公开(公告)号：EP3999906B1

公开(公告)日：2024-06-26

申请号：EP20739424.8

申请日：2020-07-16

IPC: G02F1/35 ,  H01S3/30

CPC classification number: H01S2301/08520130101 ,  H01S3/302 ,  G02F1/353 ,  H01S3/06754 ,  H01S3/0057 ,  H01S3/1603 ,  H01S3/0092

公开(公告)号：EP2371784B1

公开(公告)日：2018-05-16

申请号：EP09834518.4

申请日：2009-12-25

Applicant: Inter-University Research Institute Corporation National Institutes of Natural Sciences ,  Genesis Research Institute, Incorporated

Inventor： TAIRA, Takunori ,  AKIYAMA, Jun ,  ASAI, Shigeo ,  HARA, Kunihiko

IPC: B28B1/00 ,  C04B35/447 ,  C04B35/50 ,  C04B35/645 ,  C30B29/22 ,  C30B29/30 ,  C30B30/04 ,  C30B28/00 ,  H01S3/16

CPC classification number: H01F41/0253 ,  B28B1/00 ,  B33Y40/00 ,  C04B35/447 ,  C04B35/50 ,  C04B35/6455 ,  C04B2235/3224 ,  C04B2235/6027 ,  C04B2235/605 ,  C04B2235/9653 ,  C30B28/00 ,  C30B29/22 ,  C30B29/30 ,  C30B30/04 ,  H01S3/1603 ,  H01S3/1611 ,  H01S3/1618 ,  H01S3/1671 ,  H01S3/1673 ,  H01S3/1685

Abstract: Upon producing a transparent polycrystalline material, a suspension liquid (or slurry 1) is prepared, the suspension liquid being made by dispersing a raw-material powder in a solution, the raw-material powder including optically anisotropic single-crystalline particles to which a rare-earth element is added. A formed body is obtained from the suspension liquid by means of carrying out slip casting in a space with a magnetic field applied. On this occasion, while doing a temperature control so that the single-crystalline particles demonstrate predetermined magnetic anisotropy, one of static magnetic fields and rotary magnetic fields is selected in compliance with a direction of an axis of easy magnetization in the single-crystalline particles, and is then applied to them. A transparent polycrystalline material is obtained by sintering the formed body, the transparent polycrystalline material having a polycrystalline structure whose crystal orientation is controlled. In this calcination step, after subjecting the formed body to primary sintering at a temperature of 1, 600-1, 900 K, the resulting primarily-sintered body undergoes hot-isotropic-press sintering (or HIP processing) at a temperature of 1,600-1,900 K.

公开(公告)号：EP3257119A1

公开(公告)日：2017-12-20

申请号：EP15709850.0

申请日：2015-02-12

Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Friedrich-Schiller-Universität Jena

Inventor： OTTO, Hans Jürgen ,  JAUREGUI MISAS, César ,  LIMPERT, Jens ,  TÜNNERMANN, Andreas

IPC: H01S3/067

CPC classification number: H01S3/1603 ,  H01S3/06708 ,  H01S3/06716 ,  H01S3/06754 ,  H01S3/08072 ,  H01S3/091 ,  H01S3/094003

Abstract: The invention relates to an optical waveguide (3) as laser medium or amplifier medium for high-performance operation, wherein the optical waveguide (3) is an optical fibre, the light-guiding core of which is doped with rare earth ions at least in some areas. The problem addressed by the invention is that of providing an optical waveguide as laser medium or amplifier medium and a laser/amplifier combination implemented thereby, in which the output signal of the laser medium or amplifier medium is better stabilised. This problem is solved according to the invention in that the maximum small signal amplification of the optical waveguide (1), due to the concentration of the rare earth ions and/or the distribution thereof in the light-guiding core, is up to 60 d B, preferably up to 50 d B, more preferably up to 40 d B, particularly preferably up to 30 d B. The invention further relates to the use of such an optical waveguide as amplifier fibre (3) in a laser/amplifier combination.

公开(公告)号：EP3248544A1

公开(公告)日：2017-11-29

申请号：EP16740127.2

申请日：2016-01-19

Applicant: National Institutes for Quantum and Radiological Science and Technology

Inventor： YAMAKAWA, Koichi

IPC: A61B5/1455

CPC classification number: A61B5/1455 ,  A61B5/14532 ,  A61B2090/306 ,  A61B2090/3614 ,  A61B2562/0233 ,  G02F1/3501 ,  G02F1/39 ,  G02F2001/3507 ,  H01S3/1603 ,  H01S3/1643 ,  H01S3/2232

Abstract: The concentration of substance in blood is measured non-invasively, with high accuracy and with simple configuration. Laser light 100 generated by a light source 10 is locally irradiated on the body epithelium F of a subject, and the resulting diffused reflected light 200 is detected by a light detector 40. The laser light 100 has a wavelength of 9.26 µm. The laser light 100 is generated by converting and amplifying pulsed excitation light 101 from an excitation light source 11 to a long wavelength. A plate-shaped window 300 that is transparent to mid-infrared light is brought in close contact with the body epithelium F. The glucose concentration in interstitial fluid can be calculated using normalized light intensity calculated from a signal ratio of signals from a monitoring light detector 16 and light detector 40.

