公开(公告)号：US20220224070A1

公开(公告)日：2022-07-14

申请号：US17145835

申请日：2021-01-11

申请人： TOPTICA Photonics, Inc.

发明人： Adam Taylor HEINIGER ,  Matthew James CICH

IPC分类号： H01S3/109 ,  H01S3/07 ,  H01S3/00 ,  G02F1/35

摘要： The invention relates to a method for generating frequency converted laser radiation. It is an object of the invention to provide a method that enables the generation of a frequency converted optical frequency comb and that is easy to implement at low cost. It is a further object to enable adjustment of the center frequency and the mode spacing in a frequency converted optical frequency comb. The method of the invention comprises the following steps: generating pump laser radiation with a spectrum containing a plurality of equidistant spectral lines; passing the pump laser radiation through the non-linear medium of a singly resonant, single-frequency optical parametric oscillator, wherein the pump laser radiation is continuous wave or pulsed, wherein the pulse duration in the latter case is longer than the time the optical parametric oscillation requires to reach its steady state; and coupling out the non-resonant idler or signal laser radiation from the optical parametric oscillator as usable frequency converted laser radiation. Moreover, the invention relates to a laser device for carrying out the method of the invention.

公开(公告)号：US10374377B2

公开(公告)日：2019-08-06

申请号：US15544613

申请日：2016-01-13

申请人： HAMAMATSU PHOTONICS K.K.

发明人： Takashi Sekine ,  Yoshinori Kato ,  Yoshinori Tamaoki ,  Takashi Kurita ,  Toshiyuki Kawashima ,  Takaaki Morita

IPC分类号： H01S3/04 ,  H01S3/042 ,  H01S3/07 ,  H01S3/10 ,  H01S3/06 ,  H01S3/02 ,  H01S3/093 ,  H01S3/16 ,  H01S3/091

摘要： A plate-like laser medium has a through-hole for providing a flow of a cooling medium. The laser medium unit includes the plurality of laser media. A laser beam amplification device includes a laser medium unit 10, an excitation light source 21 that causes excitation light to enter the laser medium unit 10, a through-hole 16a of a window member as a unit for supplying the cooling medium in a through-hole 14a of the laser medium 14, and a cooling medium flow path F1 arranged around the laser medium unit 10.

公开(公告)号：US10367324B2

公开(公告)日：2019-07-30

申请号：US15790900

申请日：2017-10-23

申请人： INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATUAL SCIENCES

发明人： Takunori Taira ,  Arvydas Kausas ,  Lihe Zheng

IPC分类号： H01S3/042 ,  H01S3/17 ,  H01S5/02 ,  B29C65/16 ,  B29C65/00 ,  H01S3/04 ,  H01S3/16 ,  H01S5/024 ,  G02F1/35 ,  H01S3/06 ,  H01S3/113 ,  H01S3/108 ,  H01S3/07

摘要： A laser component is provided, including a laser medium and a transparent heat transmitting member, at least one of which is oxide. Bonding surfaces of the laser medium and the transparent heat transmitting member are exposed to oxygen plasma, and thereafter the bonding surfaces are brought into contact without heating. The laser medium and the transparent heat transmitting member are bonded at atomic levels, their thermal resistance is low, and no large residual stress is generated due to the bonding taking place under normal temperature. The process of oxygen plasma exposure ensures transparency of their bonding interface. The laser medium and the transparent heat transmitting member are stably bond via an amorphous layer.

公开(公告)号：US10036934B2

公开(公告)日：2018-07-31

申请号：US15533275

申请日：2015-12-13

申请人： OCUWAVE LTD.

发明人： Nissim Cohen

IPC分类号： G02F1/35 ,  H01S3/07 ,  H01S3/00 ,  H01S3/109 ,  H01S3/08 ,  H01S3/067 ,  H01S3/082 ,  H01S3/16 ,  G02F1/37

CPC分类号： G02F1/353 ,  G02F1/3501 ,  G02F1/37 ,  H01S3/0092 ,  H01S3/06708 ,  H01S3/07 ,  H01S3/08054 ,  H01S3/08086 ,  H01S3/08095 ,  H01S3/0815 ,  H01S3/082 ,  H01S3/108 ,  H01S3/1083 ,  H01S3/1086 ,  H01S3/109 ,  H01S3/11 ,  H01S3/1611 ,  H01S3/1618 ,  H01S3/1643

摘要： A laser system is described, the laser system comprising: an optical cavity defined by at least first and second at least partially reflecting elements; and a gain system. The gain system comprising at least first and second gain media located within the optical cavity. The first and second gain media are configured to generate optical radiation of at least first and second wavelength ranges in response to pumping energy.

公开(公告)号：US20170330636A1

公开(公告)日：2017-11-16

申请号：US15527373

申请日：2015-11-18

申请人： HAMAMATSU PHOTONICS K.K.

