公开(公告)号：US20150253582A1

公开(公告)日：2015-09-10

申请号：US14617238

申请日：2015-02-09

Applicant: Fujitsu Optical Components Limited

Inventor： Seimi SASAKI ,  Kohei SHIBATA ,  Teruhiro KUBO ,  Shinji MARUYAMA ,  Shintaro TAKEUCHI ,  Hiroshi KATO ,  Takehito TANAKA

IPC: G02B27/28 ,  G02F1/025

CPC classification number: G02B27/283 ,  G02B7/1805 ,  G02B27/286 ,  G02F1/025

Abstract: A polarization combiner includes: a base member that includes a body portion, an arm portion extending from the body portion, and a notch portion surrounded with the body portion and the arm portion; a polarization rotating element that is fixed to the arm portion of the base member and that rotates a polarization direction of a first polarized wave; and a polarization combining element that is fixed to the base member so as to face the notch portion of the base member and the polarization rotating element, the polarization combining element combining two polarized waves entering from a surface facing the notch portion and the polarization rotating element, the two polarized waves including the first polarized wave whose polarization direction is rotated by the polarization rotating element and a second polarized wave passing the notch portion.

Abstract translation: 偏振组合器包括：基部构件，其包括主体部分，从主体部分延伸的臂部分和由主体部分和臂部分围绕的切口部分; 偏振旋转元件，其固定到所述基座的臂部，并且旋转第一偏振波的偏振方向; 以及偏振组合元件，其固定到所述基底构件以面对所述基底构件和所述偏振旋转元件的所述切口部分，所述偏振组合元件组合从面向所述切口部分的表面进入的两个偏振波和所述偏振旋转元件 包括偏振方向由偏振旋转元件旋转的第一偏振波和通过切口部的第二偏振波的两个偏振波。

公开(公告)号：US09110264B2

公开(公告)日：2015-08-18

申请号：US14078835

申请日：2013-11-13

Applicant: Fujitsu Optical Components Limited

Inventor： Shinichi Aoki

IPC: G02B6/42

CPC classification number: G02B6/4269 ,  G02B6/428

Abstract: An optical module includes a wiring board on which a first opening and a second opening are provided having, between the first and second openings, a traversing portion on which a signal wire is arranged, an optical component that is mounted on a first plane side of the first opening and the second opening of the wiring board and that generates heat, a heat sink arranged on a second plane side, which is on a reverse of the first plane side, of the first opening and the second opening of the wiring board, and an anisotropic heat dissipation sheet that is provided between the traversing portion and the heat sink, and the optical component, and that has a thermal conductivity higher in second directions, which cross the traversing portion in a plane orthogonal to first directions, than in the first directions, which are thickness directions of the wiring board.

Abstract translation: 光学模块包括布线板，其上设有第一开口和第二开口，第一开口和第二开口在第一和第二开口之间具有布置有信号线的横向部分，安装在第一平面侧的光学部件 布线板的第一开口和第二开口，产生热量;布置在第一平面侧的第二平面侧上的布线板的第一开口和第二开口的散热器， 以及设置在所述横动部和所述散热器之间的各向异性散热片和所述光学部件，并且在与第一方向正交的平面中与所述横向部交叉的第二方向的导热率高于所述横向部 第一方向，即布线板的厚度方向。

公开(公告)号：US20150117867A1

公开(公告)日：2015-04-30

申请号：US14588684

申请日：2015-01-02

Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

Inventor： Masaki SUGIYAMA

IPC: G02F1/225 ,  H04B10/50

CPC classification number: G02F1/225 ,  G02F1/0316 ,  G02F2201/05 ,  H04B10/501 ,  H04B10/505

Abstract: An optical modulator includes: a substrate that having an optical waveguide that includes a split section that splits light into two light waves, a pair of arms through which the light waves propagate, and a combining section that combines the light waves from the pair of arms with each other; and an electrode that overlaps part of the optical waveguide and generates an electric field by a voltage applied to the electrode. The optical waveguide has a narrow portion that is narrower than another portion of the optical waveguide and is arranged so that the electrode does not overlap with the narrow portion.

