公开(公告)号：EP3590160B1

公开(公告)日：2024-05-01

申请号：EP18712091.0

申请日：2018-03-02

IPC分类号： H01S3/23 ,  H01S3/13

CPC分类号： H01S3/2308 ,  H01S3/2383 ,  H01S3/10053

公开(公告)号：EP3342011A2

公开(公告)日：2018-07-04

申请号：EP16831541.4

申请日：2016-06-21

申请人： Raytheon Company

发明人： FILGAS, David, M.

IPC分类号： H01S3/083 ,  H01S3/07 ,  H01S3/10 ,  H01S3/13 ,  H01S3/067 ,  H01S3/063 ,  H01S3/08 ,  H01S3/106 ,  H01S3/136 ,  H01S3/105

CPC分类号： H01S3/10023 ,  H01S3/0632 ,  H01S3/06791 ,  H01S3/07 ,  H01S3/08013 ,  H01S3/0805 ,  H01S3/08072 ,  H01S3/083 ,  H01S3/1003 ,  H01S3/10053 ,  H01S3/10084 ,  H01S3/10092 ,  H01S3/105 ,  H01S3/1053 ,  H01S3/1065 ,  H01S3/1307 ,  H01S3/136

摘要： A self-seeding high power laser includes a spatial filter; an optical relay for circulating a low power un-distorted optical beam, an adaptive optic optically coupled to the output of the optical relay; a high power amplifier optically coupled to an output of the adaptive optic phase control element, wherein adaptively modified phasefront injected by the adaptive optic cancels distortions produced by the high power amplifier; a beamsplitter optically coupled to the high power amplifier for splitting the high power un-distorted optical beam into a high power output beam as the output of the self-seeding high power laser, and a low power beam; a focusing lens; a detector for detecting a metric of the low power beam; and a controller for adaptively controlling the adaptive optic to maximize the power of the high power amplifier, based on the detected metric.

公开(公告)号：EP3244498A4

公开(公告)日：2018-03-07

申请号：EP16735100

申请日：2016-01-08

申请人： MITSUBISHI ELECTRIC CORP

发明人： SHOHDA FUMIO ,  YANAGISAWA TAKAYUKI ,  HIROSAWA KENICHI ,  KANNARI FUMIHIKO

IPC分类号： G02F1/377 ,  H01S3/04 ,  H01S3/042 ,  H01S3/08 ,  H01S3/0941 ,  H01S3/109 ,  H01S3/13 ,  H01S5/14 ,  H01S5/40

CPC分类号： H01S3/1307 ,  G02F1/37 ,  G02F1/377 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0632 ,  H01S3/08072 ,  H01S3/08077 ,  H01S3/094049 ,  H01S3/0941 ,  H01S3/10053 ,  H01S3/109 ,  H01S3/23 ,  H01S3/2383 ,  H01S3/2391 ,  H01S5/4062

摘要： A device includes: at least one laser element (1) with light emitting points to output fundamental waves in a one-dimensional array; a wavelength converting element (2) to carry out wavelength conversion of the incident fundamental waves, and to output wavelength converted light rays; and an output mirror (3) to reflect the fundamental waves, and to transmit the wavelength converted light rays resulting from the wavelength conversion by the wavelength converting element (2). The wavelength converting element (2) is disposed between the laser element (1) and the output mirror (3), and the distance between the position of a waist (103) of the fundamental waves output from the laser element (1) and the output mirror (3) is set in accordance with a Talbot condition under which the adjacent light emitting points cause phase synchronization with each other.

公开(公告)号：EP2425504B1

公开(公告)日：2017-12-20

申请号：EP10720139.4

申请日：2010-04-28

申请人： Deutsches Zentrum für Luft- und Raumfahrt e.V.

