公开(公告)号：EP0455347A2

公开(公告)日：1991-11-06

申请号：EP91302828.8

申请日：1991-03-28

Applicant: THE FURUKAWA ELECTRIC CO., LTD.

Inventor： Mak, Hon-Ming, c/o Furukawa Ap. 51-305, ,  Yanagawa, Hisaharu, c/o The Furukawa Elec. Ltd.

IPC: G02F1/313 ,  G02F1/015 ,  G02F1/295

CPC classification number: G02F1/3133 ,  G02F2001/0144 ,  G02F2201/125

Abstract: There is provided an optical functional device having a coupling portion (A) in which two optical waveguides (27, 28) formed of semiconductor material are evanescent-coupled to each other and arranged in parallel and comprising voltage application electrodes (32a, b) electrically connected to each other and disposed on an upstream side portion (30a) of one of the two optical waveguides and a downstream side portion (29b) of the other optical waveguide and current injection electrodes (31a, b) electrically connected to each other, disposed on a downstream side portion (30b) of the former one of the two optical waveguides and electrically isolated from the voltage application electrodes. In further forms (Figs. 18-26) N-stage (N is an integer larger than 2) electrodes of reversal Δ ß structure are continuously disposed in the optical waveguide, first electrodes electrically connected to each other are disposed on the upstream side portion of one of the two optical waveguides and the downstream side portion of the other optical waveguide between an Mth (M is an integer which satisfies the relation that 1 ≦ M ≦ (N-1) stage electrode and an (M+1)th stage electrode and second electrodes which are electrically connected to each other but are electrically separated from the first electrodes are disposed on the downstream side portion of the former one of the two optical waveguides and the upstream side portion of other optical waveguide. The optical functional device can be operated as an optical splitter or polarization switch by combining the current injection operation and the voltage application operation with respect to the electrodes.

Abstract translation: 提供了具有耦合部分（A）的光学功能器件，其中由半导体材料形成的两个光波导（27,28）彼此衰减耦合并且并联布置，并且包括电压施加电极（32a，b） 彼此连接并设置在两个光波导中的一个的上游侧部分（30a）和另一个光波导的下游侧部分（29b）和彼此电连接的电流注入电极（31a，b） 在两个光波导中的前一个光波导的下游侧部分（30b）上，并与电压施加电极电隔离。 在另外的形式（图18-26）中，N波段（N是大于2的整数），反向DELTAβ结构的电极连续地设置在光波导中，彼此电连接的第一电极设置在上游侧部分 （M为满足1≤x≤（N-1）级电极的关系的整数和M +（N-1）级电极之间的关系的第2个光波导中的一个和第2光波导的下游侧部分之间） 第一级电极和第二电极彼此电连接但与第一电极电分离设置在两个光波导中的前一个光波导的下游侧部分和另一个光波导的上游侧部分上。 光功能器件可以通过组合电流注入操作和相对于电极的电压施加操作而被用作光分路器或偏振开关。

公开(公告)号：EP0410531A1

公开(公告)日：1991-01-30

申请号：EP90202007.2

申请日：1990-07-23

Applicant: ALCATEL ALSTHOM RECHERCHE Société Anonyme

Inventor： Angenent, Johannès, Société Civile S.P.I.D. ,  Cavailles, Jean Aristide, Société Civile S.P.I.D.

IPC: G02F1/29

CPC classification number: G02F1/3133 ,  G02F2201/125 ,  G02F2203/06

Abstract: Dispositif semiconducteur intégré incluant un cou­pleur directionnel optoélectronique, ce coupleur comprenant deux guides de lumière rectilignes monomodes parallèles sur une longueur totale D séparés par une petite distance d , ce coupleur comprenant aussi quatre électrodes de même type de conductivité disposées à raison de deux sur chaque guide et au moins une autre électrode de type de conductivité opposé, ca­ractérisé en ce que le coupleur présente un fonctionnement indépendant des composantes lumineuses transverses électriques et transverse magnétiques, respectivement TE et TM, contenues dans des proportions aléatoires dans le signal d'entrée, dans les conditions où les paramètres structurels du coupleur permettent de vérifier les relations suivantes :
a) Z = D/2
b) φ TE . L CTE = φ TM . L CTM
c) L CTM /L CTE = (1 - m/n) / ε = k
d) D/L CTM = [p√8/(1-εk)] (1/|sin[p.π/(1-εk)]|}
relations dans lesquelles :
Z est la dimension de chaque électrode sur les guides,
φ TM et φ TE sont les déphasages provoqués par les changements d'indices sous l'action d'un champ électrique,
L CTE et L CTM sont les longueurs de couplage pour TE et pour TM,
m, n, p sont des entiers quelconques
ε = ± 1
Application : Télécommunications

公开(公告)号：EP0317531A1

公开(公告)日：1989-05-24

申请号：EP88850350.5

申请日：1988-10-19

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON

Inventor： Granestrand, Per Olov

IPC: G02F1/00 ,  G02B6/12

CPC classification number: G02B6/126 ,  G02F1/3132 ,  G02F2001/0144 ,  G02F2201/125 ,  G02F2203/06

