公开(公告)号：US12226188B2

公开(公告)日：2025-02-18

申请号：US18118013

申请日：2023-03-06

Applicant: Omni Medsci, Inc.

Inventor： Mohammed N. Islam

IPC: A61B5/00 ,  A61B5/145 ,  A61B5/1455 ,  A61C19/04 ,  G01J3/02 ,  G01J3/10 ,  G01J3/14 ,  G01J3/28 ,  G01J3/42 ,  G01J3/453 ,  G01N21/35 ,  G01N21/3504 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/88 ,  G01N33/02 ,  G01N33/15 ,  G01N33/44 ,  G01N33/49 ,  G16H40/67 ,  G16Z99/00 ,  A61C1/00 ,  G01J3/12 ,  G01J3/18 ,  G01M3/38 ,  G01N21/85 ,  G01N21/95 ,  H01S3/00 ,  H01S3/067 ,  H01S3/30

Abstract: A measurement system comprising one or more semiconductor diodes configured to penetrate tissue comprising skin. The detection system comprising a camera, which may also include a direct or indirect time-of-flight sensor. The detection system synchronized to the pulsing of the semiconductor diodes, and the camera further coupled to a processor. The detection system non-invasively measuring blood within the skin, measuring hemoglobin absorption between 700 to 1300 nm, and the processor deriving physiological parameters and comparing properties between different spatial locations and variation over time. The semiconductor diodes may comprise vertical cavity surface emitting lasers, and the detection system may comprise single photon avalanche photodiodes. The measurement system may be used to observe eye parameters and differential blood flow. The system may be used with photo-bio-modulation therapy, or it may be used in advanced driver monitoring systems for multiple functions including head pose, eye tracking, facial authentication, and smart restraint control systems.

公开(公告)号：US20250049326A1

公开(公告)日：2025-02-13

申请号：US18927698

申请日：2024-10-25

Applicant: OMNI MEDSCI, INC.

Inventor： Mohammed N. ISLAM

IPC: A61B5/00 ,  A61B5/145 ,  A61B5/1455 ,  A61C1/00 ,  A61C19/04 ,  G01J3/02 ,  G01J3/10 ,  G01J3/12 ,  G01J3/14 ,  G01J3/18 ,  G01J3/28 ,  G01J3/42 ,  G01J3/453 ,  G01M3/38 ,  G01N21/35 ,  G01N21/3504 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/85 ,  G01N21/88 ,  G01N21/95 ,  G01N33/02 ,  G01N33/15 ,  G01N33/44 ,  G01N33/49 ,  G16H40/67 ,  G16Z99/00 ,  H01S3/00 ,  H01S3/067 ,  H01S3/30

Abstract: A wearable device to measure a user's physiological parameters comprising one or more biosensors, as well as a light source comprising light emitting diodes, lenses for directing light towards tissue of the user comprising blood vessels, and a detection system receiving reflected tissue light. The physiological parameters, for example hypertension, are measured with a differential measurement. For example, the physiological parameters may be associated with pulse rate and blood flow. The output signal is associated with the physiological parameters, and artificial intelligence may be used in making decisions regarding the output signal. Signal-to-noise ratio of the output signal may be improved by synchronizing the detection system to the light source, increasing light intensity, and detecting a change. The wearable device is configured to determine that is being worn by the user and may be configured to communicate with a smartphone or tablet.

公开(公告)号：US12218705B1

公开(公告)日：2025-02-04

申请号：US18764093

申请日：2024-07-03

Applicant: Joseph Gerard LaChapelle

Inventor： Joseph Gerard LaChapelle

IPC: H04B10/2537 ,  H01S3/067 ,  H01S3/30 ,  H04B10/50

Abstract: Disclosed herein are methods, devices, apparatuses, and non-transitory computer readable media for signal communication via hollow fiber using stimulated Raman scattering (HC-SRS). Such use of HC-SRS can cause amplification of the signal as it is transmitted through the hollow fiber. Such use of HC-SRS may have (A) reduced signal loss during transmission, (B) reduced latency time as compared to optical signal propagating through a solid core optical fiber, (C) increase a distance between repeaters required for signal transmission, or (D) any combination of (A) (B) and (C); with any of (A) and (C) being compared to any of the currently used signal transmission methodologies disclosed herein.

公开(公告)号：US20250009232A1

公开(公告)日：2025-01-09

申请号：US18891125

申请日：2024-09-20

Applicant: Omni Medsci, Inc.

