公开(公告)号：US20240361624A1

公开(公告)日：2024-10-31

申请号：US18768275

申请日：2024-07-10

申请人： Murata Manufacturing Co., Ltd.

发明人： Satoki HAMAMURA ,  Yasuhiro AIDA

IPC分类号： G02F1/035

CPC分类号： G02F1/035 ,  G02F2201/063 ,  G02F2202/06 ,  G02F2202/42

摘要： An optical modulator includes an optical waveguide, a first electrode, a second electrode, and a first low dielectric constant layer. The optical waveguide includes a material having an electro-optic effect. The first electrode includes a semiconductor material and is spaced by a gap from the optical waveguide. The second electrode is positioned to provide a potential difference with the first electrode and apply an electric field to the optical waveguide. The first low dielectric constant layer has a refractive index smaller than that of the optical waveguide, and is provided in the gap between the first electrode and the optical waveguide.

公开(公告)号：US20240248330A1

公开(公告)日：2024-07-25

申请号：US18497521

申请日：2023-10-30

申请人： FUJITSU OPTICAL COMPONENTS LIMITED

发明人： Masaki SUGIYAMA

IPC分类号： G02F1/025 ,  G02F1/03

CPC分类号： G02F1/025 ,  G02F1/0311 ,  G02F1/0316 ,  G02F2201/063

摘要： An optical device includes a rib optical waveguide formed on a substrate, a P doped region formed in one of slab regions of the rib optical waveguide, an N doped region formed in the other one of the slab regions of the rib optical waveguide, a first electrode connected to the P doped region, a second electrode connected to the N doped region, and an optical absorption structure. The optical absorption structure implements optical absorption of signal light passing through the rib optical waveguide according to an electric current that flows between the first electrode and the second electrode, and makes, in the optical absorption, the signal light passing through an optical input portion of the rib optical waveguide lower in optical attenuation rate than the signal light passing through at least part of the rib optical waveguide, the part excluding the optical input portion.

公开(公告)号：US20240004260A1

公开(公告)日：2024-01-04

申请号：US18466685

申请日：2023-09-13

申请人： Cisco Technology, Inc.

发明人： Attila MEKIS ,  Subal SAHNI ,  Yannick DE KONINCK ,  Gianlorenzo MASINI ,  Faezeh GHOLAMI

IPC分类号： G02F1/225 ,  G02F1/025

CPC分类号： G02F1/2257 ,  G02F1/025 ,  G02F2201/12 ,  G02F2201/063 ,  G02F1/212

摘要： Methods and systems for a vertical junction high-speed phase modulator are disclosed and may include a semiconductor device having a semiconductor waveguide including a slab section, a rib section extending above the slab section, and raised ridges extending above the slab section on both sides of the rib section. The semiconductor device has a vertical pn junction with p-doped material and n-doped material arranged vertically with respect to each other in the rib and slab sections. The rib section may be either fully n-doped or p-doped in each cross-section along the semiconductor waveguide. Electrical connection to the p-doped and n-doped material may be enabled by forming contacts on the raised ridges, and electrical connection may be provided to the rib section from one of the contacts via periodically arranged sections of the semiconductor waveguide, where a cross-section of both the rib section and the slab section in the periodically arranged sections may be fully n-doped or fully p-doped.

公开(公告)号：US11860395B2

公开(公告)日：2024-01-02

申请号：US18129656

申请日：2023-03-31

申请人： Meta Platforms Technologies, LLC

发明人： Zhujun Shi ,  Keith Patterson ,  Maxwell Parsons ,  Yongdan Hu ,  Giuseppe Calafiore ,  Zhimin Shi

IPC分类号： F21V8/00 ,  G02F1/1343

CPC分类号： G02B6/0036 ,  G02B6/0078 ,  G02F1/13439 ,  G02F1/134309 ,  G02F2201/063 ,  G02F2201/302

摘要： A self-lit display panel includes a photonic integrated circuit payer including an array of waveguides and an array of out-couplers for out-coupling portions of the illuminating light through pixels of the panel. The self-lit display panel may include a transparent electronic circuitry layer backlit by the photonic integrated circuit layer; the two layers may be on a same substrate or on opposed substrates defining a cell filled with an electro-active material. The configuration allows for chief ray engineering, zonal illuminating, and separate illumination with red, green, and blue illuminating light.

公开(公告)号：US20230400717A1

公开(公告)日：2023-12-14

申请号：US18209415

申请日：2023-06-13

申请人： HyperLight Corporation

发明人： Mian Zhang ,  Kevin Luke ,  Roy Meade ,  Prashanta Kharel ,  Christian Reimer ,  Fan Ye

IPC分类号： G02F1/035

CPC分类号： G02F1/035 ,  G02F2202/20 ,  G02F2201/063

摘要： An electro-optic device is described. The electro-optic device includes at least one optical material having an electro-optic effect. Further, the optical material(s) include lithium. The optical material(s) have a slab and a ridge waveguide. The slab has a top surface. The slab includes free surfaces. Each of the free surfaces is at a nonzero angle from the top surface of the slab and mitigates stress in the slab.

