公开(公告)号：US20240347997A1

公开(公告)日：2024-10-17

申请号：US18330656

申请日：2023-06-07

申请人： Lumentum Operations LLC

发明人： Ning LIU ,  Guan SUN ,  Matthew KUTSURIS ,  Gongwen ZHU

IPC分类号： H01S3/067 ,  H01S3/094 ,  H01S3/16 ,  H01S3/23

CPC分类号： H01S3/06733 ,  H01S3/0675 ,  H01S3/094007 ,  H01S3/1603 ,  H01S3/2308

摘要： A master oscillator power amplifier system includes a seed laser oscillator and a master laser oscillator. The seed laser oscillator includes a first oscillator fiber with a first laser cavity configured to convert a first pump light into a first seed laser light in a fundamental mode as the first pump light interacts with a fiber core of the first oscillator fiber. The master laser oscillator includes a second oscillator fiber with second laser cavity configured to receive and convert the first seed laser light into a second seed laser light in the fundamental mode as the first seed laser light interacts with a fiber core of the second oscillator fiber, and receive and convert a second pump light into a primary laser light in the fundamental mode as the second pump light interacts with the fiber core of the second oscillator fiber.

公开(公告)号：US12117646B2

公开(公告)日：2024-10-15

申请号：US17333060

申请日：2021-05-28

申请人： University of Southampton

发明人： Francesco Poletti ,  Seyedmohammad Abokhamis Mousavi

IPC分类号： G02B6/02 ,  G02B6/024 ,  G02B6/255 ,  H01S3/067 ,  H01S3/16

CPC分类号： G02B6/02328 ,  G02B6/02357 ,  G02B6/024 ,  G02B6/255 ,  H01S3/06712 ,  H01S3/06729 ,  H01S3/1618

摘要： An anti-resonant hollow-core fiber comprising a first tubular, cladding element which defines an internal cladding surface, a plurality of second tubular elements which are attached to the cladding surface and together define a core with an effective radius, the second tubular elements being arranged in spaced relation and adjacent ones of the second tubular elements having a spacing therebetween, and a plurality of third tubular elements, each nested within a respective one of the second tubular elements.

公开(公告)号：US20240332883A1

公开(公告)日：2024-10-03

申请号：US18193864

申请日：2023-03-31

申请人： BAE SYSTEMS Information and Electronic Systems Integration Inc.

发明人： Anthony J. Catanese ,  Kevin T Werner ,  Michael L Lemons ,  Ezra S Allee ,  Yannick C. Morel

IPC分类号： H01S3/00 ,  G02F1/35 ,  G02F1/365 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/13 ,  H01S3/16

CPC分类号： H01S3/0057 ,  G02F1/3513 ,  G02F1/365 ,  H01S3/0092 ,  H01S3/06716 ,  H01S3/094011 ,  H01S3/094061 ,  H01S3/0941 ,  H01S3/13013 ,  H01S3/1616 ,  G02F2203/11 ,  H01S2301/085 ,  H01S2302/00

摘要： Ultrashort pulsed laser systems are described. In one example, a pulsed laser system includes a source laser configured to emit a pulsed source laser beam, a splitter configured to split the source laser beam into first and second input laser beams, a first amplifier module configured to amplify the first input laser beam using chirped pulse amplification (CPA) and to produce, at a first output port, a first output laser beam in a first spectral range based on soliton self-frequency shift (SSFS) in the first amplifier module, a second amplifier module configured to amplify the second input laser beam using CPA and to produce an intermediate beam based on SSFS in the second amplifier module, and a mid-infrared fiber configured to receive the intermediate beam and to produce, at a second output port, a second output laser beam in a second spectral range based SSFS in the mid-infrared fiber.

公开(公告)号：US20240297473A1

公开(公告)日：2024-09-05

申请号：US18659303

申请日：2024-05-09

申请人： The MITRE Corporation

发明人： Bonnie L. Marlow

IPC分类号： H01S3/00 ,  G02F1/35 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/227

CPC分类号： H01S3/0057 ,  G02F1/3536 ,  H01S3/0092 ,  H01S3/0941 ,  H01S3/227 ,  H01S3/169 ,  H01S2301/02

摘要： A degenerate four-wave mixing (DFWM) squeezed light apparatus includes one or more pump beams, a probe beam, a vapor cell, a repump beam, and a detector. The one or more pump beams includes an input power of no greater than about 150 mW. The vapor cell includes an atomic vapor configured to interact with overlapped pump and probe beams to generate an amplified probe beam and a conjugate beam. The repump beam is configured to optically pump the atomic vapor to a ground state and decrease atomic decoherence of the atomic vapor. The detector is configured to measure squeezing due to quantum correlations between the amplified probe beam and the conjugate beam. The one or more pump beams, the probe beam, and the repump beam are configured to generate two-mode squeezed light by DFWM with squeezing of at least 3 dB below shot noise.

