includes: a modulator driver to generate a drive signal from an input signal; a modulator to generate a modulated optical signal according to the drive signal; an amplitude detector to detect an input amplitude representative of an amplitude of the input signal; and a controller to generate a waveform control signal according to the input amplitude detected by the amplitude detector. The modulator driver controls a waveform of the drive signal according to the waveform control signal.

Abstract translation: 光发射机包括：调制器驱动器，用于从输入信号产生驱动信号; 调制器，用于根据驱动信号产生调制光信号; 幅度检测器，用于检测表示所述输入信号的幅度的输入幅度; 以及控制器，用于根据由振幅检测器检测到的输入幅度产生波形控制信号。 调制器驱动器根据波形控制信号控制驱动信号的波形。

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。