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    VORRICHTUNG ZUR WELLENLÄNGENKOPPLUNG VON LASERSTRAHLEN
    1.
    发明公开
    VORRICHTUNG ZUR WELLENLÄNGENKOPPLUNG VON LASERSTRAHLEN 审中-公开
    VORRICHTUNG ZURWELLENLÄNGENKOPPLUNGVON LASERSTRAHLEN

    公开(公告)号：EP2973899A1

    公开(公告)日：2016-01-20

    申请号：EP14711710.5

    申请日：2014-03-12

    Applicant: TRUMPF Laser GmbH

    Inventor： KILLI, Alexander ,  TILLKORN, Christoph ,  RIED, Steffen ,  NEGOITA, Viorel, C. ,  VETHAKE, Thilo ,  STROHMAIER, Stephan ,  LI, Yufeng ,  AN, Haiyan ,  BARNOWSKI, Tobias

    IPC: H01S5/40 ,  G02B27/09 ,  G02B27/10 ,  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: The invention relates to a device (1) for coupling wavelengths of laser beams (2a, 2n) that have different wavelengths (λ
    1 ,..., λ
    n ), and comprising: at least one laser source (3) for generating a plurality of laser beams (2a, 2n), as well as a superposing device (7) for spatially superposing said plurality of laser beams (2a, 2n) so as to form a superposed laser beam (8) with a plurality of wavelengths (λ
    1 ,..., λ
    n ). The device (1) comprises a feedback device which is arranged in the beam path between said laser source (3) and superposing device (7) for the purpose of feeding a beam portion of the laser beams (2a, 2n) to be superposed back to the laser source (3), and which comprises a partially reflective angle-dispersive optical element, particularly a partially reflective diffraction grating (6). The superposing device can, for example, be designed as a transmitting or reflective diffraction grating (7) whose optical properties are adapted to the optical properties of the partially reflective diffraction grating (6) in order for the laser beams (2a, 2n) to be superposed substantially without dispersion.

    Abstract translation: 一种用于波长耦合具有不同波长（λ1，...λn）的激光束（2a，...）的装置，包括：用于产生多个激光束（2a，...，2n）的至少一个激光源 ）和用于形成具有多个波长（λ1·λn）的重叠激光束的多个激光束（2a，...，2n）的空间重叠的重叠装置。 该装置具有布置在激光源和重叠装置之间的反馈装置，用于将要重叠的激光束（2a，...，2n）的辐射比例馈送到激光源，反馈装置包括部分反射角 - 分散光学元件，特别是部分反射的衍射光栅。 重叠装置可以例如被配置为透射或反射衍射光栅，其光学特性适用于部分反射的衍射光栅的光学特性，以与基本上分散的激光束（2a，...，2n）重叠 - 自由的方式。

    VORRICHTUNG UND VERFAHREN ZUR AUFWEITUNG EINES LASERSTRAHLS
    2.
    发明公开
    VORRICHTUNG UND VERFAHREN ZUR AUFWEITUNG EINES LASERSTRAHLS 审中-公开

    公开(公告)号：EP2689285A1

    公开(公告)日：2014-01-29

    申请号：EP12712604.3

    申请日：2012-03-15

    Applicant: TRUMPF Laser GmbH + Co. KG

    Inventor： WALLMEROTH, Klaus ,  TILLKORN, Christoph ,  ZAWISCHA, Ivo

    IPC: G02B27/09 ,  G02B17/08

    CPC classification number: G02B19/0028 ,  G02B17/0812 ,  G02B19/0095 ,  G02B27/09 ,  G02B27/0927 ,  G02B27/0977

    Abstract: The invention relates to a device (11) for widening a laser beam, in particular a UV laser beam (4), comprising: a telescopic arrangement (6) having two spherical folding mirrors (7, 8) for widening the incident collimated laser beam (4), and a lens (3) arranged in the divergent beam path downstream of the telescopic arrangement (7, 8) and having a spherical lens face (3a) for collimation of the widened laser beam (5), wherein the first folding mirror in the beam path is a convexly curved spherical folding mirror (7) and the second folding mirror in the beam path is a concavely curved spherical folding mirror (8). The invention also relates to an associated method for widening a laser beam.