公开(公告)号：US12072521B2

公开(公告)日：2024-08-27

申请号：US17079090

申请日：2020-10-23

申请人： The Board of Trustees of the University of Illinois ,  Clemson University

发明人： Peter D. Dragic ,  John Ballato ,  Thomas W. Hawkins

IPC分类号： G02B6/02 ,  F21V8/00 ,  H01S3/067 ,  H01S3/16

CPC分类号： G02B6/0003 ,  G02B6/02004 ,  H01S3/06716 ,  H01S3/1601

摘要： A fiber includes a core and cladding, both of which may have temperature dependent indices of refraction. The materials and size of the core and cladding may be selected such that as the temperature of the core and/or cladding is heated above room temperature, the fiber transitions from supporting multimode optical waveguiding to supporting single mode waveguiding.

公开(公告)号：US20240275121A1

公开(公告)日：2024-08-15

申请号：US18567824

申请日：2022-06-09

申请人： OFS Fitel LLC

发明人： Andrew T Grimes ,  Anand Hariharan ,  Jeffrey W Nicholson

IPC分类号： H01S3/16 ,  H01S3/00 ,  H01S3/067 ,  H01S3/094 ,  H01S3/30 ,  H04J14/02

CPC分类号： H01S3/1608 ,  H01S3/0078 ,  H01S3/06754 ,  H01S3/094046 ,  H01S3/302 ,  H04J14/0221

摘要： Embodiments of the present disclosure generally relate to systems, methods, and articles of manufacture for using a fiber laser with wavelength division multiplexers (WDMs) for a variety of purposes. For example, implementations described herein may be used with high-power Raman fiber laser (RFL) systems, or the like. A laser system is provided that may include a fiber laser; a laser path comprising optical fiber; and a plurality of wavelength division multiplexers (WDMs) positioned within the laser path coupling the optical fiber; wherein at least one of the plurality of WDMs has the widest wavelength spacing and is positioned first in the laser path, thereby providing increased power stability.

公开(公告)号：US20240275120A1

公开(公告)日：2024-08-15

申请号：US18197519

申请日：2023-05-15

申请人： TIANJIN UNIVERSITY

发明人： Wei SHI ,  Lu ZHANG ,  Shijie FU ,  Quan SHENG ,  Junxiang ZHANG ,  Jianquan YAO

IPC分类号： H01S3/08 ,  H01S3/067 ,  H01S3/094 ,  H01S3/16

CPC分类号： H01S3/0809 ,  H01S3/06716 ,  H01S3/06733 ,  H01S3/0675 ,  H01S3/094003 ,  H01S3/094042 ,  H01S3/094053 ,  H01S3/094096 ,  H01S3/1608 ,  H01S3/1618 ,  H01S2302/00 ,  H01S2303/00

摘要： The present disclosure discloses a 2.8 μm and 3.5 μm dual-wavelength mid-infrared fiber laser, which employs “0.98 μm+1.15 μm” pumping scheme, uses a fiber combiner to combine two pump lights into the double cladding Er-doped fluoride fiber. The Er ions in the ground state are first promoted to 4I11/2 level by the 0.98 μm pump light, realizing 2.8 μm lasing based on 4I11/2→4I13/2 transition, and further promoted to 4F9/2 level by the 1.15 μm pump light, generating 3.5 μm lasing based on 4F9/2→4I9/2 transition; followed by the 3.5 μm laser transition, the Er ions would rapidly decay to 4I11/2 level via non radiative transition, realizing the re-population of 4I11/2 level, effectively enlarge the population inversion of 2.8 μm transition, suppressing the self-termination of 2.8 μm lasing and achieving 2.8 μm and 3.5 μm dual-wavelength cascaded lasing output.

公开(公告)号：US20240261026A1

公开(公告)日：2024-08-08

申请号：US18611831

申请日：2024-03-21

申请人： GYRUS ACMI, INC. D/B/A OLYMPUS SURGICAL TECHNOLOGIES AMERICA

发明人： Kurt G. Shelton ,  Michaella C. Wright

IPC分类号： A61B18/26 ,  A61B1/00 ,  A61B1/015 ,  A61B1/018 ,  A61B1/05 ,  A61B1/06 ,  A61B1/12 ,  A61B1/307 ,  A61B1/31 ,  A61B17/3207 ,  A61B18/00 ,  A61B18/24 ,  A61M1/00 ,  H01S3/067 ,  H01S3/16

