公开(公告)号：US20240345327A1

公开(公告)日：2024-10-17

申请号：US18738972

申请日：2024-06-10

申请人： O-NET COMMUNICATIONS (USA) INC. ,  O-Net Technologies (Shenzhen) Group Co., Ltd

发明人： Chenjun Fan ,  Zuowen Jiang ,  Wenlu Wang

IPC分类号： G02B6/293 ,  G02B6/27 ,  G02B6/35

CPC分类号： G02B6/29302 ,  G02B6/272 ,  G02B6/274 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/3512 ,  G02B6/3518 ,  G02B6/3526 ,  G02B6/3546 ,  G02B6/356

摘要： This patent document discloses, among others, wavelength-selective switches (WSS) for redirecting optical WDM signals or channels based on a combination of spatially separating light in different optical polarizations in an optical birefringent material and using diffractive optics for separating light at different optical WDM wavelengths into spatially separated optical beam to perform wavelength-selective optical switching in optical WDM applications. Notably, the optics for processing the optical WDM signals in the disclosed optical WSS devices is designed to provide scalable optical WSS devices where different WDM signals share optical components to reduce designed optical components for different WDM signals.

公开(公告)号：US12085760B2

公开(公告)日：2024-09-10

申请号：US17575534

申请日：2022-01-13

申请人： HUAWEI TECHNOLOGIES CO., LTD.

发明人： Shimao Li ,  Yunfei Yan ,  Bing Zou

IPC分类号： G02B6/293 ,  G02B6/27 ,  G02B26/08 ,  H04B10/294 ,  H04B10/564

CPC分类号： G02B6/29391 ,  G02B6/272 ,  G02B6/2773 ,  G02B6/2938 ,  G02B26/0808 ,  H04B10/2941 ,  H04B10/564 ,  Y02D30/70

摘要： One example power equalizer includes an input/output assembly, a multiplexer/demultiplexer, a pre-attenuation component, and a light beam modulator. The multiplexer/demultiplexer demultiplexes a first light beam into a plurality of first sub-wavelength light beams including a particular sub-wavelength light beam, and propagates the plurality of first sub-wavelength light beams to the pre-attenuation component. The pre-attenuation component makes the particular sub-wavelength light beam incident onto the light beam modulator at a preset angle. The light beam modulator performs angular deflection on the plurality of first sub-wavelength light beams to obtain a plurality of second sub-wavelength light beams. The pre-attenuation component then propagates the plurality of second sub-wavelength light beams to the multiplexer/demultiplexer. The multiplexer/demultiplexer multiplexes the plurality of second sub-wavelength light beams into a second light beam.

公开(公告)号：US20240036260A1

公开(公告)日：2024-02-01

申请号：US18262161

申请日：2022-01-19

申请人： O-Net Communications (USA) Inc. ,  O-Net Technologies (Shenzhen) Group Co., Ltd

发明人： Chenjun Fan ,  Wenlu Wang ,  Zuowen Jiang

IPC分类号： G02B6/293 ,  G02B6/27 ,  G02B6/35

CPC分类号： G02B6/29302 ,  G02B6/274 ,  G02B6/3526 ,  G02B6/272 ,  G02B6/3518 ,  G02B6/29311 ,  G02B6/2931

摘要： This patent document discloses, among others, wavelength-selective switches (WSS) for redirecting optical WDM signals or channels based on a combination of spatially separating light in different optical polarizations in an optical birefringent material and using diffractive optics for separating light at different optical WDM wavelengths into spatially separated optical beam to perform wavelength-selective optical switching in optical WDM applications. Notably, the optics for processing the optical WDM signals in the disclosed optical WSS devices is designed to provide scalable optical WSS devices where different WDM signals share optical components to reduce designed optical components for different WDM signals.