    Abstract translation: 本发明涉及一种用于扩大激光束，特别是UV激光束的装置，包括：望远镜装置，其具有两个用于扩大入射准直激光束的球面折叠镜，以及布置在发散光束路径下游的透镜 望远镜布置，并且具有用于准直展开的激光束的球面透镜面，光束路径中的第一折叠镜是凸曲面的球形折叠镜，而光束路径中的第二折叠镜是凹曲面的球形折叠镜。 本发明还涉及一种用于扩大激光束的相关方法。

    OPEN-LOOP WAVELENGTH SELECTIVE EXTERNAL RESONATOR AND BEAM COMBINING SYSTEM
    3.
    发明公开
    OPEN-LOOP WAVELENGTH SELECTIVE EXTERNAL RESONATOR AND BEAM COMBINING SYSTEM 审中-公开
    开环波长选择性外部谐振器和光束组合系统

    公开(公告)号：EP3210267A1

    公开(公告)日：2017-08-30

    申请号：EP15784633.8

    申请日：2015-10-21

    Applicant: TRUMPF Laser GmbH

    Inventor： KILLI, Alexander ,  RIED, Steffen ,  TILLKORN, Christoph ,  ZIMER, Hagen

    IPC: H01S5/40 ,  H01S3/08 ,  H01S5/14

    CPC classification number: H01S5/4062 ,  H01S3/0805 ,  H01S5/141 ,  H01S5/4012 ,  H01S5/4031 ,  H01S5/405 ,  H01S5/4068 ,  H01S5/4087

    Abstract: A variety of dense wavelength beam combining (DWBC) apparatuses are described herein that combine a plurality of individual input beams into a single output beam. DWBC apparatuses contemplated herein are open-loop configurations, i.e. configurations where the wavelength selective optics of a feedback generation system are decoupled from a beam combining system that combines a plurality of input beams each having a wavelength selected from a range of different wavelengths. Specifically, each constituent beam of the combined output beam produced by the beam combining system traverses an optical path that does not include the wavelength-selective optics of the feedback generation system. DWBC apparatuses contemplated herein further provide for matching the wavelength-dependent angular dispersion functions of optics of the feedback generation system with the wavelength-dependent angular dispersion functions of optics of the beam combining system. The external cavity laser diode array comprises edge-emitting LD (111A-111N), a focussing optics (112) for divergence control of the emitted beams onto diffracting optics (115), a retroreflector (120) and a half-wave plate (113) and a polarizer (114) for control of the output power. An intra-cavity spatial filter (116) may be used to control the spatial beam quality and an extra-cavity dispersive optics (122) for delivering a combined multi-wavelength high power beam.

    Abstract translation: 本文描述了将多个单独输入光束组合成单个输出光束的各种密集波长光束组合（DWBC）设备。 本文考虑的DWBC设备是开环配置，即其中反馈生成系统的波长选择性光学器件与波束组合系统分离的配置，所述波束组合系统组合多个输入波束，每个输入波束具有选自一系列不同波长的波长。 具体而言，由光束组合系统产生的组合输出光束的每个构成光束横穿不包括反馈生成系统的波长选择性光学器件的光路。 此处考虑的DWBC设备进一步提供用于匹配反馈生成系统的光学器件的依赖于波长的角色散函数与光束组合系统的光学器件的依赖于波长的角色散函数。 外腔激光二极管阵列包括发射边缘的LD（111A-111N），用于发射光束发散到衍射光学器件（115）上的聚焦光学器件（112），回射器（120）和半波片（113 ）和用于控制输出功率的偏振器（114）。 可以使用腔内空间滤波器（116）来控制空间光束质量，并且可以使用腔外色散光学器件（122）来输送组合的多波长高功率光束。

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