公开(公告)号：US20250012976A1

公开(公告)日：2025-01-09

申请号：US18707134

申请日：2022-11-04

Applicant: SAFRAN ELECTRICAL & POWER ,  CAILABS

Inventor： Sébastien LE GALL ,  Christophe BERTEROTTIERE ,  Bertrand DENOLLE

IPC: G02B6/28 ,  H04B10/2581 ,  H04J14/04

Abstract: A device for connection to an on-board multiplexed network of communication by multi-mode optical fibers for an aircraft, the device comprising a first optical component for modifying the spatial profile of a light beam, comprising a multi-mode optical input terminal configured to be connected to a first multi-mode optical fiber and single-mode optical output terminals, and a second optical component for modifying the spatial profile of a light beam, comprising single-mode optical input terminals and a multi-mode optical output terminal configured to be connected to a second multi-mode optical fiber. It further comprises an optical harness for switching and reassigning a transmission channel including single-mode optical inputs coupled to the single-mode optical output terminals of the first component, single-mode optical outputs coupled to the single-mode optical input terminals of the second optical component, and single-mode waveguides.

公开(公告)号：US12140761B2

公开(公告)日：2024-11-12

申请号：US17746672

申请日：2022-05-17

Applicant: Meta Platforms Technologies, LLC

Inventor： Giuseppe Calafiore ,  Alexander Koshelev

IPC: G02B27/01 ,  F21V8/00 ,  G02B6/12 ,  G02B6/28 ,  G02B6/35 ,  G02B26/10 ,  G02B27/10

Abstract: A device for providing a 1D line of an image is disclosed. The device includes a wavelength-tunable light source for providing image light having the angular distribution encoded in optical spectrum. The device further includes a thin slab waveguide having an out-coupler in form of a diffraction grating for out-coupling the image light at an angle dependent on wavelength. The image may be formed by scanning a collimated beam propagating in the slab waveguide when using tunable monochromatic light sources, or by forming the 1D singular distribution of brightness at a same time when using a tunable-spectrum light sources. The device may be used in a near-eye display for forming a 2D image in angular domain.

公开(公告)号：US20240364425A1

公开(公告)日：2024-10-31

申请号：US18632541

申请日：2024-04-11

Applicant: Nokia Solutions and Networks Oy

Inventor： Jochen MAES

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

CPC classification number: H04B10/278 ,  G02B6/28 ,  G02B6/43 ,  H04Q11/0003

Abstract: 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

Applicant: Honeywell International Inc.

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

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

CPC classification number: G02B6/125 ,  G02B6/1228 ,  G02B6/124 ,  G02B6/2821 ,  G02B2006/12107 ,  G02B2006/12147

Abstract: 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

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

Inventor： Abdelfatah BENABID ,  Benoît DEBORD ,  Benoît BEAUDOU ,  Gilles FEUGNET ,  Bertrand MORBIEU

IPC: G02B6/28 ,  G02B6/02

CPC classification number: G02B6/2821 ,  G02B6/02328

Abstract: 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

Applicant: Nielson Scientific, LLC

Inventor： Gregory Nolan Nielson

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

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

Abstract: 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

Applicant: Fujitsu Optical Components Limited

Inventor： Akira Oka

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

CPC classification number: H04B10/40 ,  G02B6/2852 ,  H04B10/25891

Abstract: 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

Applicant: Stichting VU

Inventor： Fabio Feroldi ,  Johannes Fitzgerald De Boer

IPC: A61B1/00 ,  A61B5/00 ,  G02B6/28

CPC classification number: A61B1/00167 ,  A61B1/0017 ,  A61B5/0062 ,  A61B5/0084 ,  G02B6/2821

Abstract: 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

Applicant: Leadoptik Inc.

Inventor： Mohammadreza Khorasaninejad ,  Huiqin Zhang ,  Jiang You

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

CPC classification number: G02B27/0905 ,  G02B5/3083 ,  G02B27/0944

Abstract: 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

Applicant: Fujikura Ltd.

Inventor： Shinichi Sakamoto ,  Wataru Kiyoyama

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

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

Abstract: 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.