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公开(公告)号：US08792159B2
公开(公告)日：2014-07-29
申请号：US12401779
申请日：2009-03-11
Applicant: Zeev Zalevsky , Arkady Rudnitsky
Inventor： Zeev Zalevsky , Arkady Rudnitsky
CPC classification number: H01S3/0632 , G02F1/3137 , G02F3/00 , G02F2201/04 , G02F2203/15 , H01S3/0637 , H01S3/06754 , H01S3/094003 , H01S3/10015
Abstract: A device for use in optical signal control is presented. The device comprises an amplification waveguide, including a pumpable medium, and a reference and a control inputs and an output selectively allowing transmission of light respectively into and out of said amplification waveguide. The reference input, the amplification waveguide and the output define together a transmission scheme for reference light through the pumpable medium. The control input and the amplification waveguide define a depletion scheme for the pumpable medium and control light. The device thus allows for controlling an output signal, formed by the transmission of the reference light, by controllable depletion of the pumpable medium.
Abstract translation: 提出了一种用于光信号控制的设备。 该装置包括放大波导，包括可泵送介质，以及参考和控制输入以及选择性地允许光分别进出所述放大波导的光的输出。 参考输入，放大波导和输出一起定义了可泵送介质的参考光的传输方案。 控制输入和放大波导定义了可泵送介质和控制光的耗尽方案。 因此，该装置允许通过可泵送介质的可控耗尽来控制通过参考光的透射而形成的输出信号。
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12.发明申请HIGH SPEED AND LOW LOSS GeSi/Si ELECTRO-ABSORPTION LIGHT MODULATOR AND METHOD OF FABRICATION USING SELECTIVE GROWTH 有权高速和低损耗GeSi / Si电吸收光调制器和使用选择性增长的制造方法公开(公告)号：US20070116398A1
公开(公告)日：2007-05-24
申请号：US11561474
申请日：2006-11-20
Applicant: Dong Pan , Jifeng Liu , Jurgen Michel , Lionel Kimerling
Inventor： Dong Pan , Jifeng Liu , Jurgen Michel , Lionel Kimerling
CPC classification number: G02F1/025 , G02B2006/12142 , G02F2001/0157 , G02F2201/04 , G02F2201/16 , G02F2202/105 , H01L27/1443 , H01L31/028 , H01L31/1055 , H01L31/1812 , Y02E10/50
Abstract: An optoelectronic device includes an input waveguide structure that receives an input optical signal. A GeSi/Si waveguide structure receives from the input waveguide the input optical signal and performs selective optoelectronic operations on the input optical signal. The GeSi/Si waveguide structure outputs an optical or electrical output signal associated with the selective optoelectronic operations performed on the input optical signal. An output waveguide structure receives the output optical signal from the GeSi/Si waveguide structure and provides the optical output signal for further processing.
Abstract translation: 光电子器件包括接收输入光信号的输入波导结构。 GeSi / Si波导结构从输入波导接收输入光信号，并对输入光信号进行选择性光电子操作。 GeSi / Si波导结构输出与在输入光信号上执行的选择性光电子操作相关联的光或电输出信号。 输出波导结构接收来自GeSi / Si波导结构的输出光信号，并提供光输出信号用于进一步处理。
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公开(公告)号：US20040126120A1
公开(公告)日：2004-07-01
申请号：US10657742
申请日：2003-09-05
Applicant: Xtellus, Inc.
Inventor： Gil Cohen , Seongwoo Suh , Yossi Corem
IPC: H04B010/00
CPC classification number: G02F1/1326 , G02B6/266 , G02F1/0115 , G02F1/134309 , G02F1/1396 , G02F1/2955 , G02F2201/04 , G02F2201/17 , G02F2203/48
Abstract: A gain equalizer in which a multichannel input light signal is split into its separate wavelength components by means of a dispersive element such as a grating, and the spatially separated wavelength components are passed through a linear array of variable optical attenuators based on liquid crystal phase elements which modulate the phase of part of the cross section of the light. The separate attenuated wavelength components are then recombined and output. The attenuation level of each variable optical attenuator is adjusted according to the output of the light as a function of its wavelength components, and in this way, the overall wavelength profile of the output light signal can be adjusted to any predefined form, whether a flattened spectral profile, as in gain equalization applications, or a spectral compensating profile.