Abstract translation: 血液中物质的浓度是非侵入性测量的，准确度高，结构简单。 由光源10产生的激光100被局部地照射在对象的身体上皮F上，并且由光检测器40检测所得到的扩散反射光200.激光100具有9.26μm的波长。 通过将来自激发光源11的脉冲激发光101转换并放大到长波长来产生激光100。 对中红外光透明的板状窗300与身体上皮F紧密接触。组织液中的葡萄糖浓度可以使用由来自监测光检测器的信号的信号比计算出的归一化光强来计算 16和光检测器40。

公开(公告)号：EP2929602A4

公开(公告)日：2016-12-21

申请号：EP13860660

申请日：2013-12-07

Applicant: FORO ENERGY INC

Inventor： ZEDIKER MARK S ,  FAIRCLOTH BRIAN O ,  RINZLER CHARLES C

IPC: H01S3/00 ,  B23K26/06 ,  B23K26/38 ,  B23K26/382 ,  E21B7/14 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/23 ,  H01S3/30

CPC classification number: H01S3/302 ,  B23K26/06 ,  B23K26/38 ,  B23K26/382 ,  E21B7/14 ,  E21B7/15 ,  E21B29/02 ,  E21B29/06 ,  E21B43/11 ,  E21B43/2405 ,  H01S3/06708 ,  H01S3/0675 ,  H01S3/094007 ,  H01S3/094015 ,  H01S3/094042 ,  H01S3/094046 ,  H01S3/094092 ,  H01S3/094096 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/1603 ,  H01S3/1616 ,  H01S3/1693 ,  H01S3/1695 ,  H01S3/2383

Abstract: High power lasers and high power laser systems that provide high power laser beams having preselected wavelengths and characteristics to optimize or enhance laser beam performance in predetermined environments, conditions and use requirements. In particular, lasers, methods and systems that relate to, among other things, Raman lasers, up conversion lasers, wavelength conversion laser systems, and multi-laser systems that are configured to match and create specific and predetermined wavelengths at specific points along an optical path having varying requirements along that path.

公开(公告)号：EP2617106A2

公开(公告)日：2013-07-24

申请号：EP11838909.7

申请日：2011-11-04

Applicant: Lawrence Livermore National Security, LLC

Inventor： BAYRAMIAN, Andrew James ,  MANES, Kenneth Rene ,  DERI, Robert J. ,  ERLANDSON, Alvin Charles ,  CAIRD, John Allyn ,  SPAETH, Mary Louise

IPC: H01S3/00

CPC classification number: H01S3/094 ,  H01S3/005 ,  H01S3/0092 ,  H01S3/0404 ,  H01S3/042 ,  H01S3/0606 ,  H01S3/0612 ,  H01S3/07 ,  H01S3/094057 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/1603 ,  H01S3/1608 ,  H01S3/1611 ,  H01S3/1616 ,  H01S3/1618 ,  H01S3/1643 ,  H01S3/165 ,  H01S3/17 ,  H01S3/2316 ,  H01S3/2341 ,  H01S5/4012 ,  H01S5/4025 ,  H01S2301/02

Abstract: An optical gain architecture includes a pump source and a pump aperture. The architecture also includes a gain region including a gain element operable to amplify light at a laser wavelength. The gain region is characterized by a first side intersecting an optical path, a second side opposing the first side, a third side adjacent the first and second sides, and a fourth side opposing the third side. The architecture further includes a dichroic section disposed between the pump aperture and the first side of the gain region. The dichroic section is characterized by low reflectance at a pump wavelength and high reflectance at the laser wavelength. The architecture additionally includes a first cladding section proximate to the third side of the gain region and a second cladding section proximate to the fourth side of the gain region.

公开(公告)号：EP2457882A1

公开(公告)日：2012-05-30

申请号：EP11190841.4

申请日：2011-11-25

Applicant: Draka Comteq B.V.

Inventor： Burov, Ekaterina ,  Melin, Gilles ,  Pastouret, Alain ,  Boivin, David

IPC: C03B37/01 ,  H01S3/067 ,  G02B6/02

CPC classification number: C03B37/0122 ,  C03B37/016 ,  C03B37/018 ,  C03B37/01838 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/14 ,  C03B2203/23 ,  C03B2203/42 ,  C03C13/045 ,  G02B6/0229 ,  G02B6/02338 ,  G02B6/02347 ,  G02B6/02357 ,  G02B6/02361 ,  H01S3/06741 ,  H01S3/1603 ,  H01S3/169

Abstract: The invention relates to an optical fiber comprising, from the center toward the periphery:
• a central core (11) adapted to transmit and to amplify an optical signal, the central core (11) consisting of a core matrix comprising nanoparticles, the nanoparticles being formed of a nanoparticle matrix comprising dopants from the rare earths group;
• an optical cladding surrounding the central core (11) adapted to confine the optical signal transmitted by the central core (11), the optical cladding having a plurality of holes (10) that extend along the length of the optical fiber, the holes (10) being separated from each other by a pitch (Λ hole ); and
• an outer cladding.