发明人： Takashi SEKINE ,  Yoshinori KATO ,  Yasuki TAKEUCHI ,  Toshiyuki KAWASHIMA

IPC分类号： G21B1/23 ,  H01S3/16 ,  H01S3/091 ,  H01S3/07 ,  H01S3/06 ,  H01S3/23 ,  H01S3/042

摘要： The laser amplification apparatus is provided with a plurality of plate-shaped laser medium components (M1 to M4) which are disposed to be aligned along a thickness direction, and prisms (P1 to P3) which optically couples the laser medium components. Each of the laser medium components is provided with a main surface to which a seed light is incident, and a side surface which surrounds the main surface. An excitation light is incident from at least one side surface of a specific laser medium component among the plurality of laser medium components. The excitation light is incident through the prism to a side surface of the laser medium component adjacent to the prism.

公开(公告)号：US09755753B2

公开(公告)日：2017-09-05

申请号：US14146717

申请日：2014-01-02

申请人： OE SOLUTIONS AMERICA, INC.

发明人： Daniel Jacob Blumenthal

IPC分类号： H01S5/00 ,  H04B10/50 ,  H01S3/10 ,  H01S5/02 ,  H01S5/14 ,  H01S5/026 ,  H01S5/0625 ,  H01S5/10 ,  H01S5/40 ,  H01S3/07 ,  H01S3/105 ,  H01S3/106

CPC分类号： H04B10/505 ,  H01S3/07 ,  H01S3/10061 ,  H01S3/105 ,  H01S3/106 ,  H01S5/005 ,  H01S5/0085 ,  H01S5/0206 ,  H01S5/026 ,  H01S5/0265 ,  H01S5/06256 ,  H01S5/1007 ,  H01S5/101 ,  H01S5/1032 ,  H01S5/1071 ,  H01S5/1096 ,  H01S5/14 ,  H01S5/142 ,  H01S5/4012

摘要： According to the present invention, a monolithically integrated laser 102, also referred to herein as a U-laser 102, or integrated dual optical emission laser 102, having a first optical emission 104 and a second optical emission 106 where both the first and second optical emissions 104, 106 of the monolithically integrated laser 102 are in optical communication with a modulator 108 or other device is provided. The integrated dual emission laser 102 can be formed with a light bending portion 134 in variety of configurations including a waveguide in the form of a U-shape, or total internal reflection (TIR) mirrors, curved waveguides, and free-space etched gap mirrors. The integrated dual optical emission laser 102 can also have two laser gain sections 130, 148, one on each arm of the laser 102 to control gain.

公开(公告)号：US09680277B2

公开(公告)日：2017-06-13

申请号：US14657640

申请日：2015-03-13

申请人： Gigaphoton Inc.

发明人： Krzysztof Nowak ,  Takashi Suganuma ,  Takashi Saito ,  Yasufumi Kawasuji

IPC分类号： H01S3/034 ,  H01S3/07 ,  H01S3/09 ,  H01S3/23 ,  H01S3/223 ,  H01S3/22 ,  H01S3/0971 ,  H01S3/03 ,  H05G2/00

CPC分类号： H01S3/034 ,  H01S3/03 ,  H01S3/076 ,  H01S3/0971 ,  H01S3/2232 ,  H01S3/2316 ,  H01S3/2325 ,  H01S3/2366 ,  H01S3/2375 ,  H01S2301/02 ,  H05G2/008

摘要： There is provided a slab amplifier including an optical system (48, 51) provided in a chamber (47) to allow a seed beam having entered from a first window into the space between a pair of electrodes (42, 43) to be repeatedly reflected between the space so that the seed beam is amplified to be an amplified beam; a first aperture plate (61) provided between the first window and the electrodes, and having an opening of a dimension equal to or greater than a cross-section of the seed beam and equal to or smaller than a dimension of the first window; and a second aperture plate (62) provided between the second window and the electrodes, and having an opening of a dimension equal to or greater than a cross-section of the amplified beam and equal to or smaller than a dimension of the second window.

公开(公告)号：US09664898B2

公开(公告)日：2017-05-30

申请号：US14342504

申请日：2012-07-19

申请人： Kevin L. Armbruster ,  Brad D. Gilmartin ,  Peter J. Kueckendahl ,  Bernard J. Richard ,  Daniel J. Ryan

发明人： Kevin L. Armbruster ,  Brad D. Gilmartin ,  Peter J. Kueckendahl ,  Bernard J. Richard ,  Daniel J. Ryan

IPC分类号： G02B26/10 ,  B23K26/06 ,  H01S3/07 ,  H01S3/23 ,  H01S3/00 ,  H01S3/03 ,  B23K26/00 ,  B23K26/70 ,  B23K26/142 ,  B23K26/082 ,  H01S3/0975 ,  H01S3/223 ,  H01S3/041

