利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

793 条记录 (耗时 0.025 秒)

    Mirror Coupling
    3.
    发明公开
    Mirror Coupling 审中-公开

    公开(公告)号：US20240151934A1

    公开(公告)日：2024-05-09

    申请号：US18415819

    申请日：2024-01-18

    申请人： Waymo LLC

    发明人： Blaise GASSEND ,  Ryan DAVIS ,  David DUFF

    IPC分类号： G02B7/182 ,  G01S7/481 ,  G01S17/06 ,  G02B6/26 ,  G02B26/10 ,  H01S3/081

    CPC分类号： G02B7/1821 ,  G01S7/4817 ,  G01S17/06 ,  G02B6/26 ,  G02B26/105 ,  H01S3/0811

    摘要： The present disclosure relates to optical devices and systems, specifically those related to light detection and ranging (LIDAR) systems. An example device includes a shaft defining a rotational axis. The shaft includes a first material having a first coefficient of thermal expansion. The device also includes a rotatable mirror disposed about the shaft. The rotatable mirror includes a multi-sided structure having an exterior surface and an interior surface. The multi-sided structure includes a second material having a second coefficient of thermal expansion. The second coefficient of thermal expansion is different from the first coefficient of thermal expansion. The multi-sided structure also includes a plurality of reflective surfaces disposed on the exterior surface of the multi-sided structure. The multi-sided structure yet further includes one or more support members coupled to the interior surface and the shaft.

    Laser device
    4.
    发明授权
    Laser device 有权

    公开(公告)号：US11870207B1

    公开(公告)日：2024-01-09

    申请号：US18366537

    申请日：2023-08-07

    申请人： Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

    发明人： Fei Chen ,  Yi Chen ,  Junjie Sun ,  Jinghua Yu ,  Zhihuan Yao ,  Yang He ,  Kuo Zhang ,  Deyang Yu

    IPC分类号： H01S3/08 ,  H01S3/081 ,  H01S3/16

    CPC分类号： H01S3/0815 ,  H01S3/0811 ,  H01S3/08059 ,  H01S3/1643 ,  H01S3/1698

    摘要： A laser device includes a gain medium, a zero-degree reflective mirror, a first retro-reflective mirror, a second retro-reflective mirror, and an output coupling mirror. The gain medium is used to generate radiation light; the zero-degree reflective mirror has a common optical axis with the gain medium, and the zero-degree reflective mirror is used to totally reflect second-direction radiation light that is incident on the zero-degree reflective mirror in an optical-axis direction; the first-direction radiation light and the first emitted light are spaced from and parallel to each other in opposite directions; the first emitted light and the second emitted light are spaced from and parallel to each other in opposite directions; a resonant cavity is formed between the zero-degree reflective mirror and the output coupling mirror; the output coupling mirror is used to transmit and output first partial radiation light, and reflect second partial radiation light.

    Low noise lasers with resonator filters
    5.
    发明授权
    Low noise lasers with resonator filters 有权

    公开(公告)号：US11862924B2

    公开(公告)日：2024-01-02

    申请号：US17128154

    申请日：2020-12-20

    申请人： Minh Tran

    发明人： Minh Tran

    IPC分类号： H01S3/00 ,  H01S3/10 ,  H01S3/063 ,  H01S5/14 ,  H01S3/081

    CPC分类号： H01S3/1003 ,  H01S3/0078 ,  H01S3/063 ,  H01S5/143 ,  H01S3/081

    摘要： A device comprises three elements. The first element, comprising an optical gain structure and a laser cavity mirror structure, couples light to the second element, comprising a phase tuner. The second element couples phase tuned light to the third element. The third element, comprising an optical resonator with first and second coupler/splitter structures, provides a primary optical output from the second coupler/splitter structure. Light coupled into the optical resonator through the first coupler/splitter structure and then coupled out of the optical resonator though the first coupler/splitter structure is injected back into the optical gain structure through the second element. Light coupled out of the optical resonator through the second coupler/splitter structure is provided as the primary optical output. Characteristic of the coupler/splitter structures and the optical resonator are selected such that the light injected back into the optical gain structure reduces linewidth, and noise in primary optical output is suppressed.