Abstract: Polarization directing optoelectronic coupler on a wafer of doubly refracting material with an optical axis (Z). The coupler has an interaction region (L1) with waveguides (3,4) and an electrode means. The interaction region (L1) is divided into two sections (S1, S2) with a central electrode (6; 9) and two outer electrodes (5, 7; 8,10) in each section. Voltage sources (12,13, 14; 15, 16, 17) are connected to the electrodes and generate electrical fields through the waveguides (3,4). The electrical field between the outer electrodes (5,7; 8,10) has in each section (S1, S2) the same ' direction in both waveguides and achieves an Δτ modulation. The electrical field between the central electrode (6;9) and outer electrodes (5, 7; 8, 10) has mutually reverse direction in both waveguides in the sections (S1, S2) and achieves a Δβ modulation. For an arbitrarily polarized lightwave (P), both the crossover state and the bar state can be achieved for both the TE and TM modes or one of its oscillation modes (TM) can be crossed over and the other of its oscillation modes (TE) can be coupled straight through. The directional coupler can be driven at low voltages and the required manufacturing accuracy is relatively low.

Abstract translation: 偏振的与光轴（Z）的双折射材料在晶片上引导光电耦合器。 该耦合器具有与波导（3,4）和在电极装置相互作用区域（L1）。 相互作用区（L1）被分成两个部分（S1，S2）具有中心电极（6; 9）和两个外电极（5,7; 8，10）中的每个部分。 电压源（12，13，14; 15，16，17）被连接到电极并产生通过所述波导（3,4）电场。 外部电极之间的电场（5,7; 8,10）具有在每个部分（S1，S2）在两个波​​导和DELTA阴气实现调制相同的方向。 中心电极之间的电场（6; 9）和外部电极（5,7; 8，10）具有在所述部分（S1，S2）和一个实现DELTA测试调制这两个波导相互相反的方向。 对于在任意偏振光波（P）两者的交叉状态和条形状态，可以实现两者的TE和TM模式或它的振荡模式（TM）中的一个可以通过进行杂交而另一个其振荡模式（TE） 可以直接通过耦合。 定向耦合器可在低电压下驱动，并且所要求的制造精度是比较低的。

公开(公告)号：EP0125182B1

公开(公告)日：1987-11-19

申请号：EP84400914.2

申请日：1984-05-04

Applicant: ETAT FRANCAIS représenté par le Ministre des PTT (Centre National d'Etudes des Télécommunications)

Inventor： Baratte, Hervé ,  Lesterlin, Dominique ,  Carenco, Alain

IPC: G02F1/29 ,  G02F1/03

CPC classification number: G02F1/3134 ,  G02F2201/125

公开(公告)号：KR1019950006328B1

公开(公告)日：1995-06-14

申请号：KR1019910004987

申请日：1991-03-29

Applicant: 후루까와덴끼고오교 가부시끼가이샤

Inventor： 무기칸메이 ,  야나가와히사하루

IPC: G02F1/313

CPC classification number: G02F1/3133 ,  G02F2001/0144 ,  G02F2201/125

Abstract: 내용 없음.

公开(公告)号：US20110026879A1

公开(公告)日：2011-02-03

申请号：US12905461

申请日：2010-10-15

Applicant: Milos Popovic ,  Tymon Barwicz

Inventor： Milos Popovic ,  Tymon Barwicz

IPC: G02B6/26

CPC classification number: G02B6/1223 ,  G02B6/107 ,  G02B6/12007 ,  G02F1/0147 ,  G02F1/3133 ,  G02F2001/212 ,  G02F2201/063 ,  G02F2201/125 ,  G02F2203/15 ,  G02F2203/585 ,  H04J14/021 ,  H04Q2213/1301

Abstract: An optical waveguide having a core region with a substantially rectangular cross-section with a selected aspect ratio of width to height. Embodiments include devices incorporating the optical waveguide and methods for using the optical waveguide.

Abstract translation: 一种光波导，其具有具有基本上矩形横截面的芯区域，具有选定的宽度与高度的纵横比。 实施例包括结合光波导的器件和使用光波导的方法。

公开(公告)号：US06909817B2

公开(公告)日：2005-06-21

申请号：US10888653

申请日：2004-07-09

Applicant: Sergio Bosso ,  Emilio Casaccia ,  Davide Frassati ,  Giovanni Ghione ,  Aldo Perasso ,  Marco Pirola

Inventor： Sergio Bosso ,  Emilio Casaccia ,  Davide Frassati ,  Giovanni Ghione ,  Aldo Perasso ,  Marco Pirola

IPC: G02F1/035 ,  G02F1/225

CPC classification number: G02F1/0356 ,  G02F1/2255 ,  G02F2201/125

Abstract: A resonant optical modulator includes an electro-optical substrate, an optical waveguide formed in the substrate and having a variable index of refraction, and an active modulator electrode formed on the substrate in relation to the waveguide to effect electro-optical variation of the index of refraction upon application to the electrode of a modulating signal. An interface port formed on the substrate provides the modulating signal to the electrode from a signal source and has an impedance. An electrical structure, formed on the substrate and coupled to the interface port and the electrode, makes an impedance of the optical modulator substantially equal to the impedance of the signal source. The electrical structure includes a delay line and a stub formed on the substrate.