CPC分类号： G02B26/10 ,  B23K26/00 ,  B23K26/0608 ,  B23K26/082 ,  B23K26/142 ,  B23K26/702 ,  B23K26/703 ,  H01S3/0071 ,  H01S3/03 ,  H01S3/041 ,  H01S3/076 ,  H01S3/0975 ,  H01S3/2232 ,  H01S3/2383

摘要： Laser device comprising at least two gas laser units (10), stacked in layers, each laser unit comprising a plurality of resonator tubes (12), the resonator tubes being in fluidic communication with each other and forming a common tubular space, connecting elements (20, 21) for connecting adjacent resonator tubes so as to form a loop, mirrors (22) arranged in the connecting elements for reflecting the laser light between the resonator tubes, a rear mirror (44) and a partially reflecting output coupler (42) for coupling out a laser beam. In each laser unit an integrated output flange (40) comprises the rear mirror, the partially reflecting output coupler and an output mirror (46) which deflects the laser beam passing through the output coupler to a scanning device (80) located in the central space (8) surrounded by the resonator tubes. The invention also relates to a method for marking an object.

公开(公告)号：US09627839B2

公开(公告)日：2017-04-18

申请号：US13981440

申请日：2011-05-13

申请人： William Andrew Clarkson ,  Rafal Cieslak

发明人： William Andrew Clarkson ,  Rafal Cieslak

IPC分类号： H01S3/08 ,  H01S3/067 ,  H01S3/07 ,  H01S3/082 ,  H01S3/108 ,  H01S3/109 ,  G02F1/35 ,  H01S3/06 ,  H01S3/094

CPC分类号： H01S3/08 ,  G02F2001/3542 ,  H01S3/0604 ,  H01S3/067 ,  H01S3/0675 ,  H01S3/06791 ,  H01S3/07 ,  H01S3/08022 ,  H01S3/0826 ,  H01S3/094042 ,  H01S3/094084 ,  H01S3/1083 ,  H01S3/1086 ,  H01S3/109

摘要： A fiber gain medium provided by a rare-earth doped fiber (10) is contained in a first resonant cavity by end reflectors (12, 18). The reflector (12) is wavelength selective to limit the frequency band of the first resonant cavity. The first resonant cavity also contains a second resonant enhancement cavity (16) with multiple transmission bands lying within the first resonant cavity's frequency band. Multiple standing wave modes of the first resonant cavity lie within both the frequency band of the first resonant cavity and the transmission bands of the second resonant cavity, and it is these standing wave modes that support laser action when the rare-earth doped fiber is suitably pumped by pump lasers (40).

公开(公告)号：US09577399B2

公开(公告)日：2017-02-21

申请号：US14342495

申请日：2012-07-19

申请人： Kevin L. Armbruster ,  Brad D. Gilmartin ,  Peter J. Kueckendahl ,  Bernard J. Richard ,  Daniel J. Ryan

发明人： Kevin L. Armbruster ,  Brad D. Gilmartin ,  Peter J. Kueckendahl ,  Bernard J. Richard ,  Daniel J. Ryan

IPC分类号： B23K26/00 ,  H01S3/00 ,  B23K26/06 ,  H01S3/23 ,  H01S3/101 ,  B23K26/36 ,  H01S3/07 ,  H01S3/08 ,  H01S3/223 ,  H01S3/03

CPC分类号： H01S3/0071 ,  B23K26/0604 ,  B23K26/0608 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/082 ,  B23K26/355 ,  B23K26/361 ,  B23K26/362 ,  H01S3/005 ,  H01S3/03 ,  H01S3/076 ,  H01S3/08059 ,  H01S3/101 ,  H01S3/2232 ,  H01S3/23 ,  H01S3/2383

摘要： The invention relates to a marking apparatus for marking an object with laser light, comprising a plurality of lasers and a control unit for individually activating each of the lasers to emit a laser beam (90) according to a sign to be marked. A set of deflection means (30) for rearranging the laser beams (90) into a desired array of laser beams (90) is provided, the set of deflection means (30) comprises at least two deflection means (33a-i, 34a-i) per laser beam (90), in particular at least two mapping mirrors (33a-i, 34a-i) or at least one optical waveguide and one lens per laser beam (90a-i), and each deflection means (33a-i, 34a-i) is individually adjustable in its deflection direction and/or individually shiftable.

摘要翻译： 本发明涉及一种用激光对物体进行标记的标记装置，包括多个激光器和一个控制单元，用于单独地激活每个激光器以根据要标记的符号发射激光束（90）。 提供了一组用于将激光束（90）重新布置成所需阵列的激光束（90）的偏转装置（30），该偏转装置（30）包括至少两个偏转装置（33a-i，34a- i）每个激光束（90），特别是至少两个映射反射镜（33a-i，34a-i）或至少一个光波导和每个激光束（90a-i）的一个透镜，以及每个偏转装置（33a- i，34a-i）可以在其偏转方向上单独调节和/或单独移动。