公开(公告)号：US08711359B2

公开(公告)日：2014-04-29

申请号：US12923721

申请日：2010-10-05

Applicant: Nobuhiro Fukushima

Inventor： Nobuhiro Fukushima

IPC: G01B9/02 ,  H04B10/00

CPC classification number: G02B6/29352 ,  G02F1/09 ,  G02F1/092 ,  G02F2001/212 ,  G02F2001/215 ,  G02F2203/20 ,  G02F2203/21 ,  G02F2203/50

Abstract: A delay interferometer includes first and second optical paths into which incident signal light is split, a first converter including one or more conversion parts to convert the signal light on the first optical path into circularly polarized light and to convert the circularly polarized light into linearly polarized signal light, a phase adjuster to shift an optical phase of the circularly polarized light through a magneto-optic effect, and a second converter to convert a polarization state of the signal light on the second optical path into substantially the same polarization state as a polarization state of the linearly polarized signal light.

Abstract translation: 延迟干涉仪包括入射信号光分离的第一和第二光路，第一转换器，包括一个或多个转换部分，以将第一光路上的信号光转换为圆偏振光，并将圆偏振光转换成线偏振光 信号光，通过磁光效应移动圆偏振光的光相位的相位调节器，以及将第二光路上的信号光的偏振状态转换为与极化相同的极化状态的第二转换器 线偏振信号光的状态。

公开(公告)号：US20140072313A1

公开(公告)日：2014-03-13

申请号：US13924889

申请日：2013-06-24

Applicant: Fujitsu Optical Components Limited

Inventor： Toru YAMAZAKI

IPC: H04B10/556

CPC classification number: H04B10/5561 ,  H04B10/5053 ,  H04J14/08

Abstract: A first clock modulator branches a light beam, varies a phase difference of the resulting light beams according to a first clock, and causes interference of the light beams. A second clock modulator branches a light beam from the first clock modulator and synchronized with the first clock, varies a phase difference of the resulting light beams according to a second clock, and causes interference of the light beams. A third clock modulator branches a light beam from the first clock modulator and inversely synchronized with the first clock, varies a phase difference of the resulting light beams according to a third clock, and causes interference of the light beams. The second clock and the first clock have identical cycles and differing phases. The third clock and the second clock have phases that differ by a 1/2 cycle. Four data modulators modulate the light beams from the clock modulators.

Abstract translation: 第一时钟调制器分支光束，根据第一时钟改变所得光束的相位差，并且引起光束的干扰。 第二时钟调制器将来自第一时钟调制器的光束分支并与第一时钟同步，根据第二时钟改变所得到的光束的相位差，并且引起光束的干扰。 第三时钟调制器分支来自第一时钟调制器的光束并与第一时钟反向同步，根据第三时钟改变所得到的光束的相位差，并且引起光束的干扰。 第二个时钟和第一个时钟具有相同的周期和不同的相位。 第三个时钟和第二个时钟具有相差1/2周期的相位。 四个数据调制器调制来自时钟调制器的光束。

公开(公告)号：US08600199B2

公开(公告)日：2013-12-03

申请号：US13192601

申请日：2011-07-28

Applicant: Tsuyoshi Morishita

Inventor： Tsuyoshi Morishita

IPC: G02F1/035 ,  G02B6/42 ,  G02B6/26

CPC classification number: G02F1/0121 ,  G02F1/2255 ,  G02F2203/50 ,  H04B10/5053 ,  H04B10/50575 ,  H04B10/50577 ,  H04B10/5561

Abstract: An optical modulator includes a modulator that modulates an input light of light by using an input signal. The optical modulator further includes a compensation circuit that compensates the phase of a signal light in accordance with an input current, the signal light being the input light modulated by the modulator. The optical modulator further includes a detector that detects the difference between the phase of the signal light compensated by the compensation circuit and the phase of an input signal that is input to the modulator. The optical modulator further includes an adjustment circuit that adjusts, in accordance with the phase difference detected by the detector, the input current that is input to the compensation circuit.