Abstract translation: 本发明涉及一种光纤，包括从中心向外围的光纤，中心芯（11），适于透射和放大光信号，所述中心芯（11）由包含纳米颗粒的芯基体组成，所述纳米颗粒 由包含来自稀土组的掺杂剂的纳米颗粒基质形成; 围绕中心芯（11）的光学包层适于限制由中心芯（11）传输的光信号，光学包层具有沿光纤长度延伸的多个孔（10），孔 （10）通过间距（>孔）彼此分离; 和一个外包层。

公开(公告)号：EP2387118A1

公开(公告)日：2011-11-16

申请号：EP10729193.2

申请日：2010-01-05

Applicant: Fujikura, Ltd.

Inventor： MIYAUCHI Hidenori

IPC: H01S3/10

CPC classification number: H01S3/06758 ,  H01S3/094007 ,  H01S3/10007 ,  H01S3/10069 ,  H01S3/1301 ,  H01S3/1603 ,  H01S3/1608 ,  H01S3/1618 ,  H01S2301/02

Abstract: An object of the present invention is to provide an optical fiber amplifier capable of suppressing oscillation of ASE. The optical fiber amplifier includes a second amplifier fiber 30 doped with a rare earth element; a second pumping source 26 that supplies pump light to the second amplifier fiber 30; a storage unit 40 for storing a relationship between oscillation threshold pump power and temperature of the second amplifier fiber 30, the oscillation threshold pump power being power of the pump light which causes oscillation of ASE in a different wavelength range from a signal wavelength range produced by the second amplifier fiber 30; and a temperature controller 38 for controlling the temperature of the second amplifier fiber 30 so that the oscillation threshold pump power is higher than the power of the pump light outputted by the second pumping source 26, by referring to the relationship stored in the storage unit 40.

Abstract translation: 本发明的目的是提供一种能够抑制ASE的振荡的光纤放大器。 光纤放大器包括掺杂有稀土元素的第二放大器光纤30; 将泵浦光提供给第二放大器光纤30的第二泵浦源26; 用于存储振荡阈值泵浦功率和第二放大器光纤30的温度之间的关系的存储单元40，作为泵浦光的功率的振荡阈值泵浦功率，其引起ASE在不同波长范围内从由 第二放大器光纤30; 以及温度控制器38，用于通过参照存储在存储单元40中的关系来控制第二放大器光纤30的温度，使得振荡阈值泵浦功率高于由第二泵浦源26输出的泵浦光的功率 。

公开(公告)号：EP2382507A1

公开(公告)日：2011-11-02

申请号：EP10702273.3

申请日：2010-01-26

Applicant: Centre National de la Recherche Scientifique CNRS

Inventor： BOULLET, Johan ,  CONSTANT, Eric ,  CORMIER, Eric

IPC: G02F1/39 ,  H01S3/00 ,  H01S3/23 ,  H01S3/067

CPC classification number: G02F1/39 ,  H01S3/0057 ,  H01S3/06754 ,  H01S3/1603 ,  H01S3/2316

Abstract: The present invention generally relates to coherent, ultra-short ultraviolet (UV) or extended ultraviolet (XUV) pulse generation, and more particularly, to a highly bright re-focusable source capable of producing, at an adjustable rate comprised between 50 kHz and a few megahertz, femtosecond long pulses, in the ultraviolet or extended ultraviolet range. It comprises: - a fiber laser device (10) adapted to produce laser beam comprising pulses,- - an harmonic generator device (20) comprising an interaction medium. The harmonic generator device (20) and the fiber laser device (10) are coupled so that the laser beam hits the interaction medium with a power of at least 10 13 W/cm2, so as to generate said UV-XUV pulses.

公开(公告)号：EP1056170B1

公开(公告)日：2007-11-28

申请号：EP00110971.9

申请日：2000-05-26

Applicant: KYOCERA CORPORATION

Inventor： Okuda, Michitaka, Kyocera Corp., Yokohama Office ,  Ajima, Hiromi, Kyocera Corp., Yokohama Office ,  Takei, Yusuke, Kyocera Corp., Yokohama Office ,  Fujimoto, Hiroshi, Kyocera Corp., Yokohama Office ,  Miyake, Kazuyuki, Mitsubishi Cable, Ind. Ltd., ,  Kawamura, Tatsuhiro, Mitsubishi Cable, Ind. Ltd., ,  Sudo, Yasuhide, Mitsubishi Cable, Ind. Ltd.,

IPC: H01S3/067 ,  G02B6/28

CPC classification number: G02B6/2835 ,  H01S3/06708 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/1601 ,  H01S3/1603