Abstract translation: 一种谐振光学调制器，包括电光基板，形成在基板中并且具有可变折射率的光波导以及相对于波导形成在基板上的有源调制器电极，以实现电光变化 施加到电极上的调制信号的折射。 形成在基板上的接口端口从信号源向电极提供调制信号，并具有阻抗。 形成在衬底上并耦合到接口端口和电极的电结构使光调制器的阻抗基本上等于信号源的阻抗。 电结构包括延伸线和形成在衬底上的短截线。

公开(公告)号：US5375180A

公开(公告)日：1994-12-20

申请号：US131503

申请日：1993-10-04

Applicant: Edmond J. Murphy

Inventor： Edmond J. Murphy

IPC: G02F1/225 ,  G02F1/313 ,  G02B6/12 ,  H01L21/70

CPC classification number: G02F1/3132 ,  G02F1/225 ,  G02F2201/125

Abstract: A three or more section reverse .DELTA..beta. directional coupler designed to operate at a number of coupling lengths (L/l) selected from a region of a corresponding switching diagram where the cross and bar state switching curves are approximately parallel to each other and to the vertical axis, the vertical axis defining numbers of coupling lengths, or from a region of corresponding process sensitivity plots for the cross and bar states where the cross and bar state voltage curves are both approximately of zero slope. A number of these directional couplers form an optical switching array and a number of arrays form a system or network for switching optical signals each of which are capable of operation with uniform cross and bar state voltages at low crosstalk levels.

Abstract translation: 三个或更多个部分反向DELTA beta定向耦合器被设计成以从交叉和条状切换曲线彼此近似平行的相应开关图的区域中选择的多个耦合长度（L / l）操作，以及 垂直轴，垂直轴限定耦合长度的数量，或者来自交叉和条状态电压曲线都大致为零斜率的交叉和条状状态的对应过程灵敏度图的区域。 这些定向耦合器中的多个形成光开关阵列，并且多个阵列形成用于切换光信号的系统或网络，每个阵列能够在低串扰水平下以均匀的交叉和条状电压进行操作。

公开(公告)号：US5255334A

公开(公告)日：1993-10-19

申请号：US891411

申请日：1992-05-29

Applicant: Hon-Ming Mak ,  Hisaharu Yanagawa

Inventor： Hon-Ming Mak ,  Hisaharu Yanagawa

IPC: G02F1/313 ,  G02B6/10

CPC classification number: G02F1/3132 ,  G02F1/3133 ,  G02F2201/125

Abstract: A 1-input/2-output or 2-input/2-output directional coupler type optical device comprising a junction including two optical waveguides arranged parallel to each other and each fitted with an electrode for controlling a propagation constant, the incidence end or ends of one or both of the optical waveguides being connected to curved or straight optical waveguides, thus forming an incidence-side lead section, and the respective emergence ends of the two optical waveguides being optically connected to curved or straight optical waveguides, thus forming an emergence-side lead section. An electrode for suppressing the mode coupling is mounted on each optical waveguide of the emergence- or incidence-side lead section. A high extinction ratio of 30 dB or more can be obtained in either of cross and through modes by activating a required one of the mode coupling suppressing electrodes while applying an electrical signal to each propagation constant control electrode.

公开(公告)号：US5151957A

公开(公告)日：1992-09-29

申请号：US780908

申请日：1991-10-23

Applicant: Luc Riviere

Inventor： Luc Riviere

IPC: G02B6/126 ,  G02B6/12 ,  G02F1/01 ,  G02F1/313

CPC classification number: G02F1/3132 ,  G02F2001/0144 ,  G02F2201/125

Abstract: This e.g. Z-propagating, X-cut LiNbO.sub.3 :Ti splitter comprises an alternating delta beta directional coupler (39) able to introduce, in the absence of a voltage between its electrodes, a delta beta variation between its propagation constants, which is (a) independent of the polarization state of the guided lightwave and (b) such that the representative point of the coupler on its control diagram is the center of a segment parallel to the abscissa axis of the reference frame in which the diagram is plotted, and defined by two curves respectively corresponding to parallel states and crossed states of the coupler. Application to integrated optics.

Abstract translation: 例如 Z传播的X切割LiNbO 3：Ti分离器包括交替的δβ定向耦合器（39），其能够在其电极之间不存在电压的情况下引入其传播常数之间的δβ变化，其为（a）独立 和（b）使得耦合器在其控制图上的代表点是平行于其中绘制图的参考系的横坐标轴的段的中心，并且由两个 曲线分别对应于耦合器的平行状态和交叉状态。 应用于集成光学。