公开(公告)号：US20230280535A1

公开(公告)日：2023-09-07

申请号：US18114824

申请日：2023-02-27

申请人： Shanghai University

发明人： Tingyun WANG ,  Chuanlu DENG ,  Yi HUANG ,  Xiaobei ZHANG

IPC分类号： G02B6/27

CPC分类号： G02B6/272 ,  G02B6/2773

摘要： Disclosed is an optical waveguide multi-cascaded coupling mode division multiplexer. The optical waveguide multi-cascaded coupling mode division multiplexer comprises an optical waveguide layer and a substrate layer, wherein the optical waveguide layer comprises a first optical waveguide and a second optical waveguide; the second optical waveguide comprises a transmission optical waveguide and a plurality of coupling structures; each coupling structure comprises a coupling optical waveguide and a connecting optical waveguide; the coupling optical waveguide and the transmission optical waveguide are connected through the connecting optical waveguide; the coupling optical waveguide is parallel to the transmission optical waveguide; and the distance between the coupling optical waveguide and the first optical waveguide is smaller than that between the transmission optical waveguide and the first optical waveguide.

公开(公告)号：US20230213703A1

公开(公告)日：2023-07-06

申请号：US17995618

申请日：2021-04-08

申请人： Karlsruher Institut für Technologie

发明人： Aleksandar Nesic ,  Matthias Blaicher ,  Christian Koos

IPC分类号： G02B6/293 ,  G02B6/27 ,  G02B6/26 ,  G02B6/02

CPC分类号： G02B6/29334 ,  G02B6/272 ,  G02B6/262 ,  G02B6/02376

摘要： The invention relates to an assembly for optical coupling and for mode-selective separation or overlaying of optical fields, to the use thereof and to a method for producing a waveguide-based optical coupling element (10) which is designed for mode-selective separation or overlaying of optical fields at a further optical coupling point (410) of an optical component (400). The assembly comprises at least one waveguide-based optical coupling element (10) having at least three optical coupling points (100, 370, 380), and at least one optical component (400) having at least one further optical coupling point (410), wherein at least one of the optical coupling points 100, 370, 380) is optically connected to the at least one further optical coupling point (410), and wherein the waveguide-based optical coupling element (10) is designed to transmit light highly efficiently and bidirectionally between eigenmodes (120, 260) associated with the first optical coupling point (100) and the second optical coupling point (370), and between eigenmodes (130, 280) associated with the first optical coupling point (100) and the third optical coupling point (380).

公开(公告)号：US20190113684A1

公开(公告)日：2019-04-18

申请号：US16090367

申请日：2017-03-24

申请人： Sumitomo Osaka Cement Co., Ltd

发明人： Hara TOKUTAKA ,  Ryo SHIMIZU

IPC分类号： G02B6/27 ,  G02B6/30 ,  G02B6/32 ,  G02B6/34

CPC分类号： G02B6/272 ,  G02B6/30 ,  G02B6/32 ,  G02B6/34 ,  G02F1/035

摘要： There is provided an integration-type optical modulation device which performs polarization-beam-combining on two linearly polarized light beams respectively output from a plurality of optical modulation elements and outputs the resultant beam so as to seek an improvement and stabilization of optical characteristics, miniaturization, and low cost. The optical modulation device includes: first and second optical modulation elements 102a and 120b that are disposed to output output light beams side by side and respectively output the two output light beams; first and second optical path shift elements 108a and 108b that respectively shift optical paths of the two output light beams from the first optical modulation element and optical paths of the two output light beams from the second optical modulation element in first and second directions; and first and second polarization beam combining elements 110a and 110b that respectively combine the two output light beams after passing through the first and second optical path shift elements into one beam and outputs the one beam, in which the first optical path shift element and the second optical path shift element are integrally formed as one optical component.

