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

IPC: G02B6/42 ,  G02F1/035 ,  G02F1/21

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.

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

IPC: G02F1/03 ,  G02F1/313 ,  G02B6/26

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。

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。

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。

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。

公开(公告)号：US20180307118A1

公开(公告)日：2018-10-25

申请号：US15923571

申请日：2018-03-16

Applicant: Commissariat a l'energie atomique et aux energies alternatives

Inventor： Corrado SCIANCALEPORE ,  Marco CASALE ,  Houssein EL DIRANI

IPC: G02F1/39

CPC classification number: G02F1/395 ,  G02F1/3536 ,  G02F1/365 ,  G02F2001/392 ,  G02F2201/04 ,  G02F2201/58 ,  G02F2202/101 ,  G02F2202/102 ,  G02F2203/15 ,  G02F2203/17 ,  G02F2203/56

Abstract: The invention relates to an optoelectronic device for generating a frequency comb comprising a laser source (2), a ring microresonator (3) comprising a resonant ring (20) made of a third order optically non-linear material with abnormal dispersion regime. It also comprises a spectral tuning device comprising a junction guide (30) coupled to the resonant ring, electrical biasing means (40) adapted to apply an electrical voltage to the junction, and a control unit (42) adapted to modify the value of the electrical voltage until at least one dissipative temporal soliton is formed in the resonant ring.

公开(公告)号：US20140254998A1

公开(公告)日：2014-09-11

申请号：US14198261

申请日：2014-03-05

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Akira FURUYA ,  Takamitsu KITAMURA ,  Hideki YAGI ,  Naoya KONO

IPC: G02B6/42 ,  G02B6/136

CPC classification number: G02B6/305 ,  G02B6/1228 ,  G02B6/136 ,  G02B2006/12078 ,  G02F1/01708 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2001/217 ,  G02F2201/04 ,  G02F2201/06 ,  G02F2201/063 ,  G02F2201/12 ,  G02F2202/101 ,  G02F2202/102 ,  G02F2202/108

Abstract: A semiconductor optical waveguide device includes a substrate having a first area and a second area, and first, second, and semiconductor mesas on the substrate. The first semiconductor mesa includes a cladding layer and a first mesa portion on the second area, the first mesa portion including first and second portions. The second semiconductor mesa includes an intermediate layer, a first core layer, and first and second mesa portions on the first and second area, respectively. The third semiconductor mesa includes a second core layer, and first and second mesa portions having a greater width than that of the second semiconductor mesa. The first portion of the first semiconductor mesa has a substantially the same width as the second mesa portion of the second semiconductor mesa. The first core layer is optically coupled to the second core layer through the intermediate layer disposed between the first and second core layers.

Abstract translation: 半导体光波导器件包括具有第一区域和第二区域的衬底以及衬底上的第一，第二和第二半导体台面。 第一半导体台面包括在第二区域上的包覆层和第一台面部分，第一台面部分包括第一和第二部分。 第二半导体台面分别包括中间层，第一芯层以及第一和第二区域上的第一和第二台面部分。 第三半导体台面包括第二芯层，第一和第二台面部分的宽度大于第二半导体台面的宽度。 第一半导体台面的第一部分具有与第二半导体台面的第二台面部分基本相同的宽度。 第一芯层通过设置在第一和第二芯层之间的中间层光耦合到第二芯层。

公开(公告)号：US20140043674A1

公开(公告)日：2014-02-13

申请号：US14018225

申请日：2013-09-04

Applicant: Furukawa Electric Co., Ltd.

Inventor： Shigehiro TAKASAKA ,  Yu Mimura

IPC: H01S3/10

CPC classification number: H01S3/10023 ,  G02F1/395 ,  G02F2201/04 ,  G02F2201/307 ,  G02F2203/50 ,  G02F2203/585 ,  H01S3/06725 ,  H01S3/06754 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/294

Abstract: An optical amplifier includes an optical gain fiber into which signal light and pump light are input and at least one relative phase shifter is inserted. Preferably, the relative phase shifter is inserted so that the relative phase in the lengthwise direction of the optical gain fiber falls within a predetermined range containing 0.5 Π. Preferably, the optical gain fiber is a highly non-linear optical fiber having a non-linearity constant of at least 10/W/km. Preferably, the dispersion of the optical gain fiber is within the range from −1 ps/nm/km to 1 ps/nm/km in an amplification band. Preferably, the absolute value of the dispersion slope of the optical gain fiber at a zero dispersion wavelength is no greater than 0.05 ps/nm2/km.

