公开(公告)号：US20240364425A1

公开(公告)日：2024-10-31

申请号：US18632541

申请日：2024-04-11

申请人： Nokia Solutions and Networks Oy

发明人： Jochen MAES

IPC分类号： H04B10/278 ,  G02B6/28 ,  G02B6/43 ,  H04Q11/00

CPC分类号： H04B10/278 ,  G02B6/28 ,  G02B6/43 ,  H04Q11/0003

摘要： The network of connected apparatuses includes a first apparatus, a second apparatus and a third apparatus connected in series to establish a fiber optic bus. The second apparatus includes a first port connected to the first apparatus, a second port connected to a node and a third port connected to the third apparatus. The second apparatus further includes a passive device configured to divide an input fiber optic signal received at the second port into output signals to be transmitted from the first and third port.

公开(公告)号：US12111496B2

公开(公告)日：2024-10-08

申请号：US17843485

申请日：2022-06-17

申请人： Honeywell International Inc.

发明人： Matthew Wade Puckett ,  Chad Hoyt ,  Karl D. Nelson ,  Jianfeng Wu

IPC分类号： G02B6/125 ,  G02B6/12 ,  G02B6/122 ,  G02B6/124 ,  G02B6/28

CPC分类号： G02B6/125 ,  G02B6/1228 ,  G02B6/124 ,  G02B6/2821 ,  G02B2006/12107 ,  G02B2006/12147

摘要： Techniques are provided for implementing a low insertion loss optical coupler utilizing a low confinement planar optical waveguide and two high confinement planar optical waveguides. The optical coupler efficiently couples an optical signal with a cross section greater than either high confinement planar optical waveguide.

公开(公告)号：US20240319445A1

公开(公告)日：2024-09-26

申请号：US18577211

申请日：2022-07-07

申请人： THALES ,  UNIVERSITE DE LIMOGES ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  GLOPHOTONICS

发明人： Abdelfatah BENABID ,  Benoît DEBORD ,  Benoît BEAUDOU ,  Gilles FEUGNET ,  Bertrand MORBIEU

IPC分类号： G02B6/28 ,  G02B6/02

CPC分类号： G02B6/2821 ,  G02B6/02328

摘要： A device for coupling optical fibers, includes a first coupling-inhibited hollow-core optical fiber comprising a first microstructured cladding comprising a plurality of first confining tubular features distributed in a ring and encircling, at least partially, a first core so as to confine at least radiation at a wavelength λop to the first core, a second coupling-inhibited hollow-core optical fiber comprising a second microstructured cladding comprising a plurality of second confining tubular features distributed in a ring and encircling, at least partially, a second core so as to confine the light radiation to the second core, a coupling element arranged between the first and second cores, the coupling element comprising at least one coupling tubular feature comprised at least partially in the first microstructured cladding and/or the second microstructured cladding and having a wall thickness tcp called the coupling thickness and a material index ncp called the coupling index, an arrangement of the coupling element, the coupling thickness tcp and the coupling index ncp being configured so as to create a leakage channel at the wavelength λop allowing the radiation guided by the first optical fiber to be coupled to the second optical fiber and/or the radiation guided by the second optical fiber to be coupled to the first optical fiber.

公开(公告)号：US12080651B2

公开(公告)日：2024-09-03

申请号：US17040430

申请日：2019-03-27

申请人： Nielson Scientific, LLC

发明人： Gregory Nolan Nielson

IPC分类号： H01L23/538 ,  B81B7/00 ,  B81C1/00 ,  G02B6/12 ,  G02B6/28 ,  H01L27/06

CPC分类号： H01L23/5384 ,  B81B7/007 ,  B81B7/0074 ,  B81C1/00119 ,  G02B6/12002 ,  G02B6/28 ,  H01L27/0688 ,  B81B2203/0338

摘要： Various three-dimensional devices that can be formed within the bulk of a semiconductor by photo-controlled selective etching are described herein. With more particularity, semiconductor devices that incorporate three-dimensional electrical vias, waveguides, or fluidic channels that are disposed within a semiconductor are described herein. In an exemplary embodiment, a three-dimensional interposer chip includes an electrical via, a waveguide, and a fluidic channel, wherein the via, the waveguide, and the fluidic channel are disposed within the body of a semiconductor element rather than being deposited on a surface. The three-dimensional interposer is usable to make electrical, optical, or fluidic connections between two or more devices.

公开(公告)号：US12021562B2

公开(公告)日：2024-06-25

申请号：US17839549

申请日：2022-06-14

申请人： Fujitsu Optical Components Limited

发明人： Akira Oka

IPC分类号： H04B10/40 ,  G02B6/28 ,  H04B10/25

CPC分类号： H04B10/40 ,  G02B6/2852 ,  H04B10/25891

摘要： A tap coupler includes a mode generation unit, a separation unit, and an output unit. The mode generation unit generates, in accordance with a discontinuous portion disposed on a travelling path of signal light that is propagating, a first mode of the signal light and a second mode that is different from the first mode. The separation unit separates, when the first mode and the second mode are input from the mode generation unit, the first mode and the second mode. The output unit outputs branch light in accordance with a transition of the second mode received from the separation unit.

