公开(公告)号：US20240361662A1

公开(公告)日：2024-10-31

申请号：US18765419

申请日：2024-07-08

申请人： Murata Manufacturing Co., Ltd.

发明人： Satoki HAMAMURA ,  Yasuhiro AIDA

IPC分类号： G02F1/225 ,  G02F1/21

CPC分类号： G02F1/225 ,  G02F1/212 ,  G02F2202/20

摘要： An optical modulator includes an optical waveguide, a first electrode, two second electrodes, and a third electrode that generates a potential difference from the first electrode and the second electrodes. Each second electrode receives a voltage with an identical phase to a voltage applied to the first electrode. In a cross-sectional view perpendicular to a direction in which the optical waveguide extends, the first electrode is on a first side of the optical waveguide in a thickness direction, one second electrode is spaced apart from the first electrode on a first side of the first electrode in a width direction of the optical waveguide, the other second electrode is spaced apart from the first electrode on a second side of the first electrode in the width direction of the optical waveguide, and the third electrode is on a second side of the optical waveguide in the thickness direction.

公开(公告)号：US20240353728A1

公开(公告)日：2024-10-24

申请号：US18412930

申请日：2024-01-15

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Jaegyu PARK ,  Sungil Kim ,  Kisoo Kim

IPC分类号： G02F1/21

CPC分类号： G02F1/212

摘要： Provided is a Mach-Zehnder optical modulator. The optical modulator thereof includes an input waveguide on one side of a substrate, an output waveguide on the other side of the substrate, an optical power splitter between the input waveguide and the output waveguide, an optical power combiner between the optical power splitter and the output waveguide, branch waveguides between the optical power splitter and the optical power combiner, and electrodes provided on the outer periphery of the branch waveguides and between the branch waveguides, and multi-mode interferers provided between the electrodes, and connected in series to the branch waveguides.

公开(公告)号：US12113581B2

公开(公告)日：2024-10-08

申请号：US18102395

申请日：2023-01-27

申请人： Lightmatter, Inc.

发明人： Darius Bunandar ,  Nicholas C. Harris ,  Carl Ramey

IPC分类号： H04B10/00 ,  G02F1/21 ,  H04B10/548 ,  H04B10/70 ,  H04B10/80 ,  H04J14/02 ,  G06T1/20

CPC分类号： H04B10/70 ,  G02F1/21 ,  H04B10/548 ,  H04B10/801 ,  H04J14/02 ,  G02F1/212 ,  G02F2203/48 ,  G02F2203/50 ,  G06T1/20

摘要： Aspects relate to a photonic processing system, a photonic processor, and a method of performing matrix-vector multiplication. An optical encoder may encode an input vector into a first plurality of optical signals. A photonic processor may receive the first plurality of optical signals; perform a plurality of operations on the first plurality of optical signals, the plurality of operations implementing a matrix multiplication of the input vector by a matrix; and output a second plurality of optical signals representing an output vector. An optical receiver may detect the second plurality of optical signals and output an electrical digital representation of the output vector.

公开(公告)号：US20240332273A1

公开(公告)日：2024-10-03

申请号：US18609318

申请日：2024-03-19

申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

发明人： Hiroshi UEMURA ,  Keiji TANAKA ,  Seiji KUMAGAI

IPC分类号： H01L25/16 ,  G02F1/01 ,  G02F1/21 ,  H01L23/00 ,  H01L23/498 ,  H10N19/00

CPC分类号： H01L25/167 ,  G02F1/0102 ,  G02F1/212 ,  H01L23/49838 ,  H01L23/4985 ,  H01L24/16 ,  H01L24/17 ,  H10N19/00 ,  G02F1/218 ,  G02F2202/102 ,  H01L24/49 ,  H01L24/73 ,  H01L2224/17155 ,  H01L2224/48091 ,  H01L2224/48225 ,  H01L2224/48227 ,  H01L2224/49175 ,  H01L2224/73207 ,  H01L2924/1426

摘要： An optical module according to one embodiment includes: a package having a first surface and a second surface; a driver IC mounted on the first surface via a heat sink block; an optical circuit element mounted on the second surface via a temperature adjustment element; and a flexible substrate mounted on the driver IC and the optical circuit element, and electrically connected to the driver IC and the optical circuit element. The flexible substrate includes a main body extending in a first direction and a second direction intersecting the first direction, and a wiring formed on the main body. The main body includes a first end facing an optical circuit element. The wiring includes a first lead portion protruding from the first end to an outside of the main body along the first direction. The first lead portion is connected to the optical circuit element.

公开(公告)号：US12099266B2

公开(公告)日：2024-09-24

申请号：US17620007

申请日：2019-06-24

申请人： Nippon Telegraph and Telephone Corporation

发明人： Kiyofumi Kikuchi ,  Ken Tsuzuki ,  Yusuke Nasu ,  Yuichiro Ikuma ,  Kotaro Takeda ,  Yuriko Kawamura

IPC分类号： G02F1/01 ,  G02F1/025 ,  G02F1/21 ,  G02F1/225

CPC分类号： G02F1/0147 ,  G02F1/025 ,  G02F1/212 ,  G02F1/2257

摘要： An optical circuit of the present disclosure shares at least a part of an electrical path including phase variable means between neighboring optical interference circuits, or configures an electrical path so as to straddle neighboring optical interference circuits, thereby performing electrical or thermal feedback. The optical circuit includes a mechanism using the electrical or thermal feedback for cancelling components of thermal crosstalk from one optical interference circuit to another neighboring optical interference circuit. The optical circuit of the present disclosure has a resistor element that shares electrical paths including respective phase variable means between the neighboring optical interference circuits. The optical circuit changes the phase change amount by the phase variable means in the neighboring optical interference circuit, in such a way as to cancel the thermal crosstalk components by the resistor element.