Abstract translation: 一种增益均衡器，其中通过诸如光栅的色散元件将多通道输入光信号分离成其分离的波长分量，并且空间分离的波长分量通过基于液晶相元件的可变光衰减器的线性阵列 其调制光的横截面的一部分的相位。 然后将单独的衰减波长分量重新组合并输出。 根据作为其波长分量的函数的光的输出来调整每个可变光衰减器的衰减水平，并且以这种方式，可以将输出光信号的总体波长分布调整为任何预定义的形式，无论是扁平化 光谱分布，如增益均衡应用，或光谱补偿曲线。
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公开(公告)号：US20030228088A1
公开(公告)日：2003-12-11
申请号：US10165087
申请日：2002-06-07
Applicant: Fujitsu Limited
Inventor： Kuo-Chuan Liu
IPC: G02B006/35 , G02F001/295
CPC classification number: G02F1/313 , G02F1/0316 , G02F2201/04 , G02F2201/302
Abstract: An electro-optical switch is provided, that includes: a single mode optical waveguide having a thin ferroelectric oxide film for propagating a single mode of light; a coupler adjoining the single mode optical waveguide for coupling a part of the single mode of light from an optical fiber to the single mode optical waveguide; an electrically formed lens in the single mode optical waveguide for collimating the single mode of light from the coupler; and a switching module comprising another electrically formed lens in the single mode optical waveguide, for switching the single mode of light.
Abstract translation: 提供一种电光开关，其包括：具有用于传播单模光的薄铁电氧化膜的单模光波导; 邻接单模光波导的耦合器，将来自光纤的单模光的一部分耦合到单模光波导; 在单模光波导中用于校准来自耦合器的单模光的电成像透镜; 以及包括在单模光波导中的另一电形成透镜的开关模块，用于切换单模光。
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公开(公告)号：US20240329337A1
公开(公告)日：2024-10-03
申请号：US18618562
申请日：2024-03-27
Applicant: TDK CORPORATION
Inventor： Yasuhiro TAKAGI , Hiroki HARA , Atsushi SHIMURA
CPC classification number: G02B6/4214 , G02F1/035 , G02F1/212 , G02F2201/04
Abstract: A Y-branch type optical coupler includes an optical coupling part to which a plurality of input-side optical waveguides through which the plurality of lights propagate, and one output-side optical waveguide are connected, wherein the optical coupling part has an isosceles trapezoid shape of which the width is narrowed in a taper shape at a first angle α from the input side to the output side (a traveling direction of light) in a plan view, at least two input-side optical waveguides among the plurality of input-side optical waveguides are disposed symmetrically with respect to a symmetry axis of the isosceles trapezoid, are inclined at a second angle θ that is different from the first angle α, and are connected to a lower bottom portion of the isosceles trapezoid, and the difference between the first angle and the second angle is 0.9° or more and 14.8° or less.
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Patent Agency Ranking
公开(公告)号：US06885789B2
公开(公告)日：2005-04-26
申请号：US10165087
申请日：2002-06-07
Applicant: Kuo-Chuan Liu
Inventor： Kuo-Chuan Liu
CPC classification number: G02F1/313 , G02F1/0316 , G02F2201/04 , G02F2201/302
Abstract: An electro-optical switch is provided, that includes: a single mode optical waveguide having a thin ferroelectric oxide film for propagating a single mode of light; a coupler adjoining the single mode optical waveguide for coupling a part of the single mode of light from an optical fiber to the single mode optical waveguide; an electrically formed lens in the single mode optical waveguide for collimating the single mode of light from the coupler; and a switching module comprising another electrically formed lens in the single mode optical waveguide, for switching the single mode of light.
