公开(公告)号：US20190072756A1

公开(公告)日：2019-03-07

申请号：US15911093

申请日：2018-03-03

Applicant: LUMENIS LTD.

Inventor： Tal Waisman ,  Arkady Khachaturov ,  Moshe Elazar ,  Alla Shnaider ,  Assaf Preiss ,  Izchak Zobel

IPC: G02B26/08 ,  G02B27/09 ,  H01S3/00 ,  H01S3/23 ,  H01S3/06 ,  H01S3/092 ,  H01S3/102 ,  H01S3/02

CPC classification number: G02B26/0816 ,  G02B27/0905 ,  G02B27/0977 ,  H01S3/005 ,  H01S3/0071 ,  H01S3/025 ,  H01S3/061 ,  H01S3/092 ,  H01S3/1024 ,  H01S3/2383

Abstract: A multiple cavity laser system includes: a controller configured to operate the system as well as a plurality of laser cavities, each of the laser cavities having an output end wherein, when activated by the controller, an output laser beam is emitted from the output end of each of the laser cavities. The output laser beams when activated are directed, either directly or indirectly, to a rotating mirror. The rotating mirror is operatively connected to the controller and a servo motor. The servo motor, under direction of the controller, redirects the output laser beams along a common optical axis and the output laser beams of the plurality of laser cavities are combined along the common optical axis.

公开(公告)号：US10170883B1

公开(公告)日：2019-01-01

申请号：US15851484

申请日：2017-12-21

Applicant: Robert O. Hunter, Jr.

Inventor： Robert O. Hunter, Jr.

IPC: H01S3/10 ,  H01S3/00 ,  H01S3/102 ,  H01S3/30 ,  H01S3/22 ,  H01S3/094 ,  H01S3/0943 ,  H01S3/23 ,  H01S3/108 ,  H01S3/225

Abstract: The present architecture utilizes a Nonlinear Scattering Aperture Combiner that does not need to be optically multiplexed and then drives a Direct Compressor stage that produces a large temporal compression ratio to pump a Fast Compressor. This eliminates the need for a separate array of ATDMs, multiplexing optical elements, and, at the approximate 107 joule energy output required for ICF, reduces the number of mechanical elements and gas interfaces from the order of 103 to about 10. In addition, this provides a large reduction of the volume of the gas containment region. In order to accomplish this, a technique for transversely segmenting by color and/or polarization of the optical extraction beams of the Direct Compressor has been invented. In particular, it emphasizes the simplicity and uniqueness of design of the Direct Compressor. The Direct Compressor is unique in terms of high fluence, high temporal compression ratios, and high stage gain, leading to a very large reduction in laser costs. It may separately have many other applications than ICF.

公开(公告)号：US10137633B2

公开(公告)日：2018-11-27

申请号：US15526711

申请日：2015-11-05

Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBH

Inventor： Frank Herzog ,  Florian Bechmann ,  Markus Lippert ,  Johanna Windfelder

IPC: B29C64/153 ,  B33Y50/02 ,  B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/393 ,  B23K26/06 ,  G02B26/10 ,  H01S3/101 ,  H01S3/102 ,  B29C64/277

Abstract: A method for controlling the exposure of a selective laser sintering or laser melting apparatus. The method includes providing a selective laser sintering apparatus or laser melting apparatus that uses successive solidification of layers of a powder-type construction material that can be solidified using radiation. The apparatus comprises an irradiation device for irradiating layers of the construction material that has a plurality of scanners that can separately be actuated, simultaneously irradiating the construction material, the separate detection of irradiation times of each scanner and/or the irradiation areas detected by each scanner, and storing the detected irradiation times and/or irradiation areas; comparing the irradiation times and/or irradiation areas of the scanners with each other; re-determining the surface sections of a powder layer to be irradiated by each scanner so the irradiation times for each scanner are approximated to each other and/or the irradiation areas of each scanner are aligned.