Abstract translation: 光调制器包括通过使用输入信号来调制光的输入光的调制器。 光调制器还包括补偿电路，该补偿电路根据输入电流来补偿信号光的相位，信号光是由调制器调制的输入光。 光调制器还包括检测器，其检测由补偿电路补偿的信号光的相位与输入到调制器的输入信号的相位之间的差异。 光调制器还包括调整电路，其根据由检测器检测的相位差调整输入到补偿电路的输入电流。

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.

公开(公告)号：US20130223838A1

公开(公告)日：2013-08-29

申请号：US13688624

申请日：2012-11-29

Applicant: Fujitsu Optical Components Limited

Inventor： Masakazu Horishita ,  Shinichi Sakuramoto

IPC: H04B10/071

CPC classification number: H04B10/071

Abstract: A transmitting apparatus connected via an optical branching apparatus to an optical communication device group includes a control unit that for each periodic transmission period including a first transmission period with a test period in which the optical communication device group is not allowed to transmit optical signals and a second transmission period without the test period, allows the optical communication device group to transmit the optical signals during a period different from the test period; a test light sending unit that sends test light to the optical branching apparatus during the test period; a light receiving unit that receives optical signals transmitted from the optical communication device group, and reflected light of the sent test light; a measuring unit that measures intensity of the reflected light received at different elapsed times after the test light is sent; and an output unit that outputs information based on the measured intensity.

Abstract translation: 经由光分支装置连接到光通信装置组的发送装置包括控制单元，对于每个周期性的传输周期，包括具有不允许光通信设备组发送光信号的测试周期的第一传输周期，以及 没有测试周期的第二传输周期允许光通信设备组在与测试周期不同的时间段内传输光信号; 测试光发送单元，在测试期间将测试光发送到光分支设备; 光接收单元，其接收从光通信设备组发送的光信号和所发送的测试光的反射光; 测量单元，其测量在发射测试光之后在不同经过时间接收的反射光的强度; 以及输出单元，其基于测量的强度输出信息。

公开(公告)号：US20130027762A1

公开(公告)日：2013-01-31

申请号：US13462043

申请日：2012-05-02

Applicant: Masaki Sugiyama

Inventor： Masaki Sugiyama

IPC: G02F1/03 ,  H05K1/11

CPC classification number: H05K1/0215 ,  H05K1/112 ,  H05K3/363 ,  H05K2201/094

Abstract: A printed circuit board (PCB) has a connection ground pattern and a wiring ground pattern. The connection ground pattern is a pattern for soldered connection formed on a first wiring layer. The wiring ground pattern is formed to be spaced from the connection ground pattern on the first wiring layer. The connection ground pattern and the wiring ground pattern are electrically coupled via a second wiring layer. When the wiring ground pattern is covered with an insulating layer, such as a solder resist, even if the position of an end of the insulating layer varies among wiring ground patterns, an influence on an exposed area of the connection ground pattern is eliminated.

Abstract translation: 印刷电路板（PCB）具有连接接地图案和接线图案。 连接接地图是形成在第一布线层上的焊接连接图案。 布线接地图形形成为与第一布线层上的连接接地图案间隔开。 连接接地图案和接线图案经由第二布线层电耦合。 即使绝缘层的端部的位置在布线接地图形之间变化，当布线接地图案被诸如阻焊剂的绝缘层覆盖时，也不会影响连接接地图案的暴露区域。

公开(公告)号：US08244075B2

公开(公告)日：2012-08-14

申请号：US12837765

申请日：2010-07-16

Applicant: Masaki Sugiyama

Inventor： Masaki Sugiyama

IPC: G02F1/035

CPC classification number: G02F1/035 ,  G02F1/0316 ,  G02F2001/212

Abstract: There is provided an optical device including a substrate having an electro-optical effect, a plurality of optical modulators including bias electrodes to which a bias voltage is applied so as to generate an electric field from one of the bias electrodes to another of the bias electrodes, and the bias electrodes of the optical modulators being disposed above the substrate, and a partition conductor to reduce influence of the electric field from the bias electrode of a first optical modulator to an optical waveguide of a second optical modulator, the partition conductor being disposed above the substrate.

