公开(公告)号：US20090154868A1

公开(公告)日：2009-06-18

申请号：US12117707

申请日：2008-05-08

Applicant: Mi-Ran PARK ,  O-Kyun Kwon ,  Jeong-Woo Park ,  Gyung-Ock Kim

Inventor： Mi-Ran PARK ,  O-Kyun Kwon ,  Jeong-Woo Park ,  Gyung-Ock Kim

IPC: G02F1/295

CPC classification number: G02F1/01708 ,  B82Y20/00 ,  G02F1/025 ,  G02F2001/0152 ,  G02F2201/302 ,  G02F2201/34 ,  G02F2203/02

Abstract: Provided are semiconductor opto-electronic integrated circuits and methods of forming the same. The semiconductor opto-electronic integrated circuit includes: an optical waveguide disposed on a substrate and including an input terminal and an output terminal; an optical grating formed on the optical waveguide; and an optical active device disposed on the optical grating and receiving an optical signal from the optical waveguide through the optical grating to modulate the optical signal.

Abstract translation: 提供半导体光电集成电路及其形成方法。 半导体光电集成电路包括：设置在基板上并包括输入端子和输出端子的光波导; 形成在光波导上的光栅; 以及设置在光栅上的光学有源器件，并通过光栅从光波导接收光信号，以调制光信号。

公开(公告)号：US20070071061A1

公开(公告)日：2007-03-29

申请号：US10584507

申请日：2003-12-24

Applicant: Giulia Pietra ,  Giacomo Gorni

Inventor： Giulia Pietra ,  Giacomo Gorni

IPC: H01S3/10 ,  H01S3/08

CPC classification number: G02B6/12007 ,  G02B6/124 ,  G02F1/216 ,  G02F2201/302 ,  G02F2203/055 ,  G02F2203/15 ,  H01S3/08059 ,  H01S3/105 ,  H01S3/1055 ,  H01S5/12 ,  H01S5/141 ,  H01S5/142

Abstract: A tunable resonant grating filter that can reflect optical radiation at a resonant wavelength, the resonant wavelength being selectively variable. The filter includes a diffraction grating, a planar waveguide, and a light transmissive material having a selectively variable refractive index to permit tuning of the filter, the light transmissive material forming a tunable cladding layer for the waveguide, preferably a liquid crystal material. The diffraction grating is placed on the opposite side of the tunable layer with respect to the planar waveguide, thereby making it possible to tailor the grating structural parameters to the desired bandwidth of the filter response without significantly affecting the tunability of the filter. Within the resonant structure, the core layer, i.e., the waveguide, can be placed close to the tunable layer either in direct contact with the tunable layer or with an interposed relatively thin intermediate layer(s) between the core and the tunable layer.

Abstract translation: 可谐振光栅滤波器，可以反射谐振波长的光辐射，谐振波长是有选择性的。 滤光器包括衍射光栅，平面波导和具有选择性可变折射率以允许调谐滤光器的透光材料，所述透光材料形成用于波导的可调谐包覆层，优选为液晶材料。 衍射光栅相对于平面波导放置在可调谐层的相反侧，从而使得可以将光栅结构参数定制到滤波器响应的期望带宽，而不会显着影响滤波器的可调性。 在谐振结构内，芯层即波导可以靠近可调谐层放置，或者与可调谐层直接接触，或者在芯和可调谐层之间插入相对较薄的中间层。

公开(公告)号：US07042612B2

公开(公告)日：2006-05-09

申请号：US10295376

申请日：2002-11-15

Applicant: Pavel I. Lazarev ,  Michael V. Paukshto ,  Vladimir Sulimov

Inventor： Pavel I. Lazarev ,  Michael V. Paukshto ,  Vladimir Sulimov

IPC: G02B1/03

CPC classification number: G02F1/035 ,  G02F1/0118 ,  G02F1/0356 ,  G02F1/065 ,  G02F1/1326 ,  G02F1/3131 ,  G02F1/3132 ,  G02F2201/15 ,  G02F2201/302 ,  G02F2203/026

Abstract: An electrooptical device is provided comprising at least one substrate, at least one pair of electrodes and at least one layer of an electrooptical material. The electrooptical material represents an optically anisotropic thin crystal film and contains molecules having aromatic rings and possessing a lattice with an interplanar spacing (Bragg's reflection) of 3.4±0.2 Å along one of optical axes. The electrooptical material has anisotropic refractive indices and/or anisotropic absorption coefficients that are depended on an electric field strength.

