公开(公告)号：US07873244B2

公开(公告)日：2011-01-18

申请号：US12311442

申请日：2007-09-28

Applicant: Yuhki Kinpara ,  Junichiro Ichikawa ,  Satoshi Oikawa

Inventor： Yuhki Kinpara ,  Junichiro Ichikawa ,  Satoshi Oikawa

IPC: G02F1/035 ,  G02F1/01 ,  G02B6/26 ,  G02B6/42

CPC classification number: G02F1/0356 ,  G02F1/0316 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/127

Abstract: To provide a light control device which is possible to realize a velocity matching between a microwave and an optical wave or an impedance matching of microwaves even through a signal oath having a high impedance of 70Ω or more, and is possible to reduce a driving voltage. The light control device having an electro-optical effect includes a thin plate 1 having a thickness of 10 μm or less, an optical waveguide 2 formed in the thin plate, and a controlling electrode from controlling light which passes through the optical waveguide, wherein the controlling electrode includes a first electrode and a second electrode which are disposed so as to interpose the thin plate, wherein the first electrode has a coplanar type electrode which includes at least a signal electrode 4 and a grounding electrode 5 (51), wherein the second electrode includes at least a grounding electrode 54 and is configured so as to apply an electric field to the optical waveguide in cooperation with the signal electrode of the first electrode, and wherein the signal electrode of the first electrode includes a branched signal path in which at least one signal path is branched into two or more in the middle of the path.

Abstract translation: 提供一种能够实现微波和光波之间的速度匹配或微波的阻抗匹配的光控制装置，即使通过具有高阻抗70＆OHgr的信号誓言， 以上，能够降低驱动电压。 具有电光效应的光控制装置包括厚度为10μm以下的薄板1，形成在薄板中的光波导2，以及控制电极，其控制通过光波导的光，其中， 控制电极包括设置成插入薄板的第一电极和第二电极，其中第一电极具有至少包括信号电极4和接地电极5（51）的共面型电极，其中第二电极 电极至少包括接地电极54，并且被配置为与第一电极的信号电极协作地向光波导施加电场，并且其中第一电极的信号电极包括分支信号路径，其中在 至少一条信号路径在路径的中间分支为两个或更多个。

公开(公告)号：US07830580B2

公开(公告)日：2010-11-09

申请号：US12530569

申请日：2008-02-06

Applicant: Tomoaki Kato

Inventor： Tomoaki Kato

IPC: G02F1/03 ,  G02B26/00 ,  G02B6/10

CPC classification number: G02F1/025 ,  G02F2001/0154 ,  G02F2201/127

Abstract: An optical modulator is provided with a stripe-shaped optical waveguide, which has an upper clad layer, a lower clad layer formed between the upper clad layer and a substrate, and an undoped core layer which is arranged between the upper clad layer and the lower clad layer and has a complex refractive index that changes corresponding to the intensity of an applied electric field, to a signal light propagating inside. On both sides of the stripe-shaped optical waveguide, conductor walls are configured by arranging a pair of parallel blocking flat boards with an insulating wall in between. Thus, the semiconductor optical modulator having a high optical modulation efficiency is provided.

Abstract translation: 光调制器设置有条形光波导，其具有上覆盖层，形成在上覆盖层和基板之间的下覆盖层，以及布置在上覆层和下层之间的未掺杂芯层 并且具有与施加的电场强度相对应的复合折射率与内部传播的信号光。 在条形光波导的两侧，导体壁通过在其间布置一对具有绝缘壁的平行阻挡平板而构成。 因此，提供了具有高光调制效率的半导体光调制器。

公开(公告)号：US20100247023A1

公开(公告)日：2010-09-30

申请号：US12733869

申请日：2008-09-25

Applicant: Yasuhiro Ishikawa ,  Toru Sugamata

Inventor： Yasuhiro Ishikawa ,  Toru Sugamata

IPC: G02F1/035 ,  G02B6/12

CPC classification number: G02F1/0356 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/127

Abstract: An optical waveguide type modulator with a decreased driving voltage and an improved return loss of a driving signal is provided which includes an optical waveguide having a Mach-Zehnder type optical waveguide portion and a signal electrode and a ground electrode modulating an optical wave guided in the optical waveguide. The signal electrode is arranged along at least one of two branched waveguides and Y-branched portions of the Mach-Zehnder type optical waveguide portion and along a part of one Y-branched portion connected to the one branched waveguide. Outside the part of one Y-branched portion, the signal electrode is drawn across a symmetric axis of the Mach-Zehnder type optical waveguide portion with a gap from the one Y-branched portion, and is drawn so as not to extend along the other Y-branched portion connected to the one branched waveguide and so as not to extend across the symmetric axis with a gap from the one branched waveguide.