Inventor： Mohammed N. ISLAM

IPC: A61B5/00 ,  A61B5/145 ,  A61B5/1455 ,  A61C1/00 ,  A61C19/04 ,  G01J3/02 ,  G01J3/10 ,  G01J3/12 ,  G01J3/14 ,  G01J3/18 ,  G01J3/28 ,  G01J3/42 ,  G01J3/453 ,  G01M3/38 ,  G01N21/35 ,  G01N21/3504 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/85 ,  G01N21/88 ,  G01N21/95 ,  G01N33/02 ,  G01N33/15 ,  G01N33/44 ,  G01N33/49 ,  G16H40/67 ,  G16Z99/00 ,  H01S3/00 ,  H01S3/067 ,  H01S3/30

Abstract: A remote sensing system comprising laser diodes with Bragg reflectors generating pulsed light that is directed to an object. A detection system receiving some of the light reflected from the object and coupled to a processor configured to measure a time-of-flight. The pulsing may have a phase associated with the modulation frequency, or nanosecond pulses may be used for the measurement. The remote sensing system including the processor is further configured to provide time and position data for a user. The object may comprise the user capable of laying on a supporting surface. The remote sensing system may also be coupled to a camera system to capture images, which may be combined with the time-of-flight measurement. Artificial intelligence may be used to make decisions associated with the images or the time-of-flight measurement. The processor may be coupled to non-transitory computer readable medium and may communicate data to a cloud server.

公开(公告)号：US20240398237A1

公开(公告)日：2024-12-05

申请号：US18802879

申请日：2024-08-13

Applicant: Omni Medsci, Inc.

Inventor： Mohammed N. ISLAM

IPC: A61B5/00 ,  A61B5/145 ,  A61B5/1455 ,  A61C1/00 ,  A61C19/04 ,  G01J3/02 ,  G01J3/10 ,  G01J3/12 ,  G01J3/14 ,  G01J3/18 ,  G01J3/28 ,  G01J3/42 ,  G01J3/453 ,  G01M3/38 ,  G01N21/35 ,  G01N21/3504 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/85 ,  G01N21/88 ,  G01N21/95 ,  G01N33/02 ,  G01N33/15 ,  G01N33/44 ,  G01N33/49 ,  G16H40/67 ,  G16Z99/00 ,  H01S3/00 ,  H01S3/067 ,  H01S3/30

Abstract: A measurement system with active illumination using pulsed semiconductor diodes and a detection system comprising a camera imager with lenses and spectral filters that is synchronized to the pulsed diodes. The light generated by the diodes may comprise visible or near-infrared wavelengths. The measurement system may also comprise a time-of-flight sensor or a beam splitter to separate the diode light into a plurality of spatially separated lights. The detection system may be configured to receive light reflected from tissue comprising skin and may be configured to perform a differential measurement between a hand and another region of tissue. The measurement system including a processor may be configured to identify veins in the hand or measure oxygen level in blood. The system may be used to identify an object or to measure physiological parameters. The system may also be coupled to a cloud service and use artificial intelligence in making decisions.

公开(公告)号：US12126134B2

公开(公告)日：2024-10-22

申请号：US17396268

申请日：2021-08-06

Applicant: HUAWEI TECHNOLOGIES CANADA CO., LTD. ,  Université Laval

Inventor： Lixian Wang ,  Charles Matte-Breton ,  Sophie La Rochelle ,  Frédéric Maes ,  Zhiping Jiang

IPC: H01S3/30 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/17

CPC classification number: H01S3/09415 ,  H01S3/06716 ,  H01S3/0672 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/094069 ,  H01S3/1608 ,  H01S3/1618 ,  H01S3/06729 ,  H01S3/06733 ,  H01S3/06766 ,  H01S3/176 ,  H01S2301/02

Abstract: An optical fiber configured to improve the pump conversion efficiency of an L-band fiber amplifier which uses the multimode pump source. By directly absorbing multimode light including 915 nm, an active fiber core region co-doped with both erbium and ytterbium can provide gain to the L-band signals via stimulated emission. The unwanted C-band amplified spontaneous emission (ASE) light generate from this active fiber core region can be absorbed by another active fiber core region doped with erbium, then provides additional gain to the L-band signals. Active regions and cladding can be configured to match a given spatial mode of the optical signal. Signal-pump combiners with end-coupling or side coupling can be used.

公开(公告)号：US12068571B2

公开(公告)日：2024-08-20

申请号：US18135490

申请日：2023-04-17

Applicant: CYNOSURE, LLC

Inventor： Rafael Armando Sierra ,  Mirko Georgiev Mirkov

IPC: H01S3/30 ,  H01S3/08 ,  H01S3/094 ,  H01S3/102 ,  H01S3/1106 ,  H01S3/1109 ,  H01S3/16 ,  A61B18/00 ,  H01S3/107 ,  H01S3/11

CPC classification number: H01S3/094076 ,  H01S3/08054 ,  H01S3/1024 ,  H01S3/1106 ,  H01S3/1109 ,  H01S3/1611 ,  H01S3/1673 ,  A61B2018/00458 ,  F04C2270/0421 ,  H01S3/094038 ,  H01S3/107 ,  H01S3/1075 ,  H01S3/1103 ,  H01S3/1618 ,  H01S3/1623 ,  H01S3/1643

Abstract: Apparatuses and methods are disclosed for applying laser energy having desired pulse characteristics, including a sufficiently short duration and/or a sufficiently high energy for the photomechanical treatment of skin pigmentations and pigmented lesions, both naturally-occurring (e.g., birthmarks), as well as artificial (e.g., tattoos). The laser energy may be generated with an apparatus having a resonator with the capability of switching between a modelocked pulse operating mode and an amplification operating mode. The operating modes are carried out through the application of a time-dependent bias voltage, having waveforms as described herein, to an electro-optical device positioned along the optical axis of the resonator.