Abstract translation: 提供了一种包括具有电光效应的基板的光学装置，包括施加偏压的偏置电极的多个光学调制器，以便从一个偏置电极到另一个偏置电极产生电场 并且所述光学调制器的偏置电极设置在所述衬底上方，以及分隔导体，用于减小从第一光学调制器的偏置电极到第二光学调制器的光波导的电场的影响，所述分隔导体被布置 在基材之上。

公开(公告)号：US20120155880A1

公开(公告)日：2012-06-21

申请号：US13323022

申请日：2011-12-12

Applicant: Hiroshi Nishimoto ,  Hiroshi Kuwahara

Inventor： Hiroshi Nishimoto ,  Hiroshi Kuwahara

IPC: H04B10/04 ,  H04J14/02 ,  H04J14/08

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：US20120114340A1

公开(公告)日：2012-05-10

申请号：US13232511

申请日：2011-09-14

Applicant: Masaki Sugiyama

Inventor： Masaki Sugiyama

IPC: H04B10/12 ,  G02B6/12

CPC classification number: G02B6/4201 ,  G02B6/4279 ,  G02B6/428 ,  H01P3/08 ,  H01P5/08

Abstract: An optical transmitter including: an optical module; an interconnecting circuit board configured to be electrically coupled to the optical module; and a printed circuit board configured to be electrically coupled to the interconnecting circuit board; wherein the interconnecting circuit board includes: a coplanar waveguide; and a microstrip line including a signal wiring line extended from an end of the coplanar waveguide and a ground wiring line, wherein the width of the signal wiring line is narrower than the width of a signal wiring line of the coplanar waveguide, and the spacing between the signal wiring line extended from the end of the coplanar waveguide and the ground wiring line is smaller than the spacing between the signal wiring line of the coplanar waveguide and the ground wiring line.

Abstract translation: 一种光发射机，包括：光模块; 配置为电耦合到所述光学模块的互​​连电路板; 以及印刷电路板，被配置为电耦合到所述互连电路板; 其中所述互连电路板包括：共面波导; 以及包括从共面波导的端部延伸的信号布线和接地布线的微带线，其中信号布线的宽度比共面波导的信号布线的宽度窄， 从共面波导和接地布线的端部延伸的信号布线小于共面波导的信号布线和接地布线之间的间隔。

公开(公告)号：US20120082420A1

公开(公告)日：2012-04-05

申请号：US13325817

申请日：2011-12-14

Applicant: Shinichi AOKI

Inventor： Shinichi AOKI

IPC: G02B6/36

CPC classification number: G02B6/4269 ,  G02B6/4281 ,  H05K1/0204 ,  H05K1/0206 ,  H05K1/189 ,  H05K3/4046 ,  H05K7/205 ,  H05K2201/066 ,  H05K2201/09054 ,  H05K2201/10689

Abstract: An optical module includes: a flexible board having a first surface on which a component is mounted and a second surface opposite to the first surface; a bottom electrode part having a bottom surface on which a heat release electrode is provided, the bottom electrode part mounted on the first surface of the flexible board; and a heat release member configured to absorb heat from the bottom electrode part and release the heat to outside. The heat release member is arranged close to said second surface of the flexible board at a position where the bottom electrode part is mounted.

Abstract translation: 光学模块包括：柔性板，其具有安装有部件的第一表面和与第一表面相对的第二表面; 具有底面的底部电极部分，其上设置有放热电极，所述底部电极部分安装在所述柔性板的第一表面上; 以及散热构件，其构造成从底部电极部吸收热量并将热量释放到外部。 散热构件在安装底部电极部分的位置处靠近柔性板的第二表面设置。