Abstract translation: 光放大器包括一个光增益光纤，信号光和泵浦光被输入到该增益光纤中，至少有一个相对移相器被插入。 优选地，插入相对移相器，使得光增益光纤的长度方向上的相对相位落在包含0.5Pi的预定范围内。 优选地，光增益光纤是具有至少10 / W / km的非线性常数的高度非线性的光纤。 优选地，光增益光纤的色散在放大频带内在-1ps / nm / km至1ps / nm / km的范围内。 优选地，在零色散波长处的光学增益光纤的色散斜率的绝对值不大于0.05ps / nm2 / km。

公开(公告)号：US08649403B2

公开(公告)日：2014-02-11

申请号：US13606235

申请日：2012-09-07

Applicant: Yasuhiro Oba ,  Michihiro Nakai

Inventor： Yasuhiro Oba ,  Michihiro Nakai

IPC: H01S3/30

CPC classification number: H01S3/06754 ,  G02F1/33 ,  G02F1/3526 ,  G02F1/37 ,  G02F2201/04 ,  G02F2201/307 ,  H01S3/0078 ,  H01S3/0092 ,  H01S3/0675 ,  H01S3/094076 ,  H01S3/10015 ,  H01S3/10046 ,  H01S3/10069 ,  H01S3/10092 ,  H01S3/1022 ,  H01S3/1068 ,  H01S3/1301 ,  H01S3/2375 ,  H01S3/302

Abstract: When an output instruction is input to a control unit, the control unit controls a seed laser light source and a pumping light source to be either in a pre-pumped state or in an output state. In the pre-pumped state, the pumping light source outputs, for a predetermined period, pumping light with an intensity determined based on the duration of the period of time from when the output state prior to the input of the output instruction to the control unit comes to an end till when the output instruction is input to the control unit. In the output state, to cause the output unit to output laser light, the seed laser light source outputs laser light, and the pumping light source outputs pumping light.

Abstract translation: 当将输出指令输入到控制单元时，控制单元控制种子激光光源和泵浦光源处于预抽状态或输出状态。 在预泵浦状态下，泵浦光源在预定时间内输出具有基于从输入指令输​​入到控制单元之前的输出状态的时间段的持续时间确定的强度的泵浦光 结束，直到输出指令输入到控制单元。 在输出状态下，为了使输出单元输出激光，种子激光光源输出激光，泵浦光源输出泵浦光。

公开(公告)号：US20130034113A1

公开(公告)日：2013-02-07

申请号：US13606235

申请日：2012-09-07

Applicant: Yasuhiro Oba ,  Michihiro Nakai

Inventor： Yasuhiro Oba ,  Michihiro Nakai

IPC: H01S3/067

CPC classification number: H01S3/06754 ,  G02F1/33 ,  G02F1/3526 ,  G02F1/37 ,  G02F2201/04 ,  G02F2201/307 ,  H01S3/0078 ,  H01S3/0092 ,  H01S3/0675 ,  H01S3/094076 ,  H01S3/10015 ,  H01S3/10046 ,  H01S3/10069 ,  H01S3/10092 ,  H01S3/1022 ,  H01S3/1068 ,  H01S3/1301 ,  H01S3/2375 ,  H01S3/302

Abstract: When an output instruction is input to a control unit, the control unit controls a seed laser light source and a pumping light source to be either in a pre-pumped state or in an output state. In the pre-pumped state, the pumping light source outputs, for a predetermined period, pumping light with an intensity determined based on the duration of the period of time from when the output state prior to the input of the output instruction to the control unit comes to an end till when the output instruction is input to the control unit. In the output state, to cause the output unit to output laser light, the seed laser light source outputs laser light, and the pumping light source outputs pumping light.

Abstract translation: 当将输出指令输入到控制单元时，控制单元控制种子激光光源和泵浦光源处于预抽状态或输出状态。 在预泵浦状态下，泵浦光源在预定时间内输出具有基于从输入指令输​​入到控制单元之前的输出状态的时间段的持续时间确定的强度的泵浦光 结束，直到输出指令输入到控制单元。 在输出状态下，为了使输出单元输出激光，种子激光光源输出激光，泵浦光源输出泵浦光。