公开(公告)号：US20180269646A1

公开(公告)日：2018-09-20

申请号：US15901838

申请日：2018-02-21

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： David Welford ,  Martin A. Jaspan ,  Jason M. Eichenholz ,  Scott R. Campbell ,  Lane A. Martin ,  Matthew D. Weed

IPC: H01S3/11 ,  H01S3/0941 ,  H01S3/102 ,  G01S7/481 ,  H01S3/094 ,  G01S17/10 ,  G01S17/88 ,  H01S3/30

CPC classification number: H01S3/1115 ,  G01S7/4814 ,  G01S7/484 ,  G01S17/10 ,  G01S17/42 ,  G01S17/88 ,  H01S3/0092 ,  H01S3/061 ,  H01S3/0612 ,  H01S3/0621 ,  H01S3/0627 ,  H01S3/08 ,  H01S3/094076 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/1022 ,  H01S3/113 ,  H01S3/1611 ,  H01S3/1643 ,  H01S3/1673 ,  H01S3/30

Abstract: A lidar system can include a solid-state laser to emit pulses of light. The solid-state laser can include a Q-switched laser having a gain medium and a Q-switch. The lidar system can also include a scanner configured to scan the emitted pulses of light across a field of regard and a receiver configured to detect at least a portion of the scanned pulses of light scattered by a target located a distance from the lidar system. The lidar system can also include a processor configured to determine the distance from the lidar system to the target based at least in part on a round-trip time of flight for an emitted pulse of light to travel from the lidar system to the target and back to the lidar system.

公开(公告)号：US20180159290A1

公开(公告)日：2018-06-07

申请号：US15825413

申请日：2017-11-29

Applicant: INNOVEN ENERGY LLC

Inventor： Robert O. Hunter, JR.

IPC: H01S3/00 ,  H01S3/102 ,  H01S3/10 ,  H01S3/108 ,  H01S3/08 ,  H01S3/094

CPC classification number: H01S3/0057 ,  G21B1/03 ,  G21B1/23 ,  H01S3/005 ,  H01S3/0071 ,  H01S3/0092 ,  H01S3/0805 ,  H01S3/094061 ,  H01S3/10084 ,  H01S3/1024 ,  H01S3/1086 ,  H01S3/2383 ,  H01S3/30

Abstract: Embodiments include an optical configuration of a laser for driving an inertial confinement target that may include a section configured to generate long pulse laser light (Primary Laser Source) and then to compress the long pulse with multiple compression stages to a desired pulse length, energy, and beam quality (Compression Section). These configurations can utilize compression stages that do not include any material optics operating near damage fluence, and that do not require material optics exposed to high fluences to couple compression stages to each other.

公开(公告)号：US09939631B2

公开(公告)日：2018-04-10

申请号：US14660979

申请日：2015-03-18

Applicant: LUMENIS LTD.

Inventor： Tal Waisman ,  Arkady Khachaturov ,  Moshe Elazar ,  Alla Shnaider ,  Assaf Preiss ,  Izchak Zobel

IPC: G02B26/08 ,  G02B26/10 ,  G02B26/12 ,  H01S3/00 ,  G02B27/09 ,  H01S3/23 ,  H01S3/092 ,  H01S3/102 ,  H01S3/02 ,  H01S3/06

CPC classification number: G02B26/0816 ,  G02B27/0905 ,  G02B27/0977 ,  H01S3/005 ,  H01S3/0071 ,  H01S3/025 ,  H01S3/061 ,  H01S3/092 ,  H01S3/1024 ,  H01S3/2383

Abstract: A multiple cavity laser system includes: a controller configured to operate the system as well as a plurality of laser cavities, each of the laser cavities having an output end wherein, when activated by the controller, an output laser beam is emitted from the output end of each of the laser cavities. The output laser beams when activated are directed, either directly or indirectly, to a rotating mirror. The rotating mirror is operatively connected to the controller and a servo motor. The servo motor, under direction of the controller, redirects the output laser beams along a common optical axis and the output laser beams of the plurality of laser cavities are combined along the common optical axis.

公开(公告)号：US20180090906A1

公开(公告)日：2018-03-29

申请号：US15563420

申请日：2016-03-30

Applicant: HORIBA ABX SAS ,  UNIVERSITE DE LIMOGES ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： Vincent COUDERC ,  Roland GRANDO ,  Alexis LABRUYERE ,  Nelly RONGEAT ,  Denisa SUBTIRELU

IPC: H01S3/10 ,  G01N15/14 ,  G01N15/10 ,  H01S3/102

CPC classification number: H01S3/10046 ,  G01N15/1031 ,  G01N15/1427 ,  G01N15/1459 ,  H01S3/1024

Abstract: The invention relates to a method for triggering a pulsed light source, wherein it comprises at least one iteration of the following steps: receiving a control signal; determining what is called a separation time between the reception of said control signal and at least one preceding control signal; adjusting at least one control parameter of said pulsed light source depending at least on said separation; generating at least one electrical signal for triggering the pulsed light source depending on said at least one control parameter adjusted during the preceding step; and triggering the pulsed light source depending on said at least one triggering electrical signal.

