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1. 发明公开

EP4336681A3 LASER BEAMS METHODS AND SYSTEMS 审中-实审
公开(公告)号：EP4336681A3
公开(公告)日：2024-05-29
申请号：EP23220662.3
申请日：2019-05-13
申请人： Civan Advanced Technologies Ltd.
发明人： VIDNE, Yaniv , URBACH, Benayahu , VERED, Ran , JACKEL, Steven Michael , ALBECK, Yishai , GROSS, Ziv , BOUBLI, Avraham , TELLER, Gabriel , SHEKEL, Eyal
IPC分类号： H01S3/067
CPC分类号： H01S3/09408 , H01S3/094007 , H01S5/4012 , H01S3/06754 , H01S3/0092 , H01S5/0085 , H01S3/1307 , H01S3/0675 , G02F1/37 , G02F1/3544 , G02F2201/1620130101 , H01S3/2383 , H01S3/06758 , G02F1/3546
摘要： Methods and apparatuses for manipulating and modulating of laser beams. The methods and apparatuses enable activating and deactivating of laser beams, while the laser systems maintain their operating power. Further, a hybrid pump module configured to be coupled to an optical fiber having a core and at least one clad, comprising: at least one focusing lens in optical with the optical fiber; plurality of diode modules, each configured to output a multi-mode beam in optical path with the clad; and at least one core associated module, in optical path with the core, configured to provide selected functions. Further, apparatus and methods configured for frequency doubling of optical radiation.

2. 发明授权

EP2133963B1 BURST MODE RARE EARTH-DOPED FIBER AMPLIFIER 有权
公开(公告)号：EP2133963B1
公开(公告)日：2024-05-01
申请号：EP08720435.0
申请日：2008-03-12
IPC分类号： H01S3/067 , H01S3/16 , H04B10/294 , H04B10/296
CPC分类号： H01S3/06708 , H01S3/06716 , H01S3/0672 , H01S3/06729 , H04B10/2941 , H01S3/06758 , H01S3/1608 , H04B10/296

3. 发明公开

EP4346030A3 COHERENT BEAM COMBINATION SYSTEM AND CONTROL METHOD THEREOF 审中-实审
公开(公告)号：EP4346030A3
公开(公告)日：2024-04-10
申请号：EP24151595.6
申请日：2023-04-05
申请人： Leonardo S.p.a.
发明人： BISESTO, Fabrizio Giuseppe , PERNA, Alessandro , COPPOLA, Francesco , COSENTINO, Alberto
IPC分类号： H01S3/10 , H01S3/13 , H01S3/23 , G02B27/10 , G02B27/09 , G02B6/42 , G02B6/32 , G02B6/38 , H01S3/00 , H01S3/067
摘要： The coherent beam recombination (CBC) system (1) provides an output recombined beam (2) and comprises: a laser source (3) providing a source beam (8) with linewidth; a beam broadener (5) providing a broadened beam (10) from the source beam; a splitter (7) splitting the broadened beam into a plurality of secondary beams (12A-12D); a plurality of channels (20A-20D) coupled to the splitter. Each channel receives a respective secondary beam (12A-12D) and provides a respective intermediate beam (21A-21D). Each channel has an optical amplifier (40), a phase modulator (42), an optical delay line (44), and an opto-mechanical element (47). The CBC system further comprises an optical sensor (23, 24) that provides a detection signal (INT, IMG) indicative of an intensity of a received optical beam; a focusing optics (17) that receives the intermediate beams (21A-21D), provides the output recombined beam (2) from a first portion of each intermediate beam, and provides a sampled recombined beam (63) to the optical sensor from a second portion (63) of each intermediate beam. The CBC system further comprises a control unit (30) coupled to the optical sensor and the plurality of channels. The control unit comprises a phase-locking module (26) configured to: provide a plurality of phase control signals (u 1 , u 2 , u 3 , u 4 ) to the phase modulators (42); receive the detection signal (INT) from the optical sensor, indicative of an intensity of the sampled recombined beam; calculate a cost function (1) from the detection signal (INT), wherein the cost function is a function of the intensity of the sampled recombined beam; perform an optimization algorithm of the cost function, configured to maximise the intensity of the sample recombined beam; and provide a plurality of updated phase control signals, based on a result of the optimization algorithm.

4. 发明公开

EP4346030A2 COHERENT BEAM COMBINATION SYSTEM AND CONTROL METHOD THEREOF 审中-实审
公开(公告)号：EP4346030A2
公开(公告)日：2024-04-03
申请号：EP24151595.6
申请日：2023-04-05
申请人： Leonardo S.p.a.
发明人： BISESTO, Fabrizio Giuseppe , PERNA, Alessandro , COPPOLA, Francesco , COSENTINO, Alberto
IPC分类号： H01S3/067
摘要： The coherent beam recombination (CBC) system (1) provides an output recombined beam (2) and comprises: a laser source (3) providing a source beam (8) with linewidth; a beam broadener (5) providing a broadened beam (10) from the source beam; a splitter (7) splitting the broadened beam into a plurality of secondary beams (12A-12D); a plurality of channels (20A-20D) coupled to the splitter. Each channel receives a respective secondary beam (12A-12D) and provides a respective intermediate beam (21A-21D). Each channel has an optical amplifier (40), a phase modulator (42), an optical delay line (44), and an opto-mechanical element (47). The CBC system further comprises an optical sensor (23, 24) that provides a detection signal (INT, IMG) indicative of an intensity of a received optical beam; a focusing optics (17) that receives the intermediate beams (21A-21D), provides the output recombined beam (2) from a first portion of each intermediate beam, and provides a sampled recombined beam (63) to the optical sensor from a second portion (63) of each intermediate beam. The CBC system further comprises a control unit (30) coupled to the optical sensor and the plurality of channels. The control unit comprises a phase-locking module (26) configured to: provide a plurality of phase control signals (u 1 , u 2 , u 3 , u 4 ) to the phase modulators (42); receive the detection signal (INT) from the optical sensor, indicative of an intensity of the sampled recombined beam; calculate a cost function (1) from the detection signal (INT), wherein the cost function is a function of the intensity of the sampled recombined beam; perform an optimization algorithm of the cost function, configured to maximise the intensity of the sample recombined beam; and provide a plurality of updated phase control signals, based on a result of the optimization algorithm.