Abstract translation: 提供了一种电光装置，其包括至少一个衬底，至少一对电极和至少一层电光材料层。 电光学材料表示光学各向异性薄膜，并且包含具有芳环并且具有沿着光轴的3.4±0.2埃的晶面间距（布拉格反射）的晶格的分子。 电光材料具有取决于电场强度的各向异性折射率和/或各向异性吸收系数。

公开(公告)号：US20040264850A1

公开(公告)日：2004-12-30

申请号：US10609837

申请日：2003-06-30

Inventor： David A.G. Deacon ,  Steven J. Madden ,  Jorg Hubner

IPC: G02B006/293 ,  G02B006/34

CPC classification number: G02B6/29319 ,  G02B6/02204 ,  G02B6/29322 ,  G02B6/29338 ,  G02B6/29383 ,  G02B6/29395 ,  G02F1/0147 ,  G02F2201/17 ,  G02F2201/302 ,  G02F2201/307 ,  G02F2203/585 ,  H04J14/0201

Abstract: A set of three gratings may be operated in a vernier loop fashion to select a particular wavelength from a wavelength division multiplexed system. As a result, an optical add/drop multiplexer may be provided that can be tuned to select a desired wavelength. In one embodiment, the tuning may be done thermo-optically.

Abstract translation: 一组三个光栅可以以游标循环方式操作，以从波分复用系统中选择特定波长。 结果，可以提供可以被调谐以选择所需波长的光分插复用器。 在一个实施例中，调谐可以热光学完成。

公开(公告)号：US06763165B1

公开(公告)日：2004-07-13

申请号：US10050329

申请日：2002-01-15

Applicant: Jan-Olof Wesström ,  Lennart P. O. Lundqvist

Inventor： Jan-Olof Wesström ,  Lennart P. O. Lundqvist

IPC: G02B634

CPC classification number: H01S5/06256 ,  G02B2006/12107 ,  G02B2006/12147 ,  G02F1/011 ,  G02F2201/302 ,  H01S5/06804 ,  H01S5/0687 ,  H01S5/1035 ,  H01S5/1209 ,  H01S5/1231 ,  H01S5/1237 ,  H01S5/124 ,  H01S2304/00

Abstract: In a grating-assisted coupler, the mode of the first waveguide of the coupler may include some electric field in the second waveguide, with the effect that when light lasses from an input waveguide to the first waveguide, some light is launched, or injected, directly into the mode of the second waveguide. This injected light may or may not be in phase with the light subsequently coupled into the side of the second waveguide from the first waveguide via grating assistance. The grating structure is formed to ensure a desired phase relationship between the injected light and the grating coupled light: under certain conditions of relative phase, the transmission through the coupler may be increased and the bandwidth may be reduced.

Abstract translation: 在光栅辅助耦合器中，耦合器的第一波导的模式可以包括第二波导中的一些电场，其效果是当光从输入波导到第一波导的照射时，发射或注入一些光， 直接进入第二波导的模式。 该注入的光可以或可以不与从第一波导经由光栅辅助耦合到第二波导侧的光同时相。 形成光栅结构以确保注入的光和光栅耦合光之间的期望的相位关系：在相对相位的某些条件下，可以增加通过耦合器的透射率并且可以减小带宽。

公开(公告)号：US06760512B2

公开(公告)日：2004-07-06

申请号：US09877976

申请日：2001-06-08

Applicant: David M. Pepper

Inventor： David M. Pepper

IPC: G02B626

CPC classification number: G02F1/011 ,  G02F1/292 ,  G02F2201/20 ,  G02F2201/302

Abstract: A programmable electro-optically controlled optical delay device providing multiple optical outputs. The optical delay device provides multiple output ports where the optical propagation delay increases at each port. An incident optical beam is propagated within electro-optically active material within the device, so that the propagation delay at each output port may be varied according to an applied voltage. In an optical beam steering system, the present invention provides true-time delay for multiple optical beams, allowing the beams radiated by the beam steering system to be time-coincident. The present invention provides for one or two dimensional beam steering.

Abstract translation: 提供多个光输出的可编程电光控制光延迟器件。 光延迟器件提供多个输出端口，其中光传播延迟在每个端口处增加。 入射光束在装置内的电光活性材料内传播，使得每个输出端口处的传播延迟可以根据所施加的电压而变化。 在光束转向系统中，本发明为多个光束提供实时延迟，允许由光束转向系统辐射的光束与时间重合。 本发明提供一维或二维光束转向。

公开(公告)号：US20030025986A1

公开(公告)日：2003-02-06

申请号：US09896953

申请日：2001-06-29

Applicant: HRL Laboratories, LLC

Inventor： Stanislav I. Ionov

IPC: G02F001/295 ,  G03H001/10 ,  G02F001/29

CPC classification number: G02F1/011 ,  G02F2201/066 ,  G02F2201/20 ,  G02F2201/302 ,  G02F2201/307 ,  G02F2202/20

Abstract: An optical delay generator comprises a first waveguide made from electro-optically active material resonantly coupled to a second non-electro-optically active waveguide. The first waveguide contains a chirped distributed Bragg reflector structure which reflects optical signals at a specific wavelength at a specific reflection point within the structure. An electric field applied to the first waveguide changes the refractive index of the electro-optically active material and thus shifts the reflection point. Optical signals reflecting from the reflection point are resonantly coupled into the second waveguide, and are thus not affected by the electric field applied to the first waveguide. The controllable optical delay applied to the optical signals results from control over the reflection point and the round-trip travel time for an optical signal forward propagating in the first waveguide, being reflected at the reflection point, and backward propagating in the second waveguide.