Abstract translation: 提供一种电光开关，其包括：具有用于传播单模光的薄铁电氧化膜的单模光波导; 邻接单模光波导的耦合器，将来自光纤的单模光的一部分耦合到单模光波导; 在单模光波导中用于校准来自耦合器的单模光的电成像透镜; 以及包括在单模光波导中的另一电形成透镜的开关模块，用于切换单模光。
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公开(公告)号：US20040120683A1
公开(公告)日：2004-06-24
申请号：US10657743
申请日：2003-09-05
Applicant: Xtellus, Inc.
Inventor： Gil Cohen
IPC: G02B006/00 , G02F001/035
CPC classification number: G02F1/1326 , G02B6/266 , G02F1/0115 , G02F1/134309 , G02F1/1396 , G02F1/2955 , G02F2201/04 , G02F2201/17 , G02F2203/48
Abstract: A fiber optical attenuator utilizing the cut-off phenomenon for single mode propagation of an optical wave down a single mode fiber, comprising an element such as a pixelated liquid crystal element, capable of spatially changing the phase across the cross section of an input optical signal. Such a spatial phase change is equivalent to a change in the mode structure of the propagating wave. The signal propagating in the single mode output fiber is attenuated in accordance with the extent to which higher order modes are mixed into the low order mode originally present. When the mode is completely transformed to higher order modes, the wave is effectively completely blocked from entering the output single-mode fiber, and the attenuation is high. The level of attenuation is determined by the fraction of the wave which is converted to modes other than the lowest order mode, and is thus controllable by the voltage applied to the pixels of the liquid crystal element.
Abstract translation: 一种光纤衰减器，其利用用于单模光纤单模传播的截止现象的光纤衰减器，其包括诸如像素化液晶元件的元件，其能够在输入光信号的横截面上空间改变相位 。 这样的空间相位变化相当于传播波的模式结构的变化。 在单模输出光纤中传播的信号根据最初存在的低阶模式混合到高阶模式的程度而衰减。 当模式完全转换为高阶模式时，波被有效完全阻止进入输出单模光纤，衰减高。 衰减的水平由转换成除了最低阶模式之外的模式的波的分数确定，并且因此可以通过施加到液晶元件的像素的电压来控制。
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18.发明授权Intermodal phase difference controller for beam angle modulation in index guided semiconductor devices 失效用于索引引导半导体器件中束角调制的联合相位差控制器公开(公告)号：US06404793B1
公开(公告)日：2002-06-11
申请号：US09650675
申请日：2000-08-30
Applicant: Scott A. Merritt
Inventor： Scott A. Merritt
IPC: H01S500
CPC classification number: H01S5/026 , G02F1/295 , G02F2201/04 , G02F2201/05 , H01S5/06243 , H01S5/1032 , H01S5/1064 , H01S5/14
Abstract: A novel device and method of beam steering for semiconductor lasers or optical amplifiers is disclosed. The method of the present invention achieves high signal extinction ratios, high speed, low chirp modulation by biasing a multi-lateral mode beam steering section. The device of the present invention comprises an active single vertical and lateral mode optical waveguide, a multi-lateral mode waveguide, and a mode converter. The mode converter efficiently couples output from an active single mode waveguide to two or more modes of a multi-lateral mode waveguide. Two guided modes arrive at a device facet with a particular intermodal phase difference based on initial mode phasing, multi-lateral mode waveguide length and modal dispersion properties, and facet angle. Beam steering is achieved through carrier antiguiding effect by injecting current into the multi-lateral mode waveguide from the mode converter thus changing the intermodal dispersion. Changing the intermodal phase difference changes the direction of beam propagation relative to the device facet, providing enhanced beam steering.
