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公开(公告)号：US20220149578A1
公开(公告)日：2022-05-12
申请号：US17521906
申请日：2021-11-09
申请人： TRUMPF Laser GmbH
发明人： Rainer Flaig , Andreas Enzmann , Florian Jansen
IPC分类号： H01S3/00
摘要： A beam shutter is for a laser beam. The beam shutter includes: a reflecting optical unit configured to deflect the laser beam; a holding arm, which is capable of being brought into a release position and a shut-off position and on which the reflecting optical unit is held; a sensor circuit with at least one sensor component arranged between the reflecting optical unit and the holding arm; and an evaluation device, which is configured to interact with the sensor circuit, at least in the shut-off position of the holding arm.
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公开(公告)号：US20210165135A1
公开(公告)日：2021-06-03
申请号：US17149763
申请日：2021-01-15
申请人： TRUMPF Laser GmbH
发明人： Christoph Tillkorn , Daniel Flamm , Florian Jansen , Torsten Beck , Hans-Juergen Otto , Julian Hellstern , Andreas Heimes , Maike Prossotowicz
摘要： An apparatus for combining a plurality of coherent laser beams includes at least N−1 phase setting devices configured to set a respective phase (δφn) of a respective one of the plurality of coherent laser beams, and a beam combination device configured to combine the plurality of coherent laser beams to form at least one combined laser beam. The beam combination device includes a microlens arrangement having at least two microlens arrays configured to form the at least one combined laser beam.
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公开(公告)号：US11444426B2
公开(公告)日：2022-09-13
申请号：US16244608
申请日：2019-01-10
申请人： TRUMPF LASER GMBH
发明人： Rainer Flaig , Oliver Rapp , Aleksander Budnicki , Florian Jansen , Daniel Glunk
摘要： In methods and devices for generating a laser pulse of an excitation laser that is actuated by a driver in response to a triggering time of a trigger signal, the driver actuation signal is generated taking into account the time interval between the triggering time and a preceding triggering time.
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公开(公告)号：US10998688B2
公开(公告)日：2021-05-04
申请号：US16136349
申请日：2018-09-20
申请人： TRUMPF LASER GMBH
摘要： A fiber amplification system is provided for amplifying a laser pulse signal, e.g., an oscillator signal of an oscillator device. The fiber amplification system includes a fiber pre-amplification system having a short, fundamental-mode and step-index fiber configured to pre-amplify the laser pule signal to generate a seed signal and a main amplification system having a large core fiber configured to amplify the seed signal. The short, fundamental-mode step-index fiber can have a length no longer than about 30 cm, and a mode field diameter no less than about 30 μm, e.g., in a range from 30 μm to 60 μm, as well as a high doping concentration needed to provide an absorption length no more than about 30 cm, for providing the seed signal for the large core fiber with low non-linearity.
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公开(公告)号：US20190148906A1
公开(公告)日：2019-05-16
申请号：US16244608
申请日：2019-01-10
申请人： TRUMPF LASER GMBH
发明人： Rainer Flaig , Oliver Rapp , Aleksander Budnicki , Florian Jansen , Daniel Glunk
摘要： In methods and devices for generating a laser pulse of an excitation laser that is actuated by a driver in response to a triggering time of a trigger signal, the driver actuation signal is generated taking into account the time interval between the triggering time and a preceding triggering time.
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公开(公告)号：US20190036292A1
公开(公告)日：2019-01-31
申请号：US16136349
申请日：2018-09-20
申请人： TRUMPF LASER GMBH
摘要： A fiber amplification system is provided for amplifying a laser pulse signal, e.g., an oscillator signal of an oscillator device. The fiber amplification system includes a fiber pre-amplification system having a short, fundamental-mode and step-index fiber configured to pre-amplify the laser pule signal to generate a seed signal and a main amplification system having a large core fiber configured to amplify the seed signal. The short, fundamental-mode step-index fiber can have a length no longer than about 30 cm, and a mode field diameter no less than about 30 μm, e.g., in a range from 30 μm to 60 μm, as well as a high doping concentration needed to provide an absorption length no more than about 30 cm, for providing the seed signal for the large core fiber with low non-linearity.
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公开(公告)号：US20240295696A1
公开(公告)日：2024-09-05
申请号：US18661760
申请日：2024-05-13
申请人： TRUMPF Laser GmbH
CPC分类号： G02B6/14 , H01S3/06754 , H01S3/094
摘要： A mode field adapter for adapting a mode field of an input fibre to a mode field of an output fibre includes a mode field adapter fibre. The mode field adapter fibre includes a mode field adaptation section for adapting a mode field diameter of the mode field of the input fibre to the mode field of the output fibre. The mode field adapter fibre has a length between 5 mm and 150 mm. The mode field adaptation section has a length between 5 mm and 150 mm. The mode field adapter fibre is configured to transfer light from the input fibre in a polarization maintaining manner into the output fibre.
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公开(公告)号：US11796720B2
公开(公告)日：2023-10-24
申请号：US17149763
申请日：2021-01-15
申请人： TRUMPF Laser GmbH
发明人： Christoph Tillkorn , Daniel Flamm , Florian Jansen , Torsten Beck , Hans-Juergen Otto , Julian Hellstern , Andreas Heimes , Maike Prossotowicz
CPC分类号： G02B3/0037 , G02B3/04 , G02B27/123 , G02B27/30
摘要： An apparatus for combining a plurality of coherent laser beams includes at least N−1 phase setting devices configured to set a respective phase (δφn) of a respective one of the plurality of coherent laser beams, and a beam combination device configured to combine the plurality of coherent laser beams to form at least one combined laser beam. The beam combination device includes a microlens arrangement having at least two microlens arrays configured to form the at least one combined laser beam.
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公开(公告)号：US11955761B2
公开(公告)日：2024-04-09
申请号：US17521906
申请日：2021-11-09
申请人： TRUMPF Laser GmbH
发明人： Rainer Flaig , Andreas Enzmann , Florian Jansen
IPC分类号： H01S3/00
CPC分类号： H01S3/0007 , H01S3/0014 , H01S3/005
摘要： A beam shutter is for a laser beam. The beam shutter includes: a reflecting optical unit configured to deflect the laser beam; a holding arm, which is capable of being brought into a release position and a shut-off position and on which the reflecting optical unit is held; a sensor circuit with at least one sensor component arranged between the reflecting optical unit and the holding arm; and an evaluation device, which is configured to interact with the sensor circuit, at least in the shut-off position of the holding arm.
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公开(公告)号：US10288815B2
公开(公告)日：2019-05-14
申请号：US15958280
申请日：2018-04-20
申请人： TRUMPF Laser GmbH
发明人： Martin Liermann , Andreas Enzmann , Aleksander Budnicki , Florian Jansen , Johannes Overbuschmann
摘要： Fiber mounting units for supporting an optical fiber for fiber laser systems are disclosed and include a base body having a fiber end attachment section, a fiber guide section, and a connection section arranged between the fiber end attachment section and the fiber guide section. The fiber end attachment section is adapted to attach a receiving element, which holds a fiber end portion of the optical fiber, the fiber guide section is adapted to guide a fiber central portion of the optical fiber, and the connection section is configured as a flexure bearing between the fiber end attachment section and the fiber guide section.
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