    METHOD AND LASER FOR BREAKING LIMITATION OF FLUORESCENCE SPECTRUM ON LASER WAVELENGTH
    7.
    发明申请
    METHOD AND LASER FOR BREAKING LIMITATION OF FLUORESCENCE SPECTRUM ON LASER WAVELENGTH 有权

    公开(公告)号：US20230091773A1

    公开(公告)日：2023-03-23

    申请号：US17952365

    申请日：2022-09-26

    申请人： Shandong University

    发明人： Haohai Yu ,  Huaijin Zhang ,  Yanfeng Chen ,  Fei Liang ,  Cheng He

    IPC分类号： H01S3/08 ,  H01S3/0941 ,  H01S3/106 ,  H01S3/16 ,  H01S3/081 ,  H01S3/06

    摘要： A method and a laser for breaking through the limitation of fluorescence spectrum on laser wavelength is disclosed. The method includes: exciting electrons to a high energy level by pump light, and suppressing an oscillation of radiation light by laser cavity coating, using a laser resonance to enhance a transition probability of an electron-phonon coupling from the high energy level to a multi-phonon coupling level, so as to realize the emission and enhancement of breakthrough fluorescence spectrum and realize the radiation light oscillation, wherein the laser cavity includes an incident mirror, a folding mirror, a tuning element and an exit mirror arranged in sequence along an optical path direction, the laser gain medium is located between an incident mirror and a folding mirror in the laser resonator, and the tuning element is arranged in the laser cavity at a Brewster angle.

    Apparatus for providing optical radiation
    9.
    发明授权
    Apparatus for providing optical radiation 有权

    公开(公告)号：US11569633B2

    公开(公告)日：2023-01-31

    申请号：US16762527

    申请日：2018-11-23

    申请人： Trumpf Laser UK Limited

    发明人： Paulo Almeida ,  Christophe Andre Codemard ,  Michael Kevan Durkin

    IPC分类号： H01S3/23 ,  H01S3/081 ,  H01S3/083 ,  H01S3/13 ,  H01S3/131 ,  H01S3/136 ,  H01S3/16

    摘要： Apparatus for providing optical radiation (15), which apparatus comprises an optical input (13), a coupler (2), a first semiconductor amplifier (3), a controller (4), a preamplifier (61), a power amplifier (62) and an output fibre (5), wherein: the optical input (13) is for receiving input optical radiation (14); the optical input (13) is connected in series to the coupler (2), the first semiconductor amplifier (3), the preamplifier (61), the power amplifier (62), and the output fibre (5); the apparatus being characterized in that: the first semiconductor amplifier (3) comprises a waveguide (6) having a low reflecting facet (8); the first semiconductor amplifier (3) is in a double pass configuration such that the low reflecting facet (8) is connected to both the optical input (13) and the preamplifier (61) via the coupler (2); and the controller (4) is configured to cause the waveguide (6) of the first semiconductor amplifier (3) to operate in saturation thereby enabling the first semiconductor amplifier (3) to reduce non-linear effects in the preamplifier (61), the power amplifier (62), and the output fibre (5).

    LIGHT SOURCE APPARATUS AND INSPECTION APPARATUS
    10.
    发明申请
    LIGHT SOURCE APPARATUS AND INSPECTION APPARATUS 有权

    公开(公告)号：US20220376458A1

    公开(公告)日：2022-11-24

    申请号：US17664183

    申请日：2022-05-19

    申请人： Lasertec Corporation

    发明人： Jun SAKUMA ,  Akihiro ANDO

    IPC分类号： H01S3/10 ,  G02F1/355 ,  H01S5/14 ,  H01S3/081 ,  H01S3/108

    摘要： A decrease of an output of a wavelength converted light converted by a nonlinear optical crystal is suppressed. A light source apparatus according to the present disclosure includes a fundamental wave light source configured to generate a fundamental wave which is a continuous oscillation laser beam, an external cavity including a plurality of optical mirrors, a nonlinear optical crystal installed inside the external cavity and configured to generate a light with a wavelength shorter than that of the fundamental wave. The light source apparatus includes at least one phase modulator disposed between the fundamental wave light source and the external cavity and configured to modulate the fundamental wave by a modulation frequency of an integer multiple of a resonance frequency interval of the external cavity.