Abstract translation: 公开了一种用于半导体激光器或光放大器的光束转向的新型装置和方法。 本发明的方法通过偏置多侧模式光束转向部分实现了高信号消光比，高速度，低啁啾调制。 本发明的器件包括有源单个垂直和横向模式光波导，多侧模式波导和模式转换器。 模式转换器将来自有源单模波导的输出有效地耦合到多侧波导的两个或多个模式。 基于初始模式定相，多波长波导长度和模态色散特性以及小平面角度，两个引导模式到达具有特定联合相位差的器件面。 通过从模式转换器将电流注入到多侧模式波导中，通过载波防护效应实现波束转向，从而改变多模式色散。 改变联运相位差会相对于装置小面改变光束传播的方向，从而提供增强的光束转向。
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19.发明授权Intermodal phase difference controller for beam angle modulation in index guided semiconductor devices 失效用于索引引导半导体器件中束角调制的联合相位差控制器公开(公告)号：US06169757A
公开(公告)日：2001-01-02
申请号：US08938368
申请日：1997-09-26
Applicant: Scott A. Merritt
Inventor： Scott A. Merritt
IPC: H01S500
CPC classification number: H01S5/026 , G02F1/295 , G02F2201/04 , G02F2201/05 , H01S5/06243 , H01S5/1032 , H01S5/1064 , H01S5/14
Abstract: A novel device and method of beam steering for semiconductor lasers or optical amplifiers is disclosed. The method of the present invention achieves high signal extinction ratios, high speed, low chirp modulation by biasing a multi-lateral mode beam steering section. The device of the present invention comprises an active single vertical and lateral mode optical waveguide, a multi-lateral mode waveguide, and a mode converter. The mode converter efficiently couples output from an active single mode waveguide to two or more modes of a multi-lateral mode waveguide. Two guided modes arrive at a device facet with a particular intermodal phase difference based on initial mode phasing, multi-lateral mode waveguide length and modal dispersion properties, and facet angle. Beam steering is achieved through carrier antiguiding effect by injecting current into the multi-lateral mode waveguide from the mode converter thus changing the intermodal dispersion. Changing the intermodal phase difference changes the direction of beam propagation relative to the device facet, providing enhanced beam steering.
Abstract translation: 公开了一种用于半导体激光器或光放大器的光束转向的新型装置和方法。 本发明的方法通过偏置多侧模式光束转向部分实现了高信号消光比，高速度，低啁啾调制。 本发明的器件包括有源单个垂直和横向模式光波导，多侧模式波导和模式转换器。 模式转换器将来自有源单模波导的输出有效地耦合到多侧波导的两个或多个模式。 基于初始模式定相，多波长波导长度和模态色散特性以及小平面角度，两个引导模式到达具有特定联合相位差的器件面。 通过从模式转换器将电流注入到多侧模式波导中，通过载波防护效应实现波束转向，从而改变多模式色散。 改变联运相位差会相对于装置小面改变光束传播的方向，从而提供增强的光束转向。
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20.发明专利
公开(公告)号：JP2004013155A
公开(公告)日：2004-01-15
申请号：JP2003149351
申请日：2003-05-27
Applicant: Fujitsu Ltd , 富士通株式会社
Inventor： LIU KUO-CHUAN
CPC classification number: G02F1/313 , G02F1/0316 , G02F2201/04 , G02F2201/302
Abstract: PROBLEM TO BE SOLVED: To provide an electro-optical switch which is little involved with the problems related to all the conventional type optical switches, uses a single mode optical signal, and realizes switching for a high data transmission rate. SOLUTION: The single mode optical switch has a thin layer ferroelectric oxidized film, and comprises: a single mode optical waveguide 212 for propagating light of a single mode; a photocoupler 214 disposed adjacent to the single mode optical waveguide 212 and used for coupling part of the single mode light from the optical fiber to the optical waveguide; a lens 220 formed electrically in the single mode optical waveguide 212 and used for collimating the single mode light from the photocoupler 214; and a switching module 224 disposed in the single mode optical waveguide 212 and including another electrically formed lens for switching the single mode light. COPYRIGHT: (C)2004,JPO
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