CPC分类号： A61B18/26 ,  A61B1/00006 ,  A61B1/00055 ,  A61B1/00087 ,  A61B1/015 ,  A61B1/018 ,  A61B1/06 ,  A61B1/126 ,  A61B1/307 ,  A61B1/31 ,  A61B18/24 ,  A61M1/74 ,  A61M1/77 ,  H01S3/06716 ,  A61B1/00045 ,  A61B1/00105 ,  A61B1/05 ,  A61B17/320783 ,  A61B2018/00482 ,  A61B2018/00505 ,  A61B2018/00511 ,  A61B2018/00559 ,  A61B2018/00642 ,  A61B2018/00672 ,  A61B2018/00678 ,  A61B2018/00696 ,  A61B2018/00702 ,  A61B2018/00773 ,  A61B2018/00982 ,  A61B2217/005 ,  A61B2217/007 ,  A61B2562/0247 ,  A61M2205/3334 ,  A61M2205/3344 ,  H01S3/1616

摘要： Systems and methods of in situ unclogging a working channel in a medical device during a procedure are disclosed. An exemplary unclogging system comprises a flow sensor to sense a flow rate through a working channel, and a control module to detect a channel state indicating a presence or absence of clogging based on the flow rate. In the presence of channel clogging, the control module can control one or more of an irrigation source or a suction source to provide respectively irrigation fluid or suction pressure to unclog the obstructed channel. The control module can adjust one or more of an irrigation flow rate or a suction flow rate through the working channel to maintain a desired pressure of the anatomical environment at the anatomical site, or to maintain a desired flow condition in the working channel, during the procedure.

公开(公告)号：US20240226347A9

公开(公告)日：2024-07-11

申请号：US18547604

申请日：2022-02-24

申请人： Nobuhiro UMEMURA ,  JOSHO GAKUEN EDUCATIONAL FOUNDATION ,  TOSOH SGM CORPORATION

发明人： Nobuhiro UMEMURA ,  Tomosumi KAMIMURA ,  Hideharu HORIKOSHI

IPC分类号： A61L2/00 ,  H01S3/08 ,  H01S3/16

CPC分类号： A61L2/0047 ,  H01S3/08004 ,  H01S3/1643 ,  A61L2202/11

摘要： The present invention relates to a 215- to 222-nm wavelength laser light generating device comprising: an excitation light source part for converting a laser light with a wavelength of 1030 to 1064 nm to a second harmonic, and generating a laser light with a wavelength of 515 to 532 nm; an optical parametric oscillating part for generating a signal light with a wavelength of 858 to 887 nm and an idler light with a wavelength of 1288 to 1330 nm using the laser light with the wavelength of 515 to 532 nm as an excitation light; a separating part for separating the signal light and the idler light; a first wavelength converting part for generating a fourth harmonic from the signal light; a second wavelength converting part for generating a deep ultraviolet light with a wavelength of 215 to 222 nm by sum frequency with a second harmonic of the excitation light from the idler light; and a coupling part for coupling the fourth harmonic from the first wavelength converting part and the deep ultraviolet light from the second wavelength converting part. The present invention provides a laser generating device that enables to generate simply and efficiently a pulse laser light with a wavelength of 215 to 222 nm including a wavelength of 222 nm disinfecting microorganisms.

公开(公告)号：US12023096B2

公开(公告)日：2024-07-02

申请号：US16968800

申请日：2019-02-08

申请人： GYRUS ACMI, INC.

发明人： Kurt G. Shelton ,  Masayasu Chida

IPC分类号： A61B1/00 ,  A61B1/015 ,  A61B1/018 ,  A61B1/06 ,  A61B1/12 ,  A61B1/307 ,  A61B1/31 ,  A61B18/24 ,  A61B18/26 ,  A61M1/00 ,  H01S3/067 ,  A61B1/05 ,  A61B17/3207 ,  A61B18/00 ,  H01S3/16

CPC分类号： A61B18/26 ,  A61B1/00006 ,  A61B1/00055 ,  A61B1/00087 ,  A61B1/015 ,  A61B1/018 ,  A61B1/06 ,  A61B1/126 ,  A61B1/307 ,  A61B1/31 ,  A61B18/24 ,  A61M1/74 ,  A61M1/77 ,  H01S3/06716 ,  A61B1/00045 ,  A61B1/00105 ,  A61B1/05 ,  A61B17/320783 ,  A61B2018/00482 ,  A61B2018/00505 ,  A61B2018/00511 ,  A61B2018/00559 ,  A61B2018/00642 ,  A61B2018/00672 ,  A61B2018/00678 ,  A61B2018/00696 ,  A61B2018/00702 ,  A61B2018/00773 ,  A61B2018/00982 ,  A61B2217/005 ,  A61B2217/007 ,  A61B2562/0247 ,  A61M2205/3334 ,  A61M2205/3344 ,  H01S3/1616

摘要： A medical laser apparatus, including: an energy guide; a first energy source configured to generate energy for treating a target tissue through the energy guide; a second energy source configured to emit first and second aiming beams to a target tissue through the energy guide, the second aiming beam having at least one characteristic different from the first aiming beam; and a controller comprising hardware, the controller being configured to: receive a signal indicating an illumination mode from at least two illumination modes used by an endoscope to illuminate the target tissue; and control the second energy source to output the first or second aiming beam based on the indicated illumination mode.