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    FIBER-COUPLED LASER WITH TIME VARYING BEAM CHARACTERISTICS
    3.
    发明申请
    FIBER-COUPLED LASER WITH TIME VARYING BEAM CHARACTERISTICS 审中-公开

    公开(公告)号：US20180287328A1

    公开(公告)日：2018-10-04

    申请号：US15939136

    申请日：2018-03-28

    申请人： Dahv A.V. Kliner ,  Brian Victor ,  Lynn Sheehan ,  Aaron Brown

    发明人： Dahv A.V. Kliner ,  Brian Victor ,  Lynn Sheehan ,  Aaron Brown

    IPC分类号： H01S3/067 ,  G02B6/036 ,  G02B6/255 ,  G02B27/09 ,  G02B6/028 ,  G02F1/01 ,  B23K26/06 ,  B23K26/073

    摘要： Methods, apparatus, and systems comprising a fiber-coupled laser and time-varying beam characteristics. A laser may generate an optical beam that is launched into one or more lengths of fiber, at least one of which comprises a confinement region that is optically coupled to an output. A perturbation device may modulate, through action upon the one or more lengths of fiber, a beam characteristic over a time period during which the laser is energized. A controller may cause the perturbation device to act upon the one or more lengths of fiber to impart a time-averaged beam characteristic and/or to induce a continuous variation in one or more beam characteristics during system use. A process monitor may sense a metric external to the optical system, and a feedback signal from the process monitor may be coupled into the controller. Dynamic beam characteristics may be modulated based on the feedback signal.

    HIGH-POWER, SINGLE-MODE FIBER SOURCES
    4.
    发明申请
    HIGH-POWER, SINGLE-MODE FIBER SOURCES 审中-公开

    公开(公告)号：US20180175578A1

    公开(公告)日：2018-06-21

    申请号：US15810506

    申请日：2017-11-13

    申请人： Dahv A.V. Kliner ,  Roger L. Farrow

    发明人： Dahv A.V. Kliner ,  Roger L. Farrow

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

    CPC分类号： H01S3/06729 ,  H01S3/06733 ,  H01S3/0675 ,  H01S3/08045 ,  H01S3/094007 ,  H01S3/09408

    摘要： An optical apparatus includes one or more pump sources situated to provide laser pump light, and a gain fiber optically coupled to the one or more pump sources, the gain fiber including an actively doped core situated to produce an output beam, an inner cladding and outer cladding surrounding the doped core and situated to propagate pump light, and a polymer cladding surrounding the outer cladding and situated to guide a selected portion of the pump light coupled into the inner and outer claddings of the gain fiber. Methods of pumping a fiber sources include generating pump light from one or more pump sources, coupling the pump light into a glass inner cladding and a glass outer cladding of a gain fiber of the fiber source such that a portion of the pump light is guided by a polymer cladding surrounding the glass outer cladding, and generating a single-mode output beam from the gain fiber.