公开(公告)号：US10007041B2

公开(公告)日：2018-06-26

申请号：US13747022

申请日：2013-01-22

申请人： Oplink Communications, LLC

发明人： He Dongling ,  Zhao Zexiong ,  Pan Xin ,  He Tanbin

IPC分类号： G02B5/30 ,  G02B27/28 ,  G02B6/27

CPC分类号： G02B5/30 ,  G02B6/272 ,  G02B6/2746 ,  G02B6/2786 ,  G02B27/286

摘要： Methods, systems, and apparatus, for optical depolarization. One optical depolarizer includes a light-combining module comprising a birefringent prism, wherein an optic axis of a first crystal of the birefringent prism forms a 90° angle with an optic axis of a second crystal of the birefringent prism; and a depolarization module, wherein the depolarization module is disposed at a light emitting end of the light-combining module, the depolarization module comprising a light splitting component and a light-combining component disposed at an emitting end of the light-splitting component, and a delayer disposed between the light-splitting component and the light-combining component, wherein the delayer is disposed on an emitting optical path of the light-splitting component.

公开(公告)号：US09910221B2

公开(公告)日：2018-03-06

申请号：US15228575

申请日：2016-08-04

申请人： FUJITSU LIMITED

发明人： Miki Onaka

IPC分类号： G02B6/27 ,  G02B6/10 ,  G02B6/12 ,  G02B6/42 ,  G02B27/28 ,  G02B6/125 ,  G02B6/126 ,  H01S3/067 ,  H01S3/10 ,  H01S3/30 ,  G02B6/293 ,  G02F1/01

CPC分类号： G02B6/2786 ,  G02B6/12004 ,  G02B6/125 ,  G02B6/126 ,  G02B6/272 ,  G02B6/29346 ,  G02B6/29395 ,  G02B6/29397 ,  G02B6/4213 ,  G02B27/283 ,  G02B27/286 ,  G02B2006/12061 ,  G02B2006/12116 ,  G02F1/0147 ,  H01S3/06754 ,  H01S3/10023 ,  H01S3/1003 ,  H01S3/302

摘要： A polarization reducing apparatus includes a separating unit configured to separate input light into components having polarization directions orthogonal to each other; a winding waveguide of silicon formed on a silicon substrate in a winding manner, the winding waveguide transmitting a first component among the components separated by the separating unit; an optical path configured to have a shorter optical path length than the winding waveguide, the optical path transmitting a second component among the components separated by the separating unit; a combining unit configured to combine the first component and the second component; and an output unit configured to output light consisting of the first component and the second component combined by the combining unit.

公开(公告)号：US20180059325A1

公开(公告)日：2018-03-01

申请号：US15671291

申请日：2017-08-08

申请人： Wisconsin Alumni Research Foundation

发明人： Mark Harlan Anderson ,  Matthew Thomas Weathered

IPC分类号： G02B6/287 ,  B29C65/16 ,  G02B6/02 ,  C03B37/15 ,  G02B6/27 ,  C03B37/025

CPC分类号： G02B6/287 ,  B29C65/16 ,  C03B37/0253 ,  C03B37/15 ,  G01K11/32 ,  G02B6/02395 ,  G02B6/272

摘要： An optical fiber sensor extends coaxially with a controllable heater to provide high-resolution axial measurement of thermal properties such as thermal convection of the surrounding, Heat removal by either conduction or convection may be used to deduce material height in a tank, or velocity of flow when coupled with localized heating, or other aspects of the material based on thermal conductivity.

公开(公告)号：US09819420B2

公开(公告)日：2017-11-14

申请号：US15057379

申请日：2016-03-01

申请人： Futurewei Technologies, Inc.

发明人： Yangjing Wen ,  Fei Zhu ,  Yu Sheng Bai

IPC分类号： H04B14/00 ,  H04B10/61 ,  H04B10/532 ,  H04B10/2507 ,  H04B10/50

CPC分类号： H04B10/614 ,  G02B6/272 ,  H04B10/2572 ,  H04B10/5053 ,  H04B10/532 ,  H04B10/6151

摘要： A system comprises: a polarization state aligner (PSA) comprising: an input port; a first polarization beam splitter (PBS) coupled to the input port; a first phase shifter (PS) coupled to the first PBS; a first polarization rotator (PR) coupled to the first PBS; a first beam splitter (BS) coupled to the first PS and the first PR; a first output port coupled to the first BS; and a second output port coupled to the first BS.