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公开(公告)号：US11025035B2
公开(公告)日：2021-06-01
申请号：US16245572
申请日：2019-01-11
申请人： TRUMPF LASER GMBH
发明人： Rainer Flaig , Oliver Rapp , Daniel Glunk
摘要： A laser pulse generator includes a pulse shape generation device and a clock unit. The generation device includes a pulse shape repository, a digital-to-analog converter (DAC), a first terminal for connecting a start signal line, a second terminal for connecting a clock signal line, and a third terminal for connecting a pulse line. The first and second terminals are connected to the pulse shape repository and the DAC such that when a predefined start signal is present, data is transferred from the pulse shape repository to the DAC and converted by the DAC into an output pulse, for example, at a rate of a clock signal. The output pulse is supplied at the third terminal for actuating a driver of a laser diode. The clock unit is connected to the second terminal via the clock signal line and includes a reset terminal connected to the start signal line.
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公开(公告)号：US20180354079A1
公开(公告)日：2018-12-13
申请号：US16000107
申请日：2018-06-05
申请人： TRUMPF LASER GMBH
发明人： Jochen Hutt , Rainer Flaig , Gerhard Broghammer , Michael Harteker , Marius Hezel , Matthias Fichter , Bernhard Kaiser
CPC分类号： B23K26/706 , B23K26/03 , B23K26/0648 , B23K26/1462 , B23K26/702
摘要： This disclosure relates to protective glass, for installation in laser tools of laser processing machines, comprising a transponder in which data relating to the protective glass are stored in a contactlessly readable fashion and/or can be contactlessly stored. A grip carrying the transponder is fastened as an installation aid directly on circumferential surface of the protective glass.
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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：US11735884B2
公开(公告)日：2023-08-22
申请号：US16931558
申请日：2020-07-17
申请人： TRUMPF LASER GMBH
发明人： Rainer Flaig , Stefan Rapp , Fred Stier
CPC分类号： H01S3/10015 , H01S3/10046 , H01S3/1302 , H01S3/2391
摘要： Methods and laser systems are disclosed for generating amplified output laser pulses with individually specified pulse energies and/or pulse shapes at individually specified time points at an output by providing a first pulse sequence of input laser pulses with a same pulse energy and a same temporal pulse distance smaller than a temporal pulse distance between adjacent output laser pulses, selecting input laser pulses arriving at the output at or close to the specified time points to form a second pulse sequence of input laser pulses, coupling at least one sacrificial laser pulse (energy balance or temporal balance) into the second pulse sequence, amplifying the second pulse sequence of input laser pulses with the sacrificial laser pulse, and coupling out the amplified sacrificial laser pulse from the amplified second pulse sequence upstream of the output to obtain the amplified output laser pulses.
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公开(公告)号：US20220029374A1
公开(公告)日：2022-01-27
申请号：US17497990
申请日：2021-10-11
申请人： TRUMPF Laser GmbH
摘要： A method generates laser pulses by varying a Q-factor in a resonator. The method includes generating the laser pulses by controlling an optical modulator with a control signal for switching over between a first operating state of the optical modulator for generating a first Q-factor in the resonator and a second operating state of the optical modulator for generating a second Q-factor in the resonator. The second Q-factor is different than the first Q-factor. In order to generate a sequence of the laser pulses in which first laser pulses alternate with second laser pulses different than the first laser pulses, the optical modulator is controlled differently in each case alternately with the control signal for generating a respective first laser pulse, of the first laser pulses, and a respective second laser pulse, of the second laser pulses.
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公开(公告)号：US11165214B2
公开(公告)日：2021-11-02
申请号：US16720441
申请日：2019-12-19
申请人： TRUMPF LASER GMBH
发明人： Rainer Flaig , Stefan Rapp , Fred Stier
摘要： Method and systems are disclosed for generating amplified output laser pulses with individually predefined pulse energies at individually predefined times at an output by providing a pulse sequence of input laser pulses having the same pulse energy and the same temporal pulse interval smaller than the temporal pulse interval between two adjacent output laser pulses, selecting the input laser pulses that arrive at the output at or about the predefined times, amplifying the selected input laser pulses with an optical amplifier, wherein at least one sacrificial laser pulse is inserted into the pulse sequence of the selected input laser pulses before the subsequent one of the two successive input laser pulses to be amplified, and reducing the pulse energies of the amplified input laser pulses to predefined pulse energies by time-controlled partial decoupling depending on their pulse intervals from the corresponding immediately preceding amplified input or sacrificial laser pulse.
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公开(公告)号：US20230387640A1
公开(公告)日：2023-11-30
申请号：US18448217
申请日：2023-08-11
申请人： TRUMPF Laser GmbH
发明人： Jonathan Brons , Rainer Flaig , Dirk Sutter , Ivo Zawischa
CPC分类号： H01S3/0092 , H01S3/10015 , H01S3/0085 , H01S3/1302
摘要： A method for generating output laser pulses from input laser pulses includes causing the input laser pulses to temporally successively pass through an optical component with temperature-dependent power efficiency. The optical component is heated by the passing of the input laser pulses. The input laser pulses emerge from the optical component as output laser pulses. The method further includes calculating a current temperature or a current temperature difference of the optical component, or a temperature-dependent current parameter based on all preceding input laser pulses or output laser pulses that have contributed to the heating of the optical component, and setting a power of a current input laser pulse based on the calculated current temperature, or the calculated current temperature difference, or the calculated current parameter, so that an associated output laser pulse has a pulse energy that deviates from a predefined pulse energy by less than 5%.
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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：US11247299B2
公开(公告)日：2022-02-15
申请号：US16000107
申请日：2018-06-05
申请人： TRUMPF LASER GMBH
发明人： Jochen Hutt , Rainer Flaig , Gerhard Broghammer , Michael Harteker , Marius Hezel , Matthias Fichter , Bernhard Kaiser
摘要： This disclosure relates to protective glass, for installation in laser tools of laser processing machines, comprising a transponder in which data relating to the protective glass are stored in a contactlessly readable fashion and/or can be contactlessly stored. A grip carrying the transponder is fastened as an installation aid directly on circumferential surface of the protective glass.
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公开(公告)号：US20190148910A1
公开(公告)日：2019-05-16
申请号：US16245572
申请日：2019-01-11
申请人： TRUMPF LASER GMBH
发明人： Rainer Flaig , Oliver Rapp , Daniel Glunk
摘要： A laser pulse generator includes a pulse shape generation device and a clock unit. The generation device includes a pulse shape repository, a digital-to-analog converter (DAC), a first terminal for connecting a start signal line, a second terminal for connecting a clock signal line, and a third terminal for connecting a pulse line. The first and second terminals are connected to the pulse shape repository and the DAC such that when a predefined start signal is present, data is transferred from the pulse shape repository to the DAC and converted by the DAC into an output pulse, for example, at a rate of a clock signal. The output pulse is supplied at the third terminal for actuating a driver of a laser diode. The clock unit is connected to the second terminal via the clock signal line and includes a reset terminal connected to the start signal line.
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