公开(公告)号：US20230384627A1

公开(公告)日：2023-11-30

申请号：US18211170

申请日：2023-06-16

申请人： HyperLight Corporation

发明人： Christian Reimer ,  Mian Zhang

IPC分类号： G02F1/035

CPC分类号： G02F1/0356 ,  G02F2201/063 ,  G02F2202/20 ,  G02F2201/122

摘要： An electro-optic device is described. The electro-optic device includes a substrate, an insulator on the substrate, an optical structure on the insulator and an electrode proximate to at least a portion of the optical structure. The substrate includes a trench region having a plurality of trenches therein. The trench region has an effective microwave index based on a substrate material and the plurality of trenches. The insulator is on the substrate. The optical structure is on the insulator. The optical structure has a thin film electro-optic layer including lithium. The electrode is proximate to a portion of the optical structure.

公开(公告)号：US20230367147A1

公开(公告)日：2023-11-16

申请号：US18245977

申请日：2021-09-24

申请人： SUMITOMO OSAKA CEMENT CO., LTD.

发明人： Norikazu Miyazaki ,  Toru Sugamata

IPC分类号： G02F1/035

CPC分类号： G02F1/0356 ,  G02F2201/063 ,  G02F2202/20

摘要： The optical absorption loss of the optical waveguide and the signal propagation loss of the high-frequency signal electrode are both reduced at a plurality of intersections between the convex optical waveguide and the high-frequency signal electrode, thereby achieving good operating characteristics. An optical waveguide device includes a substrate on which optical waveguides are formed, and an electrode that is formed on the substrate and has intersections crossing over the optical waveguides, in which the optical waveguides are configured by protruding portions extending on the substrate, and an intermediate layer made of a resin is provided at the adjacent intersections along the electrode to fill spaces between the protruding portions along the electrode and covers top of the protruding portions.

公开(公告)号：US20230296927A1

公开(公告)日：2023-09-21

申请号：US18062748

申请日：2022-12-07

申请人： Fujitsu Optical Components Limited

发明人： Masaki Sugiyama

IPC分类号： G02F1/01

CPC分类号： G02F1/0147 ,  G02F1/011 ,  G02F1/0121 ,  G02F2201/063 ,  G02F2201/066 ,  G02F2201/12 ,  G02F2201/42

摘要： 1An optical device includes a substrate, a dielectric substance that is laminated on the substrate, an optical waveguide that is surrounded by the dielectric substance, and a heater electrode that is disposed on the optical waveguide and that is surrounded by the dielectric substance. The optical waveguide is a rib type optical waveguide that includes a slab and a rib on the slab, that is located below the heater electrode, and that has a structure in which a width of the slab is less than or equal to 11 times a width of the rib.

公开(公告)号：US11740492B2

公开(公告)日：2023-08-29

申请号：US17865191

申请日：2022-07-14

申请人： TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.

发明人： Feng-Wei Kuo ,  Chewn-Pu Jou ,  Huan-Neng Chen ,  Lan-Chou Cho

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

CPC分类号： G02F1/0147 ,  G02F1/2257 ,  G02F1/212 ,  G02F2201/063

摘要： A method of forming semiconductor device includes forming an active layer in a substrate including forming components of one or more transistors; forming an MD and gate (MDG) layer over the active layer including forming a gate line; forming a metal-to-S/D (MD) contact structure; and forming a waveguide between the gate line and the MD contact structure; forming a first interconnection layer over the MDG layer including forming a first via contact structure over the gate line; forming a second via contact structure over the MD contact structure; and forming a heater between the first and second via contact structures and over the waveguide.

公开(公告)号：US20230251511A1

公开(公告)日：2023-08-10

申请号：US18102604

申请日：2023-01-27

申请人： HyperLight Corporation

发明人： Prashanta Kharel ,  Mian Zhang ,  Christian Reimer ,  Kevin Luke ,  Lingyan He ,  Jeffrey Cole Holzgrafe

IPC分类号： G02F1/035

CPC分类号： G02F1/0356 ,  G02F2201/063 ,  G02F2202/20 ,  G02F2201/122

摘要： An optical device is described. The optical device includes a waveguide, a first engineered electrode, and a second engineered electrode. The waveguide includes at optical material(s) having an electro-optic effect. The optical material(s) include lithium. A portion of the waveguide has a waveguide width. The first engineered electrode includes a first channel region and first extensions protruding from the first channel region. The first extensions are closer to the portion of the waveguide than the first channel region is. The second engineered electrode includes a second channel region and second extensions protruding from the second channel region. The second extensions are closer to the portion of the waveguide than the second channel region is. A first extension of the first extensions is a distance from a second extension of the second \extensions. The distance is less than the waveguide width.