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    Laser apparatus and extreme ultraviolet light generation system
    3.
    发明授权
    Laser apparatus and extreme ultraviolet light generation system 有权

    公开(公告)号：US11539180B2

    公开(公告)日：2022-12-27

    申请号：US16429090

    申请日：2019-06-03

    申请人： Gigaphoton Inc.

    发明人： Yoshiaki Kurosawa

    IPC分类号： H01S3/13 ,  H01S3/102 ,  H01S3/131 ,  H01S3/23 ,  H01S3/134

    摘要： A laser apparatus according to an aspect of the present disclosure includes: a master oscillator; at least one amplifier disposed on an optical path of a first pulse laser beam output from the master oscillator; a sensor disposed on an optical path of a second pulse laser beam output from the at least one amplifier; and a laser controller. The laser controller causes the laser apparatus to perform burst oscillation based on a burst signal from an external device, and performs processing of controlling a beam parameter based on a sensor output signal obtained from the sensor in a burst duration, and processing of detecting self-oscillation light from the amplifier based on a sensor output signal obtained from the sensor in a burst stop duration.

    Picosecond Optical Radiation Systems and Methods of Use
    4.
    发明申请
    Picosecond Optical Radiation Systems and Methods of Use 有权

    公开(公告)号：US20220387105A1

    公开(公告)日：2022-12-08

    申请号：US17886685

    申请日：2022-08-12

    申请人： CYNOSURE, LLC

    发明人： Mirko Georgiev Mirkov ,  Rafael Armando Sierra

    IPC分类号： A61B18/20 ,  A61N5/06 ,  H01S3/06 ,  H01S3/094 ,  H01S3/11 ,  H01S3/08 ,  H01S3/102

    摘要： Methods, systems and apparatus are disclosed for delivery of pulsed treatment radiation by employing a pump radiation source generating picosecond pulses at a first wavelength, and a frequency-shifting resonator having a lasing medium and resonant cavity configured to receive the picosecond pulses from the pump source at the first wavelength and to emit radiation at a second wavelength in response thereto, wherein the resonant cavity of the frequency-shifting resonator has a round trip time shorter than the duration of the picosecond pulses generated by the pump radiation source. Methods, systems and apparatus are also disclosed for providing beam uniformity and a sub-harmonic resonator.

    Gain Adjuster, Gain Adjustment Method, and Optical Line Terminal
    5.
    发明申请
    Gain Adjuster, Gain Adjustment Method, and Optical Line Terminal 有权

    公开(公告)号：US20220344891A1

    公开(公告)日：2022-10-27

    申请号：US17836775

    申请日：2022-06-09

    申请人： Huawei Technologies Co., Ltd.

    发明人： Yongze Yu ,  Hengyun Jiang ,  Yunfei Yan

    IPC分类号： H01S3/102 ,  H01S3/094 ,  H01S3/10

    摘要： A gain adjuster, a gain adjustment method, and an optical line terminal are provided, to separately adjust a gain of a to-be-adjusted optical signal. The gain adjuster includes a light spot conversion component and a gain medium that are sequentially coupled. The gain adjuster further includes a pump laser. The light spot conversion component is configured to adjust light spot sizes of at least some optical signals in received optical signals to output a first optical signal transmitted in space. The pump laser is configured to excite the gain medium. The gain medium is configured to adjust a gain of the first optical signal to output a second optical signal.

    Single photons source and key distribution
    6.
    发明授权
    Single photons source and key distribution 有权

    公开(公告)号：US11303361B2

    公开(公告)日：2022-04-12

    申请号：US16960641

    申请日：2019-01-15

    申请人： National University of Singapore

    发明人： Euk Jin Alexander Ling ,  Robert Bedington ,  James Anthony Grieve

    IPC分类号： H04B10/00 ,  H04B10/70 ,  G02F1/355 ,  H01S3/102 ,  H04B10/112 ,  H04B10/85 ,  H04J14/00

    摘要： A method of key distribution, a key distribution system, a single photon source system and a method of generating single photons. The method of key distribution comprises the steps of: providing a free space optics, FSO, link between a transmitter and a receiver; detecting whether an eavesdropper is present along the FSO link; transmitting individual photons or weak coherent pulses, as an approximation of individual photons, each encoding a basic unit of the key according to a binary or higher number base system from the transmitter to the receiver; and comparing timing information associated with the transmission and reception of the individual photons for determining the key when it is detected that no eavesdropper is present along the FSO link.

    Physically operable and mechanically reconfigurable light sources
    7.
    发明授权
    Physically operable and mechanically reconfigurable light sources 有权

    公开(公告)号：US11303089B2

    公开(公告)日：2022-04-12

    申请号：US16486774

    申请日：2018-02-19

    申请人： The Regents of the University of California

    发明人： Holger Schmidt

    IPC分类号： H01S3/102 ,  H01S3/063 ,  H01S3/02 ,  H01S3/083 ,  H01S3/0915 ,  H01S3/213 ,  H01S3/105 ,  H01S5/12 ,  H01S3/106 ,  H01S3/1055 ,  H01S5/34

    摘要： A combination of microvalves and waveguides may enable the creation of reconfigurable on-chip light sources compatible with planar sample preparation and particle sensing architecture using either single-mode or multi-mode interference (MMI) waveguides. A first type of light source is a DFB laser source with lateral gratings created by the light valves. Moreover, feedback for creating a narrowband light source does not have to be a DFB grating in the active region. A DBR configuration (Bragg mirrors on one or both ends of the active region) or simple mirrors at the end of the cavity can also be used. Alternately, ring resonators may be created using a valve coupled to a bus waveguide where the active gain medium is either incorporated in the ring or inside an enclosed fluid. The active light source may be activated by moving a fluid trap and/or a solid-core optical component defining its active region.

    SELF-INJECTION LOCKED STIMULATED BRILLOUIN SCATTERING LASER
    9.
    发明申请
    SELF-INJECTION LOCKED STIMULATED BRILLOUIN SCATTERING LASER 有权

    公开(公告)号：US20210384695A1

    公开(公告)日：2021-12-09

    申请号：US16892016

    申请日：2020-06-03

    申请人： Honeywell International Inc.

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

    IPC分类号： H01S3/108 ,  H01S3/083 ,  H01S3/30 ,  H01S3/102

    摘要： Systems and methods for a self-injection locked SBS laser are provided herein. In certain embodiments, a system includes a pump laser source providing a pump laser; an SBS resonator receiving the pump laser through a first port and scattering some of the pump laser to provide an SBS laser through the first port, wherein a frequency shift of Brillouin scattering within the SBS resonator is an integer multiple of a free-spectral range for the SBS resonator; a filter receiving the pump laser on a first filter port and the SBS laser on a second filter port, wherein the pump laser is output through the second filter port and the SBS laser is output through a drop port; and a pump laser path coupling the output pump laser into the pump laser source, wherein a frequency of the pump laser becomes locked to a resonance frequency of the SBS resonator.