发明人： GIESEN, Adolf ,  MENDE, Jens ,  SPINDLER, Gerhard ,  SPEISER, Jochen

IPC分类号： H01S3/06 ,  H01S3/07 ,  H01S3/08 ,  H01S3/081 ,  H01S3/083 ,  H01S3/10

CPC分类号： H01S3/07 ,  H01S3/0604 ,  H01S3/0615 ,  H01S3/0621 ,  H01S3/08 ,  H01S3/0804 ,  H01S3/08072 ,  H01S3/081 ,  H01S3/0818 ,  H01S3/083 ,  H01S3/10053

公开(公告)号：EP3245490A1

公开(公告)日：2017-11-22

申请号：EP16700494.4

申请日：2016-01-14

申请人： Qinetiq Limited

发明人： LEWIN, Andrew Charles ,  COOPER, Martin James ,  ORCHARD, David Arthur

IPC分类号： G01H9/00 ,  G01V1/38 ,  G01D5/353

CPC分类号： G01H9/004 ,  G01D5/35325 ,  G01D5/35383 ,  G01V1/38 ,  G02B6/4213 ,  G02B6/4214 ,  G02B6/4246 ,  H01S3/0675 ,  H01S3/094003 ,  H01S3/10053 ,  H01S3/1608

摘要： Some embodiments are directed to a multiplexed fiber sensor for a fiber optic hydrophone array, including a signal receiver configured to receive a signal from the fiber optic hydrophone sensor array and an interferometer. The interferometer is configured to produce a first signal component and a second signal component from the signal received from the hydrophone array, and also provided with a first polarisation controller configured to control the polarisation of the first signal component and a second polarisation controller configured to control the polarisation of the second signal component. A modulated carrier signal generator configured to generate a modulated carrier signal component based on the first signal component is also provided. A detector configured to output a demodulated output signal from the modulated signal component and the second signal component is included, wherein the modulated signal component and the second signal component output separately from the interferometer.

公开(公告)号：EP2972409A4

公开(公告)日：2017-01-25

申请号：EP14769313

申请日：2014-03-12

申请人： DIGITAL SIGNAL CORP

发明人： BELSLEY KENDALL L ,  SCHULZ STEPHAN ,  SEBASTIAN RICHARD L

IPC分类号： H01S3/13 ,  H01S3/00 ,  H01S3/10

CPC分类号： G01S7/4911 ,  G01J9/00 ,  G01J9/02 ,  G01S7/4915 ,  G01S7/497 ,  G01S17/325 ,  G02B26/06 ,  H01S3/0085 ,  H01S3/10053 ,  H01S3/1307

公开(公告)号：EP2751616A4

公开(公告)日：2015-12-02

申请号：EP12827247

申请日：2012-08-28

申请人： GENIA PHOTONICS INC

发明人： VILLENEUVE ALAIN

IPC分类号： H01S3/23 ,  G02F1/35 ,  H01S3/00 ,  H01S3/10

CPC分类号： G02F1/353 ,  G02F1/3534 ,  G02F1/3536 ,  G02F2201/20 ,  H01S3/0092 ,  H01S3/10053 ,  H01S3/11 ,  H01S3/2391

公开(公告)号：EP2806302A4

公开(公告)日：2015-09-23

申请号：EP13738607

申请日：2013-01-17

申请人： MITSUBISHI HEAVY IND LTD ,  INST LASER TECHNOLOGY ,  UNIV OSAKA

发明人： HAMAMOTO KOICHI ,  YAMADA TAKAHIRO ,  CHOSROWJAN HAIK ,  FURUSE HIROAKI ,  FUJITA MASAYUKI ,  IZAWA YASUKAZU ,  KAWANAKA JUNJI ,  MIYANAGA NORIAKI

IPC分类号： G02B26/06 ,  G01J9/02 ,  G02F1/01 ,  H01S3/23

CPC分类号： H01S3/10053 ,  G01J9/02 ,  G02B26/06 ,  G02B27/0905 ,  G02F1/0121 ,  G02F1/21 ,  H01S3/0085 ,  H01S3/1307 ,  H01S3/2308 ,  H01S3/2383