Abstract translation: 提供了具有降低的驱动电压和改善的驱动信号的回波损耗的光波导型调制器，其包括具有马赫 - 曾德尔型光波导部分和信号电极的光波导以及调制在 光波导。 信号电极沿着马赫 - 策德尔型光波导部分的两个分支波导和Y分支部分中的至少一个并沿着连接到一个分支波导的一个Y分支部分的一部分布置。 在一个Y分支部分的一部分之外，信号电极沿着Mach-Zehnder型光波导部分的对称轴线从一个Y分支部分间隙地拉出，并被拉伸成不沿着另一个Y分支部分延伸 Y分支部分连接到一个分支波导，并且不跨越对称轴延伸，与一个分支波导具有间隙。

公开(公告)号：US20100202722A1

公开(公告)日：2010-08-12

申请号：US12634793

申请日：2009-12-10

Applicant: Masaki SUGIYAMA

Inventor： Masaki SUGIYAMA

IPC: G02F1/035

CPC classification number: G02F1/0305 ,  G02F1/0316 ,  G02F1/0356 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/127 ,  G02F2201/16 ,  G02F2202/07 ,  G02F2202/20 ,  G02F2203/07 ,  G02F2203/20

Abstract: In an optical modulator, respective lights for where one input light has been branched, are input via a curved waveguide to a plurality of optical modulation sections arranged in parallel on the same substrate. In a Mach-Zehnder type optical waveguide, a spacing between the pair of branching waveguides of the adjacent optical modulation sections, is formed so as to become wider in the vicinity of a border of an input side polarization inversion region than in the vicinity of a start point of an interaction portion. As a result, even if a signal electrode of the optical modulation sections shifts at the boundary portion of the polarization inversion region, the spacing between the signal electrodes does not become narrow, and hence the radius of curvature of curved waveguides for guiding the input light to the respective optical modulation sections can be increased, so that it becomes possible to apply input light to the optical modulation sections at low loss.

Abstract translation: 在光调制器中，通过弯曲波导将一个输入光已被分支的各个光输入到在同一基板上并联布置的多个光调制部分。 在Mach-Zehnder型光波导中，相邻光调制部分的一对分支波导之间的间隔形成为在输入侧极化反转区域的边界附近比在 互动部分的起点。 结果，即使光调制部的信号电极在极化反转区域的边界部分移动，信号电极之间的间隔也不会变窄，因此用于引导输入光的弯曲波导的曲率半径 可以增加各个光调制部分，使得可以以低损耗将输入光施加到光调制部分。

公开(公告)号：US20090148094A1

公开(公告)日：2009-06-11

申请号：US12352415

申请日：2009-01-12

Applicant: Daniel Kucharski ,  Bahnam Analui ,  Lawrence C. Gunn, III ,  Roger Koumans ,  Thierry Pinguet ,  Thiruvikraman Sadagopan

Inventor： Daniel Kucharski ,  Bahnam Analui ,  Lawrence C. Gunn, III ,  Roger Koumans ,  Thierry Pinguet ,  Thiruvikraman Sadagopan

IPC: G02F1/035

CPC classification number: G02F1/025 ,  G02F1/0121 ,  G02F1/2255 ,  G02F1/2257 ,  G02F2201/127 ,  G02F2201/16 ,  G02F2201/20

Abstract: Various embodiments described herein comprises an optoelectronic device comprising a waveguide structure including a plurality of optical modulator elements each having an optical property that is adjustable upon application of an electrical signal so as to modulate light guided in the waveguide structure. The optoelectronic device also comprises a plurality of amplifiers in distributed fashion. Each amplifier is electrically coupled to one of the optical modulators to apply electrical signals to the optical modulator.