公开(公告)号：US20180054042A1

公开(公告)日：2018-02-22

申请号：US15557916

申请日：2016-03-23

Applicant: IPG PHOTONICS CORPORATION

Inventor： Igor MOSKALEV

IPC: H01S5/347 ,  H01S3/094 ,  H01S3/102 ,  H01S3/06 ,  H01S3/16 ,  H01S3/042 ,  H01S3/08 ,  H01S3/04

CPC classification number: H01S5/347 ,  H01S3/0408 ,  H01S3/042 ,  H01S3/0602 ,  H01S3/0604 ,  H01S3/0608 ,  H01S3/08072 ,  H01S3/094042 ,  H01S3/1026 ,  H01S3/162 ,  H01S3/1623 ,  H01S3/1628

Abstract: The present invention provides a rotating chalcogenide gain media ring to provide un-precedented power generation with minimal thermal lensing for CW lasing in the mid-IR spectrum.

公开(公告)号：US09726539B2

公开(公告)日：2017-08-08

申请号：US15248230

申请日：2016-08-26

Applicant: OMNI MEDSCI, INC.

Inventor： Mohammed N. Islam

IPC: G02B6/00 ,  G01J3/10 ,  H01S3/30 ,  G01B9/02 ,  G01J3/02 ,  H01S5/00 ,  H01S5/10 ,  H01S5/14 ,  G01J3/42 ,  G02B6/293 ,  G02F1/365 ,  H01S5/40 ,  G02F1/35 ,  H01S3/067 ,  H01S3/094 ,  H01S3/102

CPC classification number: G01J3/108 ,  G01B9/02091 ,  G01J3/0218 ,  G01J3/0245 ,  G01J3/42 ,  G01J2003/102 ,  G01J2003/423 ,  G02B6/29349 ,  G02F1/365 ,  G02F2001/3528 ,  G02F2202/32 ,  H01S3/06725 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/094069 ,  H01S3/094076 ,  H01S3/1024 ,  H01S3/302 ,  H01S5/0064 ,  H01S5/0085 ,  H01S5/0092 ,  H01S5/1092 ,  H01S5/146 ,  H01S5/4012 ,  H01S2301/085

Abstract: A white light spectroscopy system includes a super continuum light source having an input light source including semiconductor diodes to generate an input beam having a wavelength shorter than 2.5 microns. The light source includes a cladding-pumped fiber optical amplifier to receive the input beam, and a photonic crystal fiber to receive the amplified optical beam to broaden the spectral width to 100 nm or more forming an output beam in the visible wavelength range. The output beam is pulsed with a repetition rate of 1 Megahertz or higher. The system also includes a lens and/or mirror to receive the output beam, to send the output beam to a scanning stage, and to deliver the received output beam to a sample. A detection system includes dispersive optics and narrow band filters followed by one or more detectors to permit approximately simultaneous measurement of at least two wavelengths from the sample.

公开(公告)号：US20170207599A1

公开(公告)日：2017-07-20

申请号：US15410406

申请日：2017-01-19

Applicant: STC.UNM

Inventor： Ravinder K. Jain

IPC: H01S3/30 ,  G02B6/02 ,  H01S3/094 ,  H01S3/102 ,  H01S3/105

CPC classification number: H01S3/302 ,  G02B6/02138 ,  G02B6/02142 ,  H01S3/0675 ,  H01S3/08086 ,  H01S3/094042 ,  H01S3/094046 ,  H01S3/094096 ,  H01S3/09415 ,  H01S3/1003 ,  H01S3/1028 ,  H01S3/1053

Abstract: Improved Raman Fiber Laser (RFL) generators may include a mid-infrared fiber, e.g., a fiber comprising a tellurite glass, a chalcogenide glass, a fluoride glass, or similar material. A phase-shifted fiber Bragg grating may be inscribed in the fiber. A pump laser generator may be coupled with the fiber in order to supply a pump laser to the fiber. When stimulated by the pump laser, the RFL generator may emit an output laser having a mid-infrared wavelength. A tuner may be used to tune the output laser.