公开(公告)号：US06353690B1

公开(公告)日：2002-03-05

申请号：US09504734

申请日：2000-02-16

Applicant: Mykola Kulishov

Inventor： Mykola Kulishov

IPC: G02F1295

CPC classification number: G02F1/2955 ,  G02F1/05 ,  G02F1/065 ,  G02F1/292 ,  G02F2201/124 ,  G02F2201/15 ,  G02F2201/302 ,  G02F2201/305 ,  G02F2202/022 ,  G02F2202/20

Abstract: A diffraction grating for a waveguide or for externally incident light. The grating includes a substrate and an electrooptic structure extending over it. The electrooptic structure may include a waveguide having a propagation axis. A first and a second electrode structure are provided on either side of the electrooptic structure so that an electric field is generated in the electrooptic structure when a potential is applied to the electrodes. The first electrode structure has an interdigitated configuration defining a plurality of fingers. In use, respective potentials V0 and V0+&Dgr;V are applied to adjacent fingers. The diffraction grating induced in the electrooptic structure by the periodic electric field advantageously has a refractive index adjustable by varying V0 and &Dgr;V and a spatial periodicity adjustable by varying &Dgr;V.

Abstract translation: 用于波导或外部入射光的衍射光栅。 光栅包括基底和延伸在其上的电光结构。 电光结构可以包括具有传播轴的波导。 第一和第二电极结构设置在电光学结构的两侧，使得当电极被施加到电极时，在电光学结构中产生电场。 第一电极结构具有限定多个指状物的叉指构型。 在使用中，各个电位V0和V0 + DELTAV被施加到相邻的手指。 通过周期性电场在电光学结构中感应的衍射光栅有利地具有通过改变V0和DELTAV可调整的折射率，并且通过改变DELTAV可调整空间周期。

公开(公告)号：US20020024718A1

公开(公告)日：2002-02-28

申请号：US09933085

申请日：2001-08-21

Applicant: Riken

Inventor： Kodo Kawase ,  Hiromasa Ito ,  Jun-ichi Shikata

IPC: G02F001/39

CPC classification number: G02F1/39 ,  G02F2201/302 ,  G02F2203/13

Abstract: A THz-wave generator according to the present invention includes a nonlinear optical crystal 1 capable of parametric generation, a first laser device 12 for injecting a single-frequency first laser beam 7 as a pump wave into the nonlinear optical crystal, and a second laser device 14 for injecting a different single-frequency second laser beam 8 to thereby injection-seed a second laser beam 8 in a direction in which an idler wave is generated by the pump wave. By this configuration, it is possible, in generation of a THz-wave by use of the parametric effect in the nonlinear optical crystal under a non-collinear phase matching condition, to greatly increase an power of the THz-wave, to narrow its spectrum width, to make variable the wavelength of a generated THz-wave, and to hold its generation direction almost constant.

Abstract translation: 根据本发明的太赫兹波发生器包括能够参数化生成的非线性光学晶体1，用于将单频第一激光束7作为泵波注入到非线性光学晶体中的第一激光器件12和第二激光器 装置14，用于注入不同的单频第二激光束8，从而在由泵浦波产生惰轮的方向上注入种子第二激光束8。 通过这种结构，在非线性相位匹配条件下，通过使用非线性光学晶体中的参数效应来产生THz波可以大大增加THz波的功率，以使其频谱变窄 宽度，使生成的THz波的波长变化，并保持其生成方向几乎恒定。

公开(公告)号：US06278815B1

公开(公告)日：2001-08-21

申请号：US09446953

申请日：2000-03-13

Applicant: Hans Poisel

Inventor： Hans Poisel

IPC: G02B626

CPC classification number: G02F1/011 ,  G02F2201/302

Abstract: What is described here is a device for optical signal transmission between two dynamically decoupled systems, preferably two systems moving relative to each other, comprising at least one emitter means including a first source of light, which is mounted on said first system, as well as a receiver means including at least one fiber optical wave guide, which is mounted on said second system and along which said light source is moved and into which the light of said light source can be injected. The invention is characterized by the provisions that a photo refractive layer is applied at least on that surface of said fiber optical wave guide which is immediately opposite to said first light source, and that at least one source of coherent light is mounted on said first system, which emits light which dynamically imprints an optical grating into said photo refractive layer due to beam superimposition at the site where the light is injected, which grating presents refractive properties for the light of said first source of light so that the light can be injected into said optical fiber

Abstract translation: 这里描述的是用于在两个动态解耦系统之间的光信号传输的装置，优选两个相对于彼此移动的系统，包括安装在所述第一系统上的至少一个包括第一光源的发射器​​装置，以及 接收机装置，包括至少一个光纤波导，其安装在所述第二系统上，所述光源沿着所述第二光学系统移动，并且所述光源的光可以被注入。 本发明的特征在于，至少在与所述第一光源相对的所述光纤波导的表面上施加光折射层，并且至少一个相干光源安装在所述第一系统上 ，其发射由于光注入的位置处的光束叠加而将光栅动态地印记到所述光折射层中的光，该光栅对于所述第一光源的光呈现折射性，使得光可以被注入 所述光纤