Abstract translation: 本文描述的各种实施例包括光电子器件，其包括波导结构，其包括多个光学调制器元件，每个光学调制器元件具有在施加电信号时可调整的光学特性，以便调制在波导结构中引导的光。 光电子器件还分布式地包括多个放大器。 每个放大器电耦合到光调制器之一以将电信号施加到光调制器。

公开(公告)号：US07426326B2

公开(公告)日：2008-09-16

申请号：US11855232

申请日：2007-09-14

Applicant: Robert P Moeller ,  James H Cole

Inventor： Robert P Moeller ,  James H Cole

IPC: G02B6/26 ,  G02B6/42 ,  G02F1/295

CPC classification number: G02F1/0356 ,  G02F2001/212 ,  G02F2201/127 ,  G02F2201/16 ,  G02F2202/20

Abstract: An electro-optic modulator having a substrate, one or more optical waveguides, at least one active electrode formed on the substrate and aligned over the optical waveguide, the active electrode operating to induce a refractive index change in the optical waveguide. The active electrode has a lower surface arranged facing the substrate, an upper surface arranged away from the substrate, substantially planar side walls, and rounded corners between the side walls and the lower surface of the active electrode. The electrode can be a bridge electrode, with two lower portions and an upper portion connected to the lower portions, the lower portions spaced apart from each other, each of the two lower portions of the active electrode extending over one of the optical waveguides. Each of the lower portions has rounded convex corners. The upper surface of the electrode can also have rounded corners or a completely rounded upper surface.

Abstract translation: 一种电光调制器，其具有衬底，一个或多个光波导，至少一个有源电极，形成在衬底上并对准在光波导上，该有源电极用于在光波导中引起折射率变化。 有源电极具有面向衬底的下表面，远离衬底设置的上表面，基本平坦的侧壁以及侧壁与活性电极的下表面之间的圆角。 电极可以是桥电极，具有两个下部，并且上部连接到下部，下部彼此间隔开，有源电极的两个下部中的每一个延伸超过光波导中的一个。 每个下部具有圆形的凸角。 电极的上表面也可以具有圆角或完全圆形的上表面。

公开(公告)号：US20080193074A1

公开(公告)日：2008-08-14

申请号：US12025347

申请日：2008-02-04

Applicant: Masaki SUGIYAMA

Inventor： Masaki SUGIYAMA

IPC: G02F1/295

CPC classification number: G02F1/2255 ,  G02F2001/212 ,  G02F2201/127

Abstract: An optical modulator comprising; an optical waveguide in which input light propagates; a signal electrode having an end portion in which signal microwave is input and having an interaction area in which the signal microwave interacts with the light propagating in the optical waveguide; and, a ground electrode forming a coaxial structure with the signal electrode, wherein, width of the end portion is greater than width of the interaction area and thickness of the end portion is less than thickness of the interaction area.Also disclosed is an optical modulator, further comprising a substrate having an electro-optic effect; and, a buffer layer on the substrate, wherein, the signal electrode and ground electrode are formed on the buffer layer, and thickness of the buffer layer near the end portion of the signal electrode is greater than thickness of the buffer layer near the interaction area.

Abstract translation: 一种光调制器，包括： 输入光传播的光波导; 信号电极，其具有输入信号微波的端部，并且具有信号微波与在光波导中传播的光相互作用的相互作用区域; 以及与所述信号电极形成同轴结构的接地电极，其中，所述端部的宽度大于所述相互作用面积的宽度，并且所述端部的厚度小于所述相互作用面积的厚度。 还公开了一种光学调制器，还包括具有电光效应的衬底; 以及衬底上的缓冲层，其中信号电极和接地电极形成在缓冲层上，并且靠近信号电极的端部的缓冲层的厚度大于相互作用区域附近的缓冲层的厚度 。

公开(公告)号：US20080089633A1

公开(公告)日：2008-04-17

申请号：US11855232

申请日：2007-09-14

Applicant: Robert Moeller ,  James Cole

Inventor： Robert Moeller ,  James Cole

IPC: G02F1/035

CPC classification number: G02F1/0356 ,  G02F2001/212 ,  G02F2201/127 ,  G02F2201/16 ,  G02F2202/20

Abstract: An electro-optic modulator having a substrate, one or more optical waveguides, at least one active electrode formed on the substrate and aligned over the optical waveguide, the active electrode operating to induce a refractive index change in the optical waveguide. The active electrode has a lower surface arranged facing the substrate, an upper surface arranged away from the substrate, substantially planar side walls, and rounded corners between the side walls and the lower surface of the active electrode. The electrode can be a bridge electrode, with two lower portions and an upper portion connected to the lower portions, the lower portions spaced apart from each other, each of the two lower portions of the active electrode extending over one of the optical waveguides. Each of the lower portions has rounded convex corners. The upper surface of the electrode can also have rounded corners or a completely rounded upper surface.