Abstract translation: 光学调制器包括：具有光波导的基板，该光波导包括将光分成两个光波的分割部分，光波传播的一对臂，以及组合来自一对臂的光波的组合部分 彼此; 以及与光波导的一部分重叠并通过施加到电极的电压而产生电场的电极。 光波导具有比光波导的另一部分窄的狭窄部分，并且布置成使得电极不与窄部重叠。

公开(公告)号：US20150063809A1

公开(公告)日：2015-03-05

申请号：US14324552

申请日：2014-07-07

Applicant: Fujitsu Optical Components Limited

Inventor： Masaki SUGIYAMA ,  Seimi SASAKI ,  Takehito TANAKA

IPC: G02F1/225 ,  H04J14/06

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和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：US20150016771A1

公开(公告)日：2015-01-15

申请号：US14329026

申请日：2014-07-11

Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

Inventor： Shinji MARUYAMA ,  Yoshihiko YOSHIDA ,  Tomoyuki ITO ,  Yoshihiro TAKAHASHI ,  Yoshinobu KUBOTA

IPC: G02B6/12

CPC classification number: G02B6/42 ,  G02B6/4214 ,  G02B2006/12166 ,  G02F2201/58 ,  H04B10/50 ,  H04B10/60 ,  Y10T29/49128

Abstract: An optical device includes a substrate having an electrooptical effect, and including an optical waveguide that guides light and a reflection groove having a bottom face that reflects light output from the optical waveguide; and a light-receiving element positioned above the reflection groove and fixed to the substrate. The light output from the optical waveguide into the reflection groove is reflected by the bottom face of the reflection groove while traveling through a space inside the reflection groove and is incident to the light-receiving element.

Abstract translation: 光学器件包括具有电光效应的衬底，并且包括引导光的光波导和具有反射从光波导输出的光的底面的反射槽; 以及位于反射槽上方并固定于基板的光接收元件。 从光波导输出到反射槽的光在反射槽内反射并反射到反射槽的底面并入射到光接收元件。

公开(公告)号：US20140355924A1

公开(公告)日：2014-12-04

申请号：US14250760

申请日：2014-04-11

Applicant: Fujitsu Optical Components Limited

Inventor： Masaki SUGIYAMA

IPC: G02F1/225

CPC classification number: G02F1/225 ,  G02F2001/212

Abstract: An optical modulator includes: a substrate that has electrooptical effect and has a Mach-Zehnder modulator that has a 2×2 coupler acting as a splitter, two intermediate waveguides coupled to outputting waveguides of the splitter and another 2×2 coupler acting as a combiner coupled to the two intermediate waveguides; and a suppresser that suppresses a power of an output light from an uncoupled waveguide and an input light into the uncoupled waveguide of at least one of the 2×2 couplers in an extending direction of the Mach-Zehnder modulator.

Abstract translation: 光调制器包括：具有电光效应的基片，具有马赫 - 曾德调制器，该调制器具有2×2耦合器作为分路器，耦合到输出分路器的波导的两个中间波导管和作为组合器的另一个2×2耦合器 耦合到两个中间波导; 以及抑制器，其抑制来自马赫 - 曾德尔调制器的延伸方向的来自未耦合波导和输入光的输出光的功率到至少一个2×2耦合器的非耦合波导中。

公开(公告)号：US20140348500A1

公开(公告)日：2014-11-27

申请号：US14258287

申请日：2014-04-22

Applicant: Fujitsu Optical Components Limited

Inventor： Toshio ISHII

IPC: H04B10/079 ,  H04B10/40 ,  H04B10/60

CPC classification number: H04B10/695

Abstract: An optical receiver includes a first discriminator in which an optimal point of a slice level is set and that compares a received signal to the slice level and discriminately outputs the received signal; a second discriminator that is connected in parallel to the first discriminator, compares the received signal to a slice level, and discriminately outputs the received signal; and a computing device that variably controls the slice level of the first and the second discriminators, respectively. The computing device executes a first process of setting the slice level of the first discriminator to be a predetermined slice level, calculating a pseudo error rate obtained when the slice level of the second discriminator is caused to variably scan, and setting the slice level of the first discriminator within a range in which the error rate does not vary.

Abstract translation: 光接收机包括：第一鉴频器，其中设置限幅电平的最佳点，并将接收信号与限幅电平进行比较，并区分输出接收信号; 与第一鉴别器并联连接的第二鉴频器将接收信号与限幅电平进行比较，并区分输出接收信号; 以及分别可变地控制第一和第二鉴别器的限幅电平的计算装置。 计算装置执行将第一鉴别器的限幅电平设置为预定限幅电平的第一处理，计算当第二鉴别器的限幅电平被引起可变扫描时获得的伪错误率，并且设置 在错误率不变的范围内的第一鉴别器。

公开(公告)号：US20140341240A1

公开(公告)日：2014-11-20

申请号：US14250780

申请日：2014-04-11

Applicant: Fujitsu Optical Components Limited

Inventor： Kenta KANNARI

IPC: H01S5/024

CPC classification number: H01S5/024 ,  H01S5/0612 ,  H01S5/0617 ,  H01S5/06804

Abstract: A method of controlling a temperature of a semiconductor laser includes: controlling a supply current so that a temperature of a temperature control element is changed to a target temperature, the temperature control element controlling a temperature of the semiconductor laser by a temperature changing according to the supply current supplied to the temperature control element; and performing a control for maintaining a calculated value calculated by a digital filter at a threshold when it is detected that the calculated value reaches the threshold, the calculated value being the supply current for achieving the target temperature, the threshold being equal to or less than an output limit of the digital filter.

Abstract translation: 控制半导体激光器的温度的方法包括：控制供给电流，使得温度控制元件的温度变为目标温度，所述温度控制元件根据所述温度变化控制所述半导体激光器的温度 提供给温度控制元件的供电电流; 并且当检测到所述计算值达到所述阈值时，执行用于将由数字滤波器计算出的计算值保持在阈值的控制，所述计算值是用于实现所述目标温度的所述供电电流，所述阈值等于或小于 数字滤波器的输出限制。

公开(公告)号：US20140328588A1

公开(公告)日：2014-11-06

申请号：US14254161

申请日：2014-04-16

Applicant: Fujitsu Optical Components Limited

Inventor： Yoshio SAKAI ,  Tamotsu AKASHI

IPC: H04B10/2507

CPC classification number: H04B10/63 ,  H04B10/6164

Abstract: An optical communication system includes an optical transmitter, and an optical receiver connected via a transmission line to the optical transmitter, in which system the optical transmitter transmits a continuous-wave light signal that enables beat detection when combined with a local oscillator signal in the optical receiver, and the optical receiver acquires a beat waveform through digital sampling by detecting the light signal using the local oscillator signal, performs frequency analysis on digitally sampled data having the beat waveform prior to demodulation, and controls the local oscillator frequency based upon the beat frequency.

Abstract translation: 光通信系统包括光发射机和经由传输线路连接到光发射机的光接收机，在该系统中，光发射机发射连续波光信号，当与光学发射机中的本地振荡器信号组合时，能够进行拍频检测 接收机，并且光接收机通过使用本地振荡器信号检测光信号通过数字采样获取拍频波形，对在解调之前具有拍频波形的数字采样数据进行频率分析，并且基于拍频来控制本地振荡器频率 。

公开(公告)号：US08794848B2

公开(公告)日：2014-08-05

申请号：US14040919

申请日：2013-09-30

Applicant: Fujitsu Optical Components Limited

Inventor： Kazuya Sasaki ,  Yasuo Tanaka

IPC: G02B6/36

CPC classification number: G02B6/36 ,  G02B6/4246 ,  G02B6/4261 ,  G02B6/4278 ,  G02B6/4284

Abstract: An optical module includes a rotating bail disposed on a front part of a case that is inserted into and removed from a cage; a slide plate that slides along a longitudinal direction of the case in conjunction with rotation of the bail; and an engagement member is disposed on the slide plate, freely engages with an engagement member of the cage, and is released from an engaged state by a sliding of the slide plate in conjunction with the rotation of the bail. The bail and the slide plate are formed by an integrated metal plate in a folded state.

Abstract translation: 光学模块包括设置在壳体前部的旋转吊环，所述壳体的前部插入和移出笼子; 结合所述吊环的旋转沿着所述壳体的纵向方向滑动的滑板; 并且接合构件设置在滑动板上，与保持架的接合构件自由接合，并且通过滑动板与拨号的旋转的滑动而从接合状态释放。 吊环和滑板由处于折叠状态的集成金属板形成。