公开(公告)号：US11963663B2

公开(公告)日：2024-04-23

申请号：US17042488

申请日：2019-03-28

申请人： Stichting VU

发明人： Fabio Feroldi ,  Johannes Fitzgerald De Boer

IPC分类号： A61B1/00 ,  A61B5/00 ,  G02B6/28

CPC分类号： A61B1/00167 ,  A61B1/0017 ,  A61B5/0062 ,  A61B5/0084 ,  G02B6/2821

摘要： A fibre endoscope system (100) comprises a catheter (10) with a probe head (10a) for entering into a body cavity (C) adjacent or near a sample region (S). A source fiber (11) has a first fiber ending (11a) and a signal fiber (12) has a second fiber ending (12a) both remote from the probe head (10a) but separate. A sampling fiber (13) has a third fiber ending (13a) disposed at the probe head (10a). A fiber coupler (15) is configured to optically couple at least the source fiber (11) to the sampling fiber (13), and the sampling fiber (13) to the signal fiber (12). A sampling fiber length (L13) of the sampling fiber (13) between a fiber coupler (15) and the third fiber ending (13a) is shorter than a source fiber length (L11) of the source fiber (11) between the fiber coupler (15) and the first fiber ending (11a).

公开(公告)号：US11953698B1

公开(公告)日：2024-04-09

申请号：US18484367

申请日：2023-10-10

申请人： Leadoptik Inc.

发明人： Mohammadreza Khorasaninejad ,  Huiqin Zhang ,  Jiang You

IPC分类号： G02B6/28 ,  G02B5/30 ,  G02B6/24 ,  G02B27/09

CPC分类号： G02B27/0905 ,  G02B5/3083 ,  G02B27/0944

摘要： A phase correction concept is introduced to improve the performance of a spatially multiplexed optic. In a specific example, the optic is a diffractive lens. A phase offset is added to extend the depth of field of the diffractive lens and increase its focusing intensity. This can result in increased signal-to-noise ratio. These diffractive lenses may be used for imaging, focusing, and/or delivering light to an area of interest. They may be used to realize miniaturized medical imaging based on different imaging modalities such as optical coherence tomography, Raman spectroscopy, and fluorescence microscopy. They may also be used for different purposes and applications, for example laser ablation.

公开(公告)号：US11940321B2

公开(公告)日：2024-03-26

申请号：US17254485

申请日：2019-06-21

申请人： Fujikura Ltd.

发明人： Shinichi Sakamoto ,  Wataru Kiyoyama

IPC分类号： G01J1/42 ,  G01J1/04 ,  G02B6/42 ,  H01S3/13 ,  H01S3/23 ,  G02B6/28 ,  H01S3/00

CPC分类号： G01J1/4228 ,  G01J1/0425 ,  G02B6/4286 ,  H01S3/1306 ,  H01S3/2383 ,  G02B6/2808 ,  G02B6/429 ,  H01S3/0014 ,  H01S3/1305

摘要： A photodetection device including: first optical fibers; a second optical fiber; an optical combiner having: an end face connected to an end face of each of the first optical fibers; and another end face connected to an end face of the second optical fiber; a first photodetector that detects an intensity of light propagating through at least one of the first optical fibers; a second photodetector that detects Rayleigh scattering of light propagating through the second optical fiber; and a calculator that calculates the intensity of light propagating in a predetermined direction through the first optical fibers or the second optical fiber, from a result of detection by the first photodetector and a result of detection by the second photodetector.

公开(公告)号：US20240085631A1

公开(公告)日：2024-03-14

申请号：US18370785

申请日：2023-09-20

申请人： PsiQuantum, Corp. ,  The University of Bristol

发明人： Damien Bonneau ,  Mark Thompson

IPC分类号： G02B6/28 ,  G02B6/26 ,  H01P9/00

CPC分类号： G02B6/2861 ,  G02B6/262 ,  H01P9/00

摘要： An optical device includes a first multi-mode waveguide, a first optical coupler coupled to the first multi-mode waveguide, the first coupler being tapered and curved, and a first single-mode waveguide having a first end coupled to the first optical coupler. The optical device maybe used in an optical delay device. A method of propagating light in a first multi-mode waveguide toward a first optical coupler, propagating the light in the first optical coupler toward a first single-mode waveguide, the first optical coupler being tapered and curved, and propagating the light along the first single-mode waveguide is also disclosed.

公开(公告)号：US11886024B2

公开(公告)日：2024-01-30

申请号：US16220162

申请日：2018-12-14

申请人： Weatherford Technology Holdings, LLC

发明人： Thomas W. F. Engel

IPC分类号： G02B6/42 ,  G02B6/28 ,  G02B6/38

CPC分类号： G02B6/4248 ,  G02B6/2856 ,  G02B6/3816 ,  G02B6/3851 ,  G02B6/3855 ,  G02B6/3885 ,  Y10T156/1052 ,  Y10T156/1062

摘要： Methods and apparatus are provided for a monolithic multi-optical-waveguide penetrator or connector. One example apparatus generally includes a plurality of large diameter optical waveguides, each having a core and a cladding, and a body having a plurality of bores with the optical waveguides disposed therein, wherein at least a portion of the cladding of each of the optical waveguides is fused with the body, such that the apparatus is a monolithic structure. Such an apparatus provides for a cost- and space-efficient technique for feedthrough of multiple optical waveguides. Also, the body may have a large outer diameter which can be shaped into features of interest, such as connection alignment or feedthrough sealing features.