摘要： A multi-beam combining apparatus includes a phase shifting section, a superposing section, an observing section and a phase control section. The phase shifting section generates a plurality of phase-shifted laser beams by shifting the phase of each of the plurality of laser beams. The superposing section generates a plurality of superposed laser beam by superposing the reference laser beam and each of the plurality of phase-shifted laser beams. The observing section generates interference pattern data of a spatial interference pattern which appears when observing each of the superposed laser beams. The phase control section carries out a feedback control of the phase shifts in the phase shifting section based on the interference pattern data obtained for every superposed laser beam, and thereby sets the plurality of phase-shifted laser beams to desired states.

公开(公告)号：EP2751616A1

公开(公告)日：2014-07-09

申请号：EP12827247.3

申请日：2012-08-28

申请人： Genia Photonics Inc.

发明人： VILLENEUVE, Alain

IPC分类号： G02F1/365 ,  G02B6/36 ,  G02F1/355

CPC分类号： G02F1/353 ,  G02F1/3534 ,  G02F1/3536 ,  G02F2201/20 ,  H01S3/0092 ,  H01S3/10053 ,  H01S3/11 ,  H01S3/2391

摘要： A system (100) for spatially addressing the synchronization of two light pulses (118, 120) having a respective wavelength. The system (100) includes two light sources (110, 114), each one generating one of the light pulses (118, 120) in response to receiving a respective source trigger. The light pulses (118, 120) are combined and then distributed in many light guiding elements (104) in which propagation at the first and second wavelength takes a different amount of time, the differences between the propagation times at the first and second wavelengths differing between the light guiding elements (104). The source triggers are separated from each other by a variable delay in order to cause simultaneous arrival of the first and second pulses (118, 120) at the output of only one of the light guiding elements (104).

公开(公告)号：EP1654790A2

公开(公告)日：2006-05-10

申请号：EP04749759.9

申请日：2004-04-05

申请人： Optovia Corporation

发明人： KHAZAEI, Hamid, R. ,  SINGH, Harmeet ,  SQUIRES, Emily, M. ,  LEWIS, David, Kirk

IPC分类号： H01S3/30

CPC分类号： H01S3/067 ,  H01S3/08027 ,  H01S3/08086 ,  H01S3/10053 ,  H01S3/137 ,  H01S3/2383

摘要： An optical system (30, 40, 50, 60, 70, 80, 90, 100, 130, 140, 150, 160, 170, 230, 3000, 4000, 5000, 6000, and 7000) has a transmission filter device (34, 44, 54, 64, 74, 84, 94, 104, 134, 144, 154, 164, 174, 234, 3500, 4500, 5400, 6500, 7500), a feedback mechanism (38, 48, 58, 68, 78, 88a-88d, 98a-98b, 105, 135, 148, 158, 168a-168b, 178, 238, 3800, 4800, 5800, 6800, 7800), and one or more radiation sources (32, 42a-42b, 52a-52d, 62a-62b, 72a-72d, 82a-82d, 92a-92d, 102a-102d, 132a-132d, 142a-142b, 152a-152b, 162a-162b, 172a-172d, 232a-232d, 3200a-3200n, 4200a-4200n, 5200, 6200a-6200n, 7200a-7200n). Each radiation source generates an output signal with a predetermined wavelength band and polarization and is coupled to a separate input port of the transmission filter device. The transmission filter device, which is responsive to output signal from each radiation source, generates an output signal from at least one output port thereof. The feedback mechanism is coupled to at least one output port of the transmission filter device for providing a feedback signal that is directed back through the transmission filter device device to each of the radiation sources for stabilizing each of the radiation sources. The apparatus is polarization maintaining wherein the one or more radiation sources, the transmission filter device, and the feedback mechanism are interconnected such that principle axes of polarization thereof are substantially aligned.