5. 发明公开

EP4342040A1 COHERENT BEAM COMBINATION SYSTEM AND CONTROL METHOD THEREOF 审中-实审
公开(公告)号：EP4342040A1
公开(公告)日：2024-03-27
申请号：EP23720182.7
申请日：2023-04-05
申请人： Leonardo S.p.A.
发明人： BISESTO, Fabrizio Giuseppe , PERNA, Alessandro , COPPOLA, Francesco , COSENTINO, Alberto
IPC分类号： H01S3/10 , H01S3/13 , H01S3/23 , G02B27/09 , G02B27/10 , G02B6/32 , G02B6/38 , H01S3/00 , H01S3/067

6. 发明公开

EP4336681A2 LASER BEAMS METHODS AND SYSTEMS 审中-实审
公开(公告)号：EP4336681A2
公开(公告)日：2024-03-13
申请号：EP23220662.3
申请日：2019-05-13
申请人： Civan Advanced Technologies Ltd.
发明人： VIDNE, Yaniv , URBACH, Benayahu , VERED, Ran , JACKEL, Steven Michael , ALBECK, Yishai , GROSS, Ziv , BOUBLI, Avraham , TELLER, Gabriel , SHEKEL, Eyal
IPC分类号： H01S3/067
摘要： Methods and apparatuses for manipulating and modulating of laser beams. The methods and apparatuses enable activating and deactivating of laser beams, while the laser systems maintain their operating power. Further, a hybrid pump module configured to be coupled to an optical fiber having a core and at least one clad, comprising: at least one focusing lens in optical with the optical fiber; plurality of diode modules, each configured to output a multi-mode beam in optical path with the clad; and at least one core associated module, in optical path with the core, configured to provide selected functions. Further, apparatus and methods configured for frequency doubling of optical radiation.

7. 发明公开

EP4336680A1 ERBIUM-DOPED FIBER AND PREPARATION METHOD FOR ERBIUM-DOPED FIBER 审中-实审
公开(公告)号：EP4336680A1
公开(公告)日：2024-03-13
申请号：EP22810129.1
申请日：2022-03-11
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Yehui , CAO, Shiyi , LI, Jinyan , CHU, Yingbo
IPC分类号： H01S3/067 , H01S3/16 , H04B10/2507
摘要： This application discloses an erbium-doped fiber. The erbium-doped fiber can be used in the fields of amplifiers, optical communications, rare-earth-doped fiber preparation, and the like. A fiber core of the erbium-doped fiber includes a first layer and a second layer from inside to outside. The first layer includes a center of the fiber core. The second layer is an annulus, and an outer ring of the annulus is an outer ring of the fiber core. An average doping concentration of erbium ions of the first layer is higher than an average doping concentration of erbium ions of the second layer. In this application, an ASE can be reduced by reducing a doping concentration of erbium ions of the second layer, to further reduce a noise figure of the erbium-doped fiber and improve communications quality.

8. 发明授权

EP3952036B1 ACTIVE ELEMENT ADDED-OPTICAL FIBER, RESONATOR, AND FIBER LASER DEVICE 有权
公开(公告)号：EP3952036B1
公开(公告)日：2024-03-13
申请号：EP20782588.6
申请日：2020-03-27
发明人： NISHIMURA, Ryoichi , KITAHARA Rintaro
IPC分类号： H01S3/067 , G02B6/036 , H01S3/08 , H01S3/08045 , H01S3/094 , H01S3/0941 , H01S3/16 , H01S3/17

9. 发明授权

EP3869636B1 AMPLIFICATION FIBER AND LASER BEAM EMITTING APPARATUS 有权
公开(公告)号：EP3869636B1
公开(公告)日：2024-03-13
申请号：EP21156518.9
申请日：2021-02-11
发明人： OKAZAKI, Tomoya , SAITO, Kazuya , SEKIYA, Edson Haruhico
IPC分类号： H01S3/067 , H01S3/16 , H01S3/17 , C03C13/04 , C03C3/095 , C03C3/097

10. 发明授权

EP3895261B1 LASERSYSTEM UND VERFAHREN ZUM BETREIBEN EINES SOLCHEN LASERSYSTEMS 有权转让
公开(公告)号：EP3895261B1
公开(公告)日：2024-02-07
申请号：EP19820685.6
申请日：2019-12-05
发明人： BUDNICKI, Aleksander
IPC分类号： H01S3/067

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