公开(公告)号：US20240302707A1

公开(公告)日：2024-09-12

申请号：US18597561

申请日：2024-03-06

申请人： Sumitomo Electric Industries, Ltd.

发明人： Kosuke SEKIGUCHI ,  Keiji TANAKA

IPC分类号： G02F1/225 ,  G02F1/21

CPC分类号： G02F1/225 ,  G02F1/212

摘要： An optical semiconductor device includes: an element portion provided on a principal surface of a substrate; first protruding portions provided on the principal surface; a resin body including a top surface and embedding the element portion and the first protruding portions; a wiring provided on the top surface; and a protective film covering the top surface and the wiring. The element portion includes a mesa protruding portion including a first semiconductor layer, and a mesa waveguide. The first protruding portions are separated from each other and each includes the first semiconductor layer. The wiring is provided between the first protruding portions and the element portion and includes a side surface adjacent to the first protruding portions. An angle formed by a first portion covering the side surface of the wiring and a second portion covering the top surface and connected to the first portion is acute.

公开(公告)号：US12078909B2

公开(公告)日：2024-09-03

申请号：US16877113

申请日：2020-05-18

申请人： Intel Corporation

发明人： Jin Hong

IPC分类号： H04B10/548 ,  G02F1/225 ,  G02F1/21

CPC分类号： G02F1/2257 ,  H04B10/548 ,  G02F1/212

摘要： Embodiments may relate to an electronic device that includes a modulator to modulate an in-phase portion of an input signal and a quadrature portion of the input signal. The modulator may include a III-V material on a silicon substrate. In some embodiments, the III-V material may include, for example, indium phosphide (InP). Other embodiments may be described or claimed.

公开(公告)号：US12078908B2

公开(公告)日：2024-09-03

申请号：US17499798

申请日：2021-10-12

申请人： California Institute of Technology

发明人： Seyed Ali Hajimiri

IPC分类号： G02F1/21 ,  H04B10/2575 ,  H04B10/54 ,  H04B10/548

CPC分类号： G02F1/212 ,  H04B10/25752 ,  H04B10/54 ,  H04B10/548

摘要： A system includes, in part, a multitude of RF receivers, a first optical modulator adapted to modulate an optical signal in accordance with a first data received by a first one of RF receivers to generate a first modulated signal, a second optical modulator adapted to modulate the optical signal in accordance with a second data received by a second RF receiver to generate a second modulated signal, and a first optical fiber adapted to carry the first and second modulated signals. The optical modulator may be a photodiode or a Mach-Zehnder modulator.

公开(公告)号：US12076162B2

公开(公告)日：2024-09-03

申请号：US16315390

申请日：2017-07-06

申请人： CHEMIMAGE CORPORATION

发明人： Shona Stewart ,  J. Christopher Post ,  Patrick Treado ,  Jeffrey Cohen

IPC分类号： A61B5/00 ,  A61B5/05 ,  A61B5/1455 ,  G02F1/1335 ,  G02F1/21 ,  G16H50/30

CPC分类号： A61B5/4878 ,  A61B5/05 ,  A61B5/1455 ,  A61B5/4842 ,  A61B5/4869 ,  G02F1/1335 ,  G02F1/216 ,  G16H50/30

摘要： System and method for detecting and monitoring edema in a patient are described. Initially, a patient's tissue is irradiated with light by a light source. A detector collects reflected light from the patient's tissue and generates data associated with the reflected light. A processing device receives the data and reflected light and calculates an intensity of the reflected light. The processing device then determined, based upon the intensity of the reflected light, whether the patient's tissue exhibits any symptoms of edema. Additionally, the processing device can compare a current intensity of the reflected light against historic information to monitor for any changes in a patient's edema level or severity.

公开(公告)号：US12072533B2

公开(公告)日：2024-08-27

申请号：US17592801

申请日：2022-02-04

申请人： FUJITSU OPTICAL COMPONENTS LIMITED

发明人： Kenta Kannari ,  Toshio Ishii

IPC分类号： G02B6/293 ,  G02B6/12 ,  G02F1/21

CPC分类号： G02B6/2935 ,  G02B6/12 ,  G02F1/212 ,  G02B2006/12135 ,  G02B2006/12138

摘要： An optical transmission apparatus includes an emitter that emits an optical signal in accordance with a bias current, and a Mach-Zehnder optical modulator that optically modulates the optical signal in accordance with an electrical signal. The optical modulator includes a detector that detects a temperature inside the optical modulator, and a controller that, when detecting activation of a power supply, controls the temperature inside the optical modulator such that the temperature detected by the detector reaches a target temperature.