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1.发明授权公开(公告)号：US12105331B2
公开(公告)日：2024-10-01
申请号：US17714155
申请日：2022-04-06
申请人： TRUMPF Laser GmbH
CPC分类号： G02B6/4206 , G02B6/032 , H01S3/0057
摘要： A device for transporting pulsed laser radiation includes a pulse duration setting device configured for setting a transport pulse duration of the pulsed laser radiation. the device further includes a hollow core optical fiber having a hollow core surrounded by a material. The hollow core optical fiber is configured to be operated with beam path parameter values that are present at the first fiber end and lie in a target tolerance range. The device further includes a fiber input coupling device configured to couple the pulsed laser radiation into the hollow core optical fiber with the beam path parameter values that lie in the target tolerance range. the transport pulse duration is set so that input coupling of the pulsed laser radiation into the hollow core is provided for all of the beam path parameter values in the target tolerance range.
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公开(公告)号：US20240307996A1
公开(公告)日：2024-09-19
申请号：US18674985
申请日：2024-05-27
申请人： TRUMPF Laser GmbH
发明人： Rainer Flaig , Juergen Vogel , Michael Kraus , Martin Stambke , Martin Keller , Ralf Bartmuss , Thomas Notheis , Jan-Patrick Hermani
IPC分类号： B23K26/03
CPC分类号： B23K26/03
摘要： A method for controlling a laser processing machine includes providing the laser processing machine. The laser processing machine includes a laser source, a process optical unit, and a control device. The method further includes creating redundant data of the laser source and of the process optical unit, transferring the redundant data of the laser source and of the process optical unit to the control device by data streaming, and comparing the redundant data of the laser source and of the process optical unit.
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公开(公告)号：US20240271923A1
公开(公告)日：2024-08-15
申请号：US18644189
申请日：2024-04-24
申请人： TRUMPF Laser GmbH
IPC分类号： G01B9/02091 , G01B9/02055
CPC分类号： G01B9/02091 , G01B9/0207
摘要： A method for adjusting a reference section of an optical coherence tomography (OCT) system includes providing the OCT system, generating a measuring beam using the OCT system, conducting the measuring beam to a measurement object, generating a reference beam using the OCT system, conducting the reference beam through the reference section, superimposing the measuring beam reflected from the measurement object and the reference beam, registering interference signals between the measuring beam and the superimposed reference beam using an interferometer of the OCT system, dividing a scanning path of the measuring beam into measurement phases and positioning phases, and adjusting the reference section exclusively in the positioning phases.
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公开(公告)号：US20240149375A1
公开(公告)日：2024-05-09
申请号：US18415909
申请日：2024-01-18
申请人： TRUMPF Laser GmbH
发明人： Benjamin Fuehra , Sebastian Hecker
IPC分类号： B23K26/0622 , B23K26/244 , B23K26/32 , B23K26/57 , B23K103/00 , B23K103/18
CPC分类号： B23K26/0624 , B23K26/244 , B23K26/32 , B23K26/57 , B23K2103/18 , B23K2103/42 , B23K2103/52 , B23K2103/54 , B23K2103/56
摘要： A method for joining at least two parts by using ultrashort laser pulses of a laser beam of an ultrashort pulse laser is provided. At least one of the two parts to be joined is transparent for a wavelength of the ultrashort laser pulses. The method includes joining the at least two parts by using the ultrashort laser pulses of the laser beam along a joining seam. The joining seam has at least two joining points and a joining gap lying between the at least two joining points. Each joining point is longer than 10 μm.
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公开(公告)号：US11942752B2
公开(公告)日：2024-03-26
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 , H01S3/0085 , H01S3/10015 , 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：US11846866B2
公开(公告)日：2023-12-19
申请号：US17965801
申请日：2022-10-14
申请人： TRUMPF Laser GmbH
发明人： Dominik Bauer , Jonathan Brons , Alexander Killi
CPC分类号： G02F1/3503 , G02F1/3507 , G02F1/3511 , H01S3/0092 , G02F2201/17
摘要： An apparatus for spectral broadening of laser pulses includes a main body, a plurality of mirror elements fastened to the main body, each having a mirror surface formed thereon and configured to reflect the laser pulses the plurality of mirror elements being fastened to a main body, and at least one nonlinear optical medium for the passage of the laser pulses for the generation of a nonlinear phase (ΦNL) by self-phase modulation. The at least one nonlinear optical medium may be a sheet-like and disk-shaped solid-state optical medium and/or a gaseous optical medium.
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公开(公告)号：US20230258529A1
公开(公告)日：2023-08-17
申请号：US18295858
申请日：2023-04-05
申请人： TRUMPF Laser GmbH
CPC分类号： G01M11/31 , B23K26/705 , G02B6/4214 , G02B6/4227
摘要： An optical fiber unit includes an optical fiber. The optical fiber includes a light guiding region configured for guiding light through the optical fiber, an input coupling end having a first fiber end surface for coupling the light into the light guiding region, and an output coupling end having a second fiber end surface for coupling the light out of the light guiding region. The optical fiber unit further includes a first end piece arranged at one of the input coupling end and the output coupling end. The first end piece is configured to couple the light into the light guiding region or couple the light out of the light guiding region. The first end piece includes a reflection element configured to divert a portion of the light propagating along a direction of propagation through the light guiding region away from the direction of propagation.
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公开(公告)号：US20230243647A1
公开(公告)日：2023-08-03
申请号：US18296377
申请日：2023-04-06
申请人： TRUMPF Laser GmbH
CPC分类号： G01B21/042 , B23K26/705 , B23K26/38
摘要： A calibration apparatus for a processing system with a plurality of optical tools is provided. The calibration apparatus includes a housing with a stop aperture, a sensor arrangement for capturing light that is incident through the stop aperture, and a light source arrangement for emitting light through the stop aperture.
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公开(公告)号：US20230038729A1
公开(公告)日：2023-02-09
申请号：US17965801
申请日：2022-10-14
申请人： TRUMPF Laser GmbH
发明人： Dominik Bauer , Jonathan Brons , Alexander Killi
摘要： An apparatus for spectral broadening of laser pulses includes a main body, a plurality of mirror elements fastened to the main body, each having a mirror surface formed thereon and configured to reflect the laser pulses the plurality of mirror elements being fastened to a main body, and at least one nonlinear optical medium for the passage of the laser pulses for the generation of a nonlinear phase (ΦNL) by self-phase modulation. The at least one nonlinear optical medium may be a sheet-like and disk-shaped solid-state optical medium and/or a gaseous optical medium.
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10.发明申请公开(公告)号：US20220385019A1
公开(公告)日：2022-12-01
申请号：US17881711
申请日：2022-08-05
申请人： TRUMPF Laser GmbH
摘要： A method for amplifying an ultrashort laser pulse includes: a) stretching the ultrashort laser pulse in time, b) amplifying the time-stretched laser pulse, c) compressing the amplified time-stretched laser pulse, with at least one gain phase contribution selected from a group consisting of a gain dynamics phase contribution of the laser pulse that emerges as a change in a nonlinear phase on account of gain dynamics in step b), a gain bandwidth phase contribution of the laser pulse that emerges as a change in the nonlinear phase on account of a gain bandwidth in step b), and a combination thereof, being compensated by virtue of d) an additional phase contribution being imparted on the laser pulse prior to step c) and/or e) a spectrum of the laser pulse being changed, in such a way that the at least one gain phase contribution is compensated after step c).
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