公开(公告)号：US20170222401A1

公开(公告)日：2017-08-03

申请号：US15489931

申请日：2017-04-18

Applicant: TRUMPF Laser GmbH

Inventor： Hagen Zimer ,  Alexander Killi ,  Steffen Ried ,  Simon Nagel ,  Markus Ginter ,  Yufeng Li

IPC: H01S5/14 ,  H01S5/0687 ,  H01S3/13 ,  H01S5/40 ,  H01S3/10

CPC classification number: H01S5/4062 ,  H01S3/08054 ,  H01S5/141 ,  H01S5/4012 ,  H01S5/405 ,  H01S5/4087

Abstract: An external cavity laser apparatus includes a plurality of laser modules collectively including a plurality of beam emitters that collectively emit a plurality of emitted beams. Each laser module includes a base comprising a plurality of stepped platforms, one of the plurality of beam emitters being secured on each platform of the plurality of stepped platforms, and a plurality of module reflectors, one of the plurality of module reflectors being secured on each of the plurality of stepped platforms to receive radiation from a respective one of the plurality of beam emitters located on a same stepped platform. The external cavity laser apparatus further includes an angular dispersive optic and a polarized beam splitter.

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.

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。

公开(公告)号：US09690107B2

公开(公告)日：2017-06-27

申请号：US13833974

申请日：2013-03-15

Applicant: TRUMPF LASER GMBH

Inventor： Viorel C. Negoita ,  Thilo Vethake ,  Alexander Killi ,  Christoph Tillkorn ,  Stephan Strohmaier ,  Steffen Ried ,  Yufeng Li ,  Haiyan An ,  Tobias Barnowski

IPC: G02B5/18 ,  G02B27/44 ,  G02B27/10 ,  H01S5/40 ,  G02B27/28 ,  G02B27/30 ,  G02B27/42 ,  H01S3/00 ,  H01S3/13 ,  H01S3/23 ,  H01S5/00

CPC classification number: G02B27/1086 ,  G02B27/1006 ,  G02B27/1073 ,  G02B27/286 ,  G02B27/30 ,  G02B27/4244 ,  G02B27/4277 ,  H01S3/0071 ,  H01S3/1305 ,  H01S3/1307 ,  H01S3/2391 ,  H01S5/005 ,  H01S5/4012 ,  H01S5/405 ,  H01S5/4062 ,  H01S5/4087

Abstract: A device for wavelength coupling of laser beams (2a, . . . 2n) with different wavelengths (λ1, . . . λn), comprising: at least one laser source for generating a plurality of laser beams (2a, . . . , 2n), and an overlapping device for spatial overlapping of the plurality of laser beams (2a, . . . , 2n) for forming an overlapped laser beam with a plurality of wavelengths (λ1 . . . λn). The device has a feedback device arranged between the laser source and the overlapping device for feeding a radiation proportion of the laser beams (2a, . . . , 2n) to be overlapped back to the laser source, the feedback device comprising a partially reflecting angle-dispersive optical element, in particular a partially reflecting diffraction grating. The overlapping device may, for example, be configured as a transmitting or reflecting diffraction grating whose optical properties are adapted to the optical properties of the partially reflecting diffraction grating to overlap the laser beams (2a, . . . , 2n) in an essentially dispersion-free manner.