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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
Applicant: TRUMPF Laser GmbH
Inventor： Jonathan Brons , Rainer Flaig , Dirk Sutter , Ivo Zawischa
CPC classification number: H01S3/0092 , H01S3/0085 , H01S3/10015 , 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%.
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公开(公告)号：US09331451B2
公开(公告)日：2016-05-03
申请号：US14501401
申请日：2014-09-30
Applicant: TRUMPF LASER GMBH
Inventor： Dirk Sutter , Alexander Killi , Jochen Kleinbauer , Yufeng Li
IPC: H01S3/091 , H01S3/0941 , H01S5/065 , H01S5/14 , H01S3/094 , H01S3/1055 , H01S3/106 , H01S3/16 , H01S3/06
CPC classification number: H01S3/091 , H01S3/0604 , H01S3/094015 , H01S3/094084 , H01S3/09415 , H01S3/1055 , H01S3/1062 , H01S3/1618 , H01S3/1643 , H01S5/0654 , H01S5/0656 , H01S5/142 , H01S5/146
Abstract: The disclosure relates to a pump radiation arrangement comprising: a pump radiation source for producing pump radiation, a means for stabilizing the wavelength of the pump radiation source and a laser-active medium through which the pump radiation passes in a bidirectional manner. The pump radiation arrangement also has a retro-reflector for reflecting pump radiation which is not absorbed by the laser-active medium back to the pump radiation source and a wavelength-selective element for preventing a wavelength destabilization of the pump radiation source by filtering out undesirable spectral portions of pump radiation which is not absorbed by the laser-active medium. The invention also relates to an associated method for pumping a laser-active medium.
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Patent Agency Ranking
公开(公告)号：US20230170660A1
公开(公告)日：2023-06-01
申请号：US18161904
申请日：2023-01-31
Applicant: TRUMPF Laser GmbH
Inventor： Jonathan Brons , Raphael Scelle , Dominik Bauer , Aleksander Budnicki , Alexander Killi , Dirk Sutter , Peter Kroetz
CPC classification number: H01S3/0057 , G02F1/3511 , G02F1/3503
Abstract: A laser system for nonlinear pulse compression includes a laser source configured to generate laser pulses with a pulse energy of at least 50 mJ, a spectral broadening device for spectrally broadening the high-energy laser pulses using self-phase modulation, and a compression device including a grating compressor having at least two diffraction gratings and configured to compress the spectrally broadened high-energy laser pulses. The laser system is configured to generate a pulse duration of the high-energy laser pulses of less than 100 fs.
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4.发明申请公开(公告)号：US20150139263A1
公开(公告)日：2015-05-21
申请号：US14501401
申请日：2014-09-30
Applicant: TRUMPF LASER GMBH
Inventor： Dirk Sutter , Alexander Killi , Jochen Kleinbauer , Yufeng Li
IPC: H01S3/091
CPC classification number: H01S3/091 , H01S3/0604 , H01S3/094015 , H01S3/094084 , H01S3/09415 , H01S3/1055 , H01S3/1062 , H01S3/1618 , H01S3/1643 , H01S5/0654 , H01S5/0656 , H01S5/142 , H01S5/146
Abstract: The disclosure relates to a pump radiation arrangement comprising: a pump radiation source for producing pump radiation, a means for stabilizing the wavelength of the pump radiation source and a laser-active medium through which the pump radiation passes in a bidirectional manner. The pump radiation arrangement also has a retro-reflector for reflecting pump radiation which is not absorbed by the laser-active medium back to the pump radiation source and a wavelength-selective element for preventing a wavelength destabilization of the pump radiation source by filtering out undesirable spectral portions of pump radiation which is not absorbed by the laser-active medium. The invention also relates to an associated method for pumping a laser-active medium.
Abstract translation: 本发明涉及一种泵浦辐射装置，其包括：用于产生泵浦辐射的泵浦辐射源，用于稳定泵浦辐射源的波长的装置以及泵辐射以双向方式通过的激光活动介质。 泵辐射装置还具有反射器，用于反射不被激光活性介质吸收到泵浦辐射源的泵浦辐射，以及波长选择元件，用于防止泵浦辐射源的波长不稳定，通过滤除不期望的 泵浦辐射的光谱部分不被激光活性介质吸收。 本发明还涉及一种用于泵送激光活性介质的相关方法。
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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
Applicant: TRUMPF Laser GmbH
Inventor： Jonathan Brons , Rainer Flaig , Dirk Sutter , Ivo Zawischa
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%.
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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
Applicant: TRUMPF LASER GMBH
Inventor： Dirk Sutter , Alexander Killi , Aleksander Budnicki , Florian Jansen
Abstract: 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：US20190036292A1
公开(公告)日：2019-01-31
申请号：US16136349
申请日：2018-09-20
Applicant: TRUMPF LASER GMBH
Inventor： Dirk Sutter , Alexander Killi , Aleksander Budnicki , Florian Jansen
Abstract: 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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