公开(公告)号：US11025035B2

公开(公告)日：2021-06-01

申请号：US16245572

申请日：2019-01-11

Applicant: TRUMPF LASER GMBH

Inventor： Rainer Flaig ,  Oliver Rapp ,  Daniel Glunk

IPC: H01S5/042 ,  H01S5/06 ,  H01S5/062

Abstract: 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.

公开(公告)号：US20180354079A1

公开(公告)日：2018-12-13

申请号：US16000107

申请日：2018-06-05

Applicant: TRUMPF LASER GMBH

Inventor： Jochen Hutt ,  Rainer Flaig ,  Gerhard Broghammer ,  Michael Harteker ,  Marius Hezel ,  Matthias Fichter ,  Bernhard Kaiser

IPC: B23K26/70 ,  B23K26/03

CPC classification number: B23K26/706 ,  B23K26/03 ,  B23K26/0648 ,  B23K26/1462 ,  B23K26/702

Abstract: 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.

公开(公告)号：US20240380170A1

公开(公告)日：2024-11-14

申请号：US18780536

申请日：2024-07-23

Applicant: TRUMPF Laser GmbH

Inventor： Raphael Scelle ,  Aleksander Budnicki ,  Florian Jansen ,  Markus Ginter ,  Jonathan Brons ,  Rainer Flaig

IPC: H01S3/00

Abstract: A method for generating output laser pulses includes generating input laser pulses having an equal pulse duration, and coupling the input laser pulses into an optical actuator. A dispersion of the optical actuator is settable. The method further includes setting the dispersion of the optical actuator for a current input laser pulse, so that a pulse duration change caused by a change of a temperature of at least one component and/or by a change of an ambient temperature is compensated for, and that an associated output laser pulse has a pulse duration corresponding or nearly corresponding to a target pulse duration.

公开(公告)号：US20230387640A1

公开(公告)日：2023-11-30

申请号：US18448217

申请日：2023-08-11

Applicant: TRUMPF Laser GmbH

Inventor： Jonathan Brons ,  Rainer Flaig ,  Dirk Sutter ,  Ivo Zawischa

IPC: H01S3/00 ,  H01S3/10 ,  H01S3/13

CPC classification number: H01S3/0092 ,  H01S3/10015 ,  H01S3/0085 ,  H01S3/1302

Abstract: 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%.

公开(公告)号：US11444426B2

公开(公告)日：2022-09-13

申请号：US16244608

申请日：2019-01-10

Applicant: TRUMPF LASER GMBH

Inventor： Rainer Flaig ,  Oliver Rapp ,  Aleksander Budnicki ,  Florian Jansen ,  Daniel Glunk

IPC: H01S3/10 ,  H01S3/13 ,  H01S5/042 ,  H01S5/062 ,  H01S3/102 ,  H01S3/23

Abstract: 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.

公开(公告)号：US11247299B2

公开(公告)日：2022-02-15

申请号：US16000107

申请日：2018-06-05

Applicant: TRUMPF LASER GMBH

Inventor： Jochen Hutt ,  Rainer Flaig ,  Gerhard Broghammer ,  Michael Harteker ,  Marius Hezel ,  Matthias Fichter ,  Bernhard Kaiser

IPC: B23K26/70 ,  B23K26/03 ,  B23K26/06 ,  B23K26/14

Abstract: 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.

公开(公告)号：US20190148910A1

公开(公告)日：2019-05-16

申请号：US16245572

申请日：2019-01-11

Applicant: TRUMPF LASER GMBH

Inventor： Rainer Flaig ,  Oliver Rapp ,  Daniel Glunk

IPC: H01S5/042 ,  H01S5/06 ,  H01S5/062

Abstract: 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.

公开(公告)号：US20190148906A1

公开(公告)日：2019-05-16

申请号：US16244608

申请日：2019-01-10

Applicant: TRUMPF LASER GMBH

Inventor： Rainer Flaig ,  Oliver Rapp ,  Aleksander Budnicki ,  Florian Jansen ,  Daniel Glunk

IPC: H01S3/10 ,  H01S3/13 ,  H01S5/042 ,  H01S5/062 ,  H01S3/23 ,  H01S3/102

Abstract: 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.

公开(公告)号：US11955761B2

公开(公告)日：2024-04-09

申请号：US17521906

申请日：2021-11-09

Applicant: TRUMPF Laser GmbH

Inventor： Rainer Flaig ,  Andreas Enzmann ,  Florian Jansen

IPC: H01S3/00

CPC classification number: H01S3/0007 ,  H01S3/0014 ,  H01S3/005

Abstract: 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.

公开(公告)号：US11735884B2

公开(公告)日：2023-08-22

申请号：US16931558

申请日：2020-07-17

Applicant: TRUMPF LASER GMBH

Inventor： Rainer Flaig ,  Stefan Rapp ,  Fred Stier

IPC: H01S3/00 ,  H01S3/10 ,  H01S3/13 ,  H01S3/23

CPC classification number: H01S3/10015 ,  H01S3/10046 ,  H01S3/1302 ,  H01S3/2391

Abstract: 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.