公开(公告)号：US12034269B2

公开(公告)日：2024-07-09

申请号：US17258408

申请日：2019-07-05

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Takayuki Mizuno ,  Koki Shibahara ,  Akira Isoda ,  Takayuki Kobayashi ,  Yutaka Miyamoto

IPC: H01S3/067 ,  H01S3/094 ,  H01S3/10 ,  H01S3/30 ,  H04B10/2581 ,  H04B10/291 ,  H04B10/293 ,  H04J14/04

CPC classification number: H01S3/30 ,  H01S3/06737 ,  H01S3/06779 ,  H01S3/094007 ,  H01S3/10015 ,  H04B10/2581 ,  H04B10/2916 ,  H04B10/293 ,  H04J14/04

Abstract: An optical amplifier repeater system includes an optical fiber propagating a light beam in a plurality of propagation modes and an optical amplifier repeater amplifying the light beam propagated through the optical fiber. The optical amplifier repeater includes an optical demultiplexer demultiplexing the light beam in the plurality of propagation modes propagated through the optical fiber into a plurality of single-mode light beams, an optical amplifier amplifying, by simultaneous pumping, intensities of the plurality of single-mode light beams using a light beam generated by one pumping light source, an optical multiplexer multiplexing the plurality of single-mode light beams amplified by the optical amplifier into a light beam in the plurality of propagation modes, and an optical intensity adjusting unit adjusting the intensity of each of the plurality of single-mode light beams at least one of before or after the amplification by the optical amplifier. The optical intensity adjusting unit performs the adjustment by amplifying or attenuating the optical intensity of each of the plurality of single-mode light beams in an individual optical path through which the single-mode light beam is propagated.

公开(公告)号：US11933730B2

公开(公告)日：2024-03-19

申请号：US17616102

申请日：2019-06-06

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Shigeo Ishibashi

IPC: G01J3/44 ,  G01N21/65 ,  G02B21/06 ,  H01S3/30

CPC classification number: G01N21/65 ,  G02B21/06 ,  H01S3/302

Abstract: A light source employed in a coherent Raman scattering (CRS) spectroscopic apparatus or a CRS microscope includes a chromium forsterite laser (CrFL), a variable delay optical path configured to delay one optical pulse of branched optical pulses obtained by dividing an optical pulse from the CrFL according to a power, a highly nonlinear waveguide into which the other optical pulse of the branched optical pulses is input, a first wavelength filter connected to an output of the highly nonlinear waveguide, an ytterbium-doped glass fiber optical amplifier (YbFA) connected to an output of the wavelength filter, and a second wavelength filter connected to an output of the YbFA. The light source includes a one-optical path mode in which two wavelength bands corresponding to Raman scattering wavenumbers to be used for measurement are selected from an output of the variable delay optical path, and a two-optical path mode in which an output of the variable delay optical path and an output of the second wavelength filter are time-synchronized.

公开(公告)号：US20240055821A1

公开(公告)日：2024-02-15

申请号：US18258140

申请日：2021-12-17

Applicant: CERN - EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH

Inventor： Eduardo GRANADOS MATEO ,  Valentin N. FEDOSSEEV ,  Katerina CHRYSALIDIS ,  Richard P. MILDREN

IPC: H01S3/08031 ,  H01S3/06 ,  H01S3/094 ,  H01S3/102 ,  H01S3/30

CPC classification number: H01S3/08031 ,  H01S3/0606 ,  H01S3/094038 ,  H01S3/1028 ,  H01S3/30 ,  H01S3/0627

Abstract: A Raman laser conversion device for generating a single longitudinal mode, SLM, laser output is disclosed. The device comprises a Raman medium that exhibits a Stokes emission when subject to pumping by a laser pump input, the laser pump input having a pump linewidth and the Raman medium having a Raman linewidth; wherein the Raman medium is configured to define feedback interfaces of a resonator such that the Stokes emission resonates within the Raman medium; and further wherein the free spectral range, FSR, of the resonator with respect to the pump linewidth and/or the Raman linewidth or a function thereof is such that only one longitudinal mode of the Stokes emission is able to resonate within the Raman medium; whereby the laser conversion device generates a SLM laser output that is frequency shifted with respect to the laser pump input.