Abstract translation: 一种电光调制器，其具有衬底，一个或多个光波导，至少一个有源电极，形成在衬底上并对准在光波导上，该有源电极用于在光波导中引起折射率变化。 有源电极具有面向衬底的下表面，远离衬底设置的上表面，基本平坦的侧壁以及侧壁与活性电极的下表面之间的圆角。 电极可以是桥电极，具有两个下部，并且上部连接到下部，下部彼此间隔开，有源电极的两个下部中的每一个延伸超过光波导中的一个。 每个下部具有圆形的凸角。 电极的上表面也可以具有圆角或完全圆形的上表面。

公开(公告)号：US07088874B2

公开(公告)日：2006-08-08

申请号：US10671165

申请日：2003-09-25

Applicant: Valerio Pruneri ,  Michele Belmonte ,  Massimo Orio

Inventor： Valerio Pruneri ,  Michele Belmonte ,  Massimo Orio

IPC: G02F1/035

CPC classification number: G02F1/2255 ,  G02F1/3558 ,  G02F2001/212 ,  G02F2201/122 ,  G02F2201/127

Abstract: An electro-optical device capable of modulating the amplitude or phase of an optical output in response to an electrical data or control signal, or of switching it, has reduced frequency-dependence and a better combination of operating voltage and bandwidth. It comprises a body of electro-optically active material, waveguides for passing light through the body, and electrodes for applying an electric field with a frequency in the microwave region to the body, and its transverse geometry is such as to maintain adequate phase velocity matching between optical and microwave frequencies. There is a discontinuity in either the body or at least one of the electrodes such that the direction of the electro-optic effect is reversed for a portion of the length of the device at or near its downstream end.The result of such a discontinuity (in combination with phase velocity matching) is that the device operates in three successive zones: in the upstream zone, desirable phase change is induced for all frequencies in the bandwidth of the device; in the middle zone, desirable phase change is induced for frequencies in the upper part of the bandwidth, but phase change in the lower frequencies becomes excessive; while in the downstream zone, there is no significant phase change in the higher frequencies but the excess change at lower frequencies is reversed.

Abstract translation: 能够响应于电数据或控制信号调制光输出的幅度或相位或者对其进行切换的电光装置具有降低的频率依赖性和更好的组合工作电压和带宽。 它包括一个电光活性材料体，用于使光通过本体的波导和用于将微波区域中频率的电场施加到身体的电极，并且其横向几何形状保持足够的相速度匹配 在光学和微波频率之间。 在主体或至少一个电极中存在不连续性，使得在其下游端处或其下游端处的器件的长度的一部分，电光效应的方向被反转。

公开(公告)号：US20050141072A1

公开(公告)日：2005-06-30

申请号：US10501644

申请日：2003-01-15

Applicant: Yee Lam ,  Hiroshi Nakamura ,  Yuen Chan

Inventor： Yee Lam ,  Hiroshi Nakamura ,  Yuen Chan

IPC: G02F1/017 ,  G02F1/01

CPC classification number: B82Y20/00 ,  G02F1/01708 ,  G02F2201/127 ,  G02F2201/16 ,  G02F2203/25

Abstract: The invention relates to an electroabsorption modulator (EAM) (300), comprising a first EAM section (302) optically coupled to a second EAM section (304), a transition wavelength in the electroabsorption (EA) spectrum of the first EAM section (302), at which absorption changes substantially, being different to a transition wavelength in the EA spectrum of the second EAM section (304). The EAM (300) compensates for chirp (which is caused by intrinsic absorption effects) by driving the two sections with a signal (312) generated from a common modulating signal (314). The driving signal (312) at the first EAM section (302) being preferably in anti-phase with the driving signal (312) at the second EAM section (304).

Abstract translation: 本发明涉及电吸收调制器（EAM）（300），其包括光耦合到第二EAM部分（304）的第一EAM部分（302），第一EAM部分（302）的电吸收（EA）光谱中的跃迁波长 ），其吸收基本变化，不同于第二EAM部分（304）的EA光谱中的跃迁波长。 EAM（300）通过用从公共调制信号（314）产生的信号（312）驱动两个部分来补偿啁啾（其由本征吸收效应引起的）。 第一EAM部分（302）处的驱动信号（312）优选地与第二EAM